Model A & B Ford

Ford Garage

Engine Serial Numbers (VIN Number)

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Model A & B Engine Number Assignment

Model A Engine Number Location

Rouge Series Model A Engine Serial Numbers

Canadian Series Model A Engine Serial Numbers

Model B Engine Number Location

Rouge Series Model B Engine Serial Numbers

Canadian Series Model B Engine Serial Numbers

Overview

This (lengthy) page details engine serial number location, dates, and identification for Model A Ford and Model B Ford engines. The engine serial number was used as the defacto VIN number of the vehicle, as noted by Ford in the vehicle's Instruction Book.

The engine serial number is separate from the alpha prefix letter(s). The numeric serial number is unique and is not directly correlated to the prefix letter(s). The prefix is preceded by a ☆ character, and the numeric serial number is followed by a ☆ character, as shown in the pic above.

Most Model A Ford engines with serial number prefixes A, AA / AF, and AAF, and Model B Ford engines with serial number prefixes AB, AAB, B, and BB were built at the Ford Rouge manufacturing complex in Dearborn, Michigan.

Some engines produced at the Rouge for export also carried the marking "Ford U.S.A." stamped on the pad below the serial number, as illustrated in the pic above.

Model A and B engines were also built worldwide, including at Windsor, Canada, at Manchester and later Dagenham, England, at Köln, Germany, and at Gorky Automobile Zavod "ГАЗ" (GAZ), USSR from the 1930's through 1950's.

Model A and B engines produced by Ford of England at Dagenham, and Ford of Germany at Köln, also carried serial number prefixes A / AF, AA, AAF, B, BF, and BB, however with distinctly identifiable numeric serial numbers.

Both Dagenham and Köln used serial numbers assigned from groups of numbers granted by the Rouge from within the larger sequence of Rouge numbers. Some Model B engines having an AA prefix and Rouge group numbers were also built and stamped at Dagenham in 1935 and 1936.

Model A engines with serial number prefix CA, CAA, CAW, CAAW, CAE, CAAE, CAR, CAAR, CAT, CAAT, CAY, CAAY, CAU, CAAU, CAI, CAAI, CAO, CAAO, CAP, CAAP, CAS, CAAS, CAD, and CAAD, and Model B engines with serial number prefix CBG and CBQ were built and stamped at Ford of Canada in East Windsor (Ford City), Ontario. Ford Canada used serial number series of their own control and creation.

Please see the relevant section below for detail information on engine serial numbers for each A or B engine type and production location of interest.

I am also seeking any information about serial numbering used on GAZ A and B engines produced in the Soviet Union in the 1930's through 1950's, as well as G28T (improved B) engines produced at Köln in the 1940's and 50's.


Model A Engine Serial Numbers

Model A Engine Number Assignment

The engine number was assigned to completed engines after they had passed the electric motor-driven engine run-in (run-off) tests and were released for vehicle final assembly. The engine number then became the serial number for the completed vehicle after final (vehicle) assembly.

Important Note:
The engine number only dates the final approval of the assembled run-in engine, not the casting dates of the engine components, not the actual assembly date of the engine components, and not the assembly date of the vehicle.

The vehicle was sometimes assembled up to 3 months after the engine was assembled, tested, and numbered. Engines also were not used in vehicle final assembly in the same sequence that the engine itself was produced or numbered.

At the time of vehicle final assembly, the pre-existing engine number was also usually stamped on the vehicle frame in one or more locations (top of LH frame rail near the Number One body bolt).

The number cannot be inspected without removal of sheet metal and lifting of the body off the frame because the frame number was covered with the splash apron and body. Additionally, it is usually difficult or impossible to read the frame number due to frame corrosion and pitting from the moisture held by the cotton frame webbing. (Additional note: frame serial numbers were typically not stamped on Canadian-built Model A's).

This delay between engine component production, engine assembly, engine test, approval, and numbering at the Rouge, and subsequent vehicle final production at one of the 30+ Assembly Plants or Branches nationwide varied based on the location of the final assembly plant, as well as the different production schedules and rates between plants.

Important Points:
Thus it is common to find an apparent 'later' car with an 'earlier' engine when comparing two vehicles to each other. An 'earlier' engine could be defined as one with either an earlier serial number (indicating production date), or one having earlier part feature characteristics than the serial number (date) would nominally indicate.

Examining the production sequence backwards, this seeming discrepancy is the valid result based on when and where the cars were final assembled, when their engines passed final test and were numbered, when their engines were assembled from components, and when their actual individual engine components were produced. Delays occurred at any combinations of steps in the processes.

It is possible to have a complete engine assembly which was produced using 'earlier' parts or castings, and yet having a 'later' engine number, due to delays and rework within the Engine Production Department at the Rouge. Production Foreman's (handwritten) daily logs and journals on file at the Benson Ford Research Center detail many engines which were delayed or round-tripped within the assembly process, prior to final test, approval, and numbering.

Additionally, it is also possible to have a car assembled at a much later date than the engine numbering date, due to slow sales and vehicle production (especially during 1931). Many completed and numbered engines were warehoused and stored for extended periods before use in a vehicle.

One consequence of the delayed use of warehoused engines is that it is possible to find 1931 Model A's which have a mid-February or earlier built engine having the early numeral styles, which was installed in a chassis after mid-February, and which has the frame number stamped using the later style numerals 1, 6, and 9. Thus both style numerals found on the same car.

Again, these delays are due to production scheduling variations, as well as later use of any engines that did not pass run-in test the first (or subsequent) time and were sent back for engine rework and retest before subsequent numbering and use in vehicle assembly.

Additionally, the original engine production ledgers on file at the Benson Ford Research Center clearly show, by serial number, hundreds of engines which were re-numbered at the Rouge with entirely new engine numbers. Some of these engines were ones which were returned from branches for subsequent scrap, salvage, or recovery/refurbish.


Model A Engine Serial Number Location

All Model A engine serial numbers were hand-stamped on the left hand side of the engine block, above the water inlet as shown above. There were variations in the spacing, position, orientation, and sharpness of individual numerals due to the manual alignment and stamping operation.

The number pad itself was an as-cast surface on US-produced engines and was not machined flat. However, some early 1928 and some Canadian-produced and numbered engine blocks were stamped on a machined pad surface, not on an as-cast surface.


Large Bore & Small Bore, LHD & RHD Model A Engine Production

The engine number is distinct from the alpha prefix letter(s). The numeric number is unique and is not directly correlated to the prefix letter(s). The prefix is preceded by a ☆ character, and the numeric number is followed by a ☆ character.

Ford also built Right Hand Drive (RHD) engine assemblies and vehicles at the Rouge as well. These engines were primarily destined for South America and Japan, not the British Empire. Only the specific engine serial number, not the prefix nor type, can identify the actual engine production facility as being either the Rouge or Dagenham, England. Canadian-produced engines can be readily identified by their Canada-unique prefixes and serial numbers.

RHD engines and vehicles produced in Canada for export to British Empire countries carried typical Canadian engine number prefixes, and the prefix did not indicate if the engine and chassis was configured for RHD or LHD usage.

Engines produced at the Rouge for RHD usage carried the 'F' in the engine number prefix, such as '☆AF' or '☆AAF'. At the Rouge, the 'F' indicated that the engine and chassis was configured for RHD usage.

For example, engine number 1234567☆ was produced at the Rouge and might have had a prefix of ☆A, ☆AA, ☆AF, or ☆AAF depending on whether it was for a car or truck (clutch), and whether it was for a large bore engine and transmission assembly for the US, or a RHD large bore engine and transmission assembly produced at the Rouge for export to a RHD non-British Empire country.

British-built:
Small bore engines were produced in England (primarily RHD) and used serial numbers from assigned number groups granted by the Rouge to the foreign engine plants. These engines were primarily for domestic use in England, not for export. An 'F' in the prefix of a British-built engine indicates the small bore engine, not whether it was for a RHD or LHD chassis. Large bore British-built engines did not carry the 'F' in the engine number prefix, nor did RHD English-produced chassis. The 'AF' indicated that the British-produced vehicle had a small bore engine.

For example, engine serial number 700001☆ was in a group of Rouge numbers which were assigned by Dearborn to Ford's engine production operation in Manchester, England for their use, and may have ultimately had a prefix of ☆A or ☆AA depending on whether it was destined for a car or truck (clutch). It may also have had an 'F' in the prefix (i.e. ☆AF) to indicate if it was assigned to a small bore engine.


Canadian-built:
All Canadian-produced engines carried Canadian-unique serial numbers and prefixes, and were not assigned from the Rouge number series, nor did they use ☆A, ☆AA, ☆AF, or ☆AAF Rouge prefixes.

Canadian-produced RHD vehicles were primarily destined for export to British Empire countries such as Australia, New Zealand, India, Singapore, and elsewhere, but not Great Britain itself.

Canadian engine production records, prefixes, and details follow in the second table below, after the Rouge records.


Rouge-built:
Large bore 'AF' prefix serial number engines were produced and numbered at the Rouge for all RHD vehicles except those made in England. The 'AF' indicated that the Rouge-produced vehicle was a RHD configuration. These engines/chassis were primarily exported to South American RHD countries.


US (Rouge-built) Model A Engines

The first table below shows the Rouge engine production records and information available from the Benson Ford Research Center. The exact dates in the table come from the original Foreman's handwritten notes and records in the original Daily Engine Production Log books.

The table below also indicates some series or groups of numbers which were transferred by the Rouge to Ford's other engine production facilities worldwide at Manchester, Dagenham, and Köln.

Those numbers were reserved by the Rouge for the foreign (Cork, Manchester, Dagenham and Köln) operation's local production use and assignment on both engines and vehicles they produced throughout the 1930's, continuing well after US Model A and B regular vehicle production had ended.

Those foreign operations built mixes of small and large bore engines, in both LHD and RHD configurations, and those engines would have a 'Rouge' number, though the engine was built and numbered elsewhere in the world.

These foreign-use numbers are sometimes referred to as 'omitted' numbers since they were not actually physically stamped at the Rouge facility in the US.

Rouge Series Model A Ford Engine Serial Numbers
Rouge
Number
Prefix
Starting
Engine
Number
Ending
Engine
Number
Date Notes
☆A1☆ Engine number 1 stamped October 20, 1927
A / AA 1 137 October 1927
A / AA 138 971 November 1927
A / AA / AF / AAF 972 5275 December 1927
A / AA / AF / AAF 5276 17251 January 1928
A / AA / AF / AAF 17252 36016 February 1928
☆A19986☆ First engine with bead in oil pan for oil tray numbered February 9, 1928
A / AF 36017 67700 March 1928
A / AF 67701 109740 April 1928
A / AF 109741 150000 May 1928
158001 160000 May 29, 1928 2,000 #'s transferred to Cork
A / AF 160001 165726 May 1928
A / AF 165727 224276 June 1928
A / AF 224277 254000 July 1928
254001 256000 July 16, 1928 2,000 #'s transferred to Cork
A / AF 256001 295707 July 1928
A / AF 295708 384867 August 1928
A / AF 384868 419000 September 1928
419001 422000 September 13, 1928 3,000 #'s transferred to Cork
A / AF 422001 473012 September 1928
A / AA / AF / AAF 473013 585696 October 1928
492511☆ Bendix Starter Drive replaced Abell Starter Drive
A / AA / AF / AAF 585697 697829 November 1928
A / AA / AF / AAF 697830 700000 December 1928
700001 704000 December 3, 1928 4,000 #'s transferred to Manchester
A / AA / AF / AAF 704001 810122 December 1928
A / AA / AF / AAF 810123 940000 January 1929
940001 950000 January 25, 1929 10,000 #'s transferred to export
A / AA / AF / AAF 950001 983136 January 1929
A / AA / AF / AAF 983137 1127171 February 1929
☆AA995080☆ "Ford USA" is factory stamped with the engine number on a
Rouge-built AA engine in Portugal (João Paulo Gonçalves)
☆IAA998339☆ ☆IAA998339☆ is factory stamped on a
Rouge-built industrial AA engine in Illinois (Mark Maron)
☆A1000000☆ Engine ☆A1000000☆ numbered 3:07 pm, February 4, 1929
A / AA / AF / AAF 1127172 1298827 March 1929
A / AA / AF / AAF 1298828 1478647 April 1929
A / AA / AF / AAF 1478648 1663401 May 1929
A / AA / AF / AAF 1663402 180000 June 1929
1800001 1810000 June 22, 1929 10,000 #'s transferred to export
A / AA / AF / AAF 1810001 1854831 June 1929
Started using 1/8 pipe plug in intake manifold, June 18, 1929
A / AA / AF / AAF 1854832 2045422 July 1929
☆A2000000☆ Engine ☆A2000000☆ numbered 4:50 pm, July 24, 1929
A / AA / AF / AAF 2045423 2243920 August 1929
A / AA / AF / AAF 2243921 2396932 September 1929
A / AA / AF / AAF 2396933 2571781 October 1929
A / AA / AF / AAF 2571782 2678140 November 1929
A / AA / AF / AAF 2678141 2742695 December 1929
A / AA / AF / AAF 2742696 2826649 January 1930
A 2786714 Rouge-built engine is installed in a 1930 Briggs Town Sedan
final-assembled after January 1930 at Asnieres, France, and having an original
Asnieres brass serial number / firewall patent data plate (Michael Schwarzer)
A / AA / AF / AAF 2826650 2940776 February 1930
☆AF2903908☆ Rouge-built RHD big bore AF engine in Nebraska (Rodney Gage)
A / AA / AF / AAF 2940777 2950000 March 1930
2950001 2960000 March 4, 1930 10,000 #'s transferred to Manchester
A / AA / AF / AAF 2960001 3010000 March 1930
☆A3000000☆ Engine ☆A3000000☆ numbered 9:10 am, March 12, 1930
3010001 3020000 January 29, 1930
March 13, 1930
10,000 #'s transferred to Manchester
A / AA / AF / AAF 3020001 3114465 March 1930
A / AA / AF / AAF 3114466 3304703 April 1930
3304703☆ Last RHD AF or AAF prefix engine stamped at the Rouge May 1, 1930
A / AA 3304704 3450000 May 1930
3450001 3460000 March 25, 1930
May 22, 1930
10,000 #'s transferred to Manchester
A / AA 3460001 3509306 May 1930
A / AA 3509307 3702547 June 1930
A / AA 3702548 3730000 July 1930
3730001 3740000 March 25, 1930
July 8, 1930
10,000 #'s transferred to Manchester
A / AA 3740001 3771362 July 1930
A / AA 3771363 3883888 August 1930
A / AA 3883889 3950000 September 1930
3950001 3960000 August 21, 1930
September 17, 1930
10,000 #'s transferred to Manchester
A / AA 3960001 4005973 September 1930
☆A4000000☆ Engine ☆A4000000☆ numbered 9:30 am, September 29, 1930
4098041☆ All engines after this number have nickel alloy exhaust valves,
September 30, 1930
A / AA 4005974 4093995 October 1930
A / AA 4093996 4177733 November 1930
A / AA 4177734 4237500 December 1930
A / AA 4237501 4250000 January 1931
4250001 4260000 December 1, 1930
January 13, 1931
10,000 #'s transferred to Manchester
A / AA 4260001 4310300 January 1931
A / AA 4310301 4393627 February 1931
☆A4365834☆ First engine stamped with new numerals 1-6-9, February 18, 1931
A / AA 4393628 4450000 March 1931
4450001 4460000 January 26, 1931
March 18, 1931
10,000 #'s transferred to Manchester
A / AA 4460001 4470000 March 1931
4470001 4490000 February 23, 1931
March 23, 1931
20,000 #'s transferred to Manchester
4472283 Manchester-assigned engine number is applied to a
1931 Briggs Sedan in Denmark, and having an original
Fred Rasmussen & Co. floor board serial number plate (Per Jensen)
A / AA 4490001 4520831 March 1931
A / AA 4520832 4521600 April 1931
☆A20000000☆
actual stamping
Ford engine ☆A20000000☆ run-off and numbered 9:55 am, April 1, 1931
20,000,000th Ford (1931 SW Sedan)
Driven off final assembly line in ceremony April 14, 1931
A / AA 4521601 4611921 April 1931
A / AA 4611922 4695999 May 1931
4634572☆ Four extra holes in oil pan tray for Mr. P.E. Martin, May 11, 1931
☆AX4687000☆ ☆AX4687003☆ Four experimental "AX" prefix engines, May 12-13, 1931
A / AA 4696000 4746730 June 1931
4700000☆ Shield on oil pump, 1/8 lower tray for Mr. P.E. Martin, June 3, 1931
A / AA 4746731 4777282 July 1931
4751775☆ Begin production use of low dipper oil tray July 7, 1931
Begin production use of hex drain plug bung oil pan July 14, 1931
~ ~ August 1931 No Rouge engine production
A / AA 4777283 4780000 September 1931
4780001 4800000 May 13, 1931
September 9, 1931
20,000 #'s transferred to Manchester
4800001 4803000 June 1, 1931
September 9, 1931
3,000 #'s transferred to Köln
A / AA 4803001 4824809 September 1931
A / AA 4824810 4826746 October 1931
A / AA 4826747 4830806 November 1931
~ ~ December 1931 No Rouge engine production
A / AA 4830807 4830900 January 1932
4830901 4840900 May 13, 1931
January 3, 1932
10,000 #'s transferred to Dagenham
AA 4832774 Dagenham-assigned engine number is applied to a
Type AA 3 Long truck built at Asnieres, France after May 1931
A / AA 4840901 4842983 January 1932
A / AA 4842984 4843000 February 1932
4843001 4844000 January 25, 1932
February 1, 1932
1,000 #'s transferred to Köln
A / AA 4844001 4846691 February 1932
A / AA 4846692 4849340 March 1932
A / AA 4849341 4850000 April 1932
4850001 4855000 January 27, 1932
April 7, 1932
5,000 #'s transferred to Dagenham
☆AA4854953☆ Dagenham-assigned AA number is factory stamped on a Model B block
in an English-built AA truck in New Zealand (Justin Bicknell)
A / AA 4855001 4855171 April 1932
A / AA 4855172 4856255 May 1932
A / AA 4856256 4856745 June 1932
A / AA 4856746 4857556 July 1932
A / AA 4857557 4857988 August 1932
4857695☆ First Rouge production use of Model B camshaft and push rods (tappets)
in Model A engines, August 11, 1932
☆AA4857843☆ Begin 100% use of Model B camshaft and push rods (tappets)
in Model A engines, August 11, 1932
A / AA 4857989 4858476 September 1932
A / AA 4858477 4858703 October 1932
A / AA 4858704 4858930 November 1932
A / AA 4858931 4858979 December 1932
A / AA 4858980 4859000 1933
4859001 4859800 October 10, 1932
July 27, 1933
800 #'s transferred to Köln
A / AA 4859801 4859948 1933
A / AA 4859949 4860509 1934
A / AA 4860510 4860800 1935
4860801 4862800 February 16, 1933
April 19, 1935
2,000 #'s transferred to Dagenham
4862801 4864800 October 5, 1935(33)
*verify
2,000 #'s transferred to Dagenham
A / AA 4864801 4865384 1935
Un-numbered Model A 'Diamond' block in Michigan
D-30-5 casting code, April 30, 1935
4865501 4866500 June 14, 1935
1,000 #'s transferred to Köln
A / AA 4865385 4867715 1936
☆A4866627☆ Model A 'Diamond' block in Alabama (Bill Stocks)
L-2-5 casting code, December 2, 1935
☆A4866733☆ Model A 'Diamond' block in Arizona (Jim Henson)
A / AA 4867716 4870083 1937
☆A4869469☆ Model A 'Diamond' block in Maine (Bill Alexander)
C-5-7 casting code, March 5, 1937
A / AA 4870084 4872754 1938
☆A4870709☆ Model A 'Diamond' block having hardened exhaust valve seats
in California (Marco Tahtaras)
☆A4871839☆ Model A 'Diamond' block having Model B camshaft in Nebraska (Rod Gage)
A / AA 4872755 4872799 1939
A / AA 4872800 4872843 1940
A / AA 4872844 4872864 1941
A / AA 4872865 Last Rouge-built and numbered Model A engine?
January 31, 1944
A / AA 4872866 4900000 Any exist?
4900001 4920000 May 13, 1931 20,000 #'s
returned from Manchester?
A / AA 4920001 4978900 Any exist?
4978901 5000000 October 30, 193(4)
? *verify
22,000 #'s transferred to Dagenham
☆AA4981465☆ Dagenham-assigned AA number is factory stamped on a Model B block
in an English-built AA truck in England (John Charlton)

Canadian Model A Engines

Model A engines were also built and assembled in East Windsor (Ford City), Ontario.

Canadian-produced Model A serial numbers were also stamped on the engine block left hand side, the same as US-produced engines.

The engine number is separate from the prefix letter(s). The number is unique and is not directly correlated to the prefix letter(s) or to US production engine numbers. The prefix is preceded by a ☆ character, and the numeric serial number is followed by a ☆ character.

Canadian-produced engines were numbered with a sequential number beginning with 1 (one). Letter prefixes started with ☆CA, CAW, CAE, CAR, CAT, CAY, CAU, CAI, CAO, CAP, CAS, and CAD, following the layout of the QWERTY typewriter keyboard. No hidden meaning there!

The individual unique engine number's prefix may also include a double A (AA) in place of the single letter A to designate the engine was equipped with a truck clutch. For example, ☆CAAQ followed by the serial number and closing ☆.

Shown above is what I believe to be an authentic early Canadian engine ☆CA3834☆ from April 1928. Note the small sized number pad. What makes it unusual is that the number pad appears to be machined flat in the same plane as the water inlet boss. Later number pads were un-machined as-cast surfaces.

The table below shows the information available from Ford of Canada Historical Archives.

Canadian QWERTY Series Model A Engine Numbers
Canadian
Model A
Prefix
Starting
Engine
Number
Ending
Engine
Number
End
Date
CA / CAA 1 479 February 28, 1928
CA / CAA 480 3229 March 31, 1928
April 1928 Car and truck clutch spring commonized.
CAA truck engine prefix discontinued.
CA 3230 7172 April 30, 1928
CA 7173 13772 May 31, 1928
CA 13773 22563 June 30, 1928
CA 22564 32817 July 31, 1928
CA 32818 44610 August 31, 1928
CA 44611 53531 September 30, 1928
CA 53532 63174 October 31, 1928
CA 63175 71370 November 30, 1928
CA 71371 78127 December 31, 1928
CA 78128 89474 January 31, 1929
☆CA78201☆ Single disc clutch usage began.
CA 89474 102209 February 28, 1929
CA / CAA 102210 115460 March 31, 1929
☆CAA10728☆ Stronger clutch spring released for trucks.
CAA prefix reinstated for all truck engines.
CA / CAA 115461 128690 April 30, 1929
CA / CAA 128691 137105 May 31, 1929
CA / CAA 137106 141953 June 30, 1929
CA / CAA 141954 146518 July 31, 1929
CA / CAA 146519 150120 August 31, 1929
CAQ / CAAQ 1 10000 November 4, 1929
CAW / CAAW 1 10000 February 4, 1930
CAE / CAAE 1 10000 March 14, 1930
CAR / CAAR 1 10000 April 14, 1930
CAT / CAAT 1 10000 May 13, 1930
CAY / CAAY 1 10000 June 11, 1930
CAU / CAAU 1 10000 August 7, 1930
CAI / CAAI 1 10000 October 16, 1930
CAO / CAAO 1 10000 February 9, 1931
CAP / CAAP 1 10000 April 1, 1931
CAS / CAAS 1 10000 June 2, 1931
CAD / CAAD 1 6877 February 29, 1932

Model B Engine Serial Numbers

US, Canadian, and British Model B Engine Serial Number Location

US and Canadian Model B and BB, and British (1932 only) Model AB, ABF, B, and BF serial numbers were stamped on an as-cast pad on the top of the flywheel housing, above the starter as shown in the pic below. The engine block pad was left unstamped and as-cast.

The pic above shows the typical US and Canadian Model B engine number location on top of the Model B or Model 46 flywheel housing. Note that the number reads from the front of the engine in this example. Others read from the rear.


British Model B Engine Serial Number Location Change

For 1932 only, British Model AB, ABF, B, and BF cars, trucks, and engines carried the serial number (from US Rouge assigned number groups) stamped on top of the flywheel housing, the same as all US, Canadian, and German Model B's.

For 1933 and subsequent production years, British Model B, BF, and Fourteen cars, and Model BB Ford and Fordson trucks and engines again carried the serial number (from US Rouge number groups) stamped on the as-cast pad above the water inlet on the block, the same location as all the earlier Model A's.

For example, the British 1933 Model B, 24 & 14.9 H.P. and British 1934 Model B "Fourteen" Instruction Books clearly describe that the serial numbers were again stamped on the engine block left hand side above the water inlet.

The serial number relocation from the flywheel housing casting to the former location on the engine block casting was done to comply with British law that the serial number be applied to the engine block casting itself, not on a removable component like the flywheel housing.


German 1936-41 Model B Engine Serial Numbers and Location

German Model B series engines from 1936-41 used an apparently improved version of the original 1932 Model B engine, prior to the implementation of the yet further-improved 1942 G28T 'B' engine having insert bearings and pressure oiling.

The left hand side of the engine block casting often had the Ford script, as well as the "EB" logo mark of Eisenwerk Brühl, the German foundry that produced the block casting for Ford Köln. The pic below was suppled by Wilhelm Andersen of Norway.

I am seeking further information and photos about these German 1936-41 series engines, their improvements, and their prefix(s), serial numbers, and format.


German Model G28T Engine Serial Number Location

1942 and newer German G28T (improved Model B) engines were used in Ford Ruhr, B3000, and FK Series trucks (and Claas combines) through the mid 1950's. The G28T had insert bearings and pressure oiling.

The G28T carried the engine serial number stamped on the pad above the water inlet on the left hand side of the block, the same location as all the earlier Model A's.

In addition, the left hand side of the engine block casting had the Ford part number G28T-6015 and a date code cast-in, as well as the "EB" logo mark of Eisenwerk Brühl, the German foundry that produced the block casting for Ford-Köln. Also, many blocks had the stylized F-K logo cast-in as well.

I am seeking further information and photos about these German G28T series engines, their prefix(s), serial numbers, and format.


US (Rouge) Model B Engines

Model B 'engine' serial numbers started at 5,000,000 and increased sequentially. The assigned number was stamped on the (B-6395) flywheel housings of completed engines after they had passed run-in (run-off) tests and were released for vehicle final assembly.

The engine (flywheel housing) number then became the serial number for the completed vehicle after final assembly. The number is separate from the prefix letter(s). The number is unique and is not directly correlated to the prefix letter(s). The prefix is preceded by a ☆, and the number is followed by a ☆.

Rouge Series Model B Ford Engine Serial Numbers
Rouge
Number
Prefix
Starting
Engine
Number
Ending
Engine
Number
Date Notes
AB / AAB 5000000 5000015 November 1931
AB / AAB 5000016 5001863 December 1931
AB / AAB 5001864 5013187 January 1932
☆AB5001874☆ Factory stamped number on a Model B-6395 flywheel housing
January 1932 number reads from front of engine
AB / AAB 5013188 5032500 February 1932
AB / AAB 5032501 5049492 March 1932
AB / AAB 5049493 5062386 April 1932
B / BB 5062387 5064906 April 1932
B / BB 5064907 5087732 May 1932
5069693 100% Using new style 2-hole intake manifold, May 9, 1932
5081832 100% Using new oil fill pipe, May 25, 1932
B / BB 5087733 5132621 June 1932
B / BB 5132622 5144010 July 1932
B / BB 5144011 5146668 August 1932
B / BB 5146669 5157918 September 1932
5147874 Engine number is applied to a British bodied
Type AN Model B Tudor built at Asnieres, France
B / BB 5157919 5165401 October 1932
B / BB 5165402 5175635 November 1932
5175104 Begin Counterweighted Crankshaft, December 5, 1932
B / BB 5175636 5179579 December 1932
B / BB 5179580 5187129 January 1933
5186063 First recorded use of pressed-on crankshaft counterweights
B / BB 5187130 5192755 February 1933
☆B5187187☆ Factory stamped number on a Model 46-6395 flywheel housing
February 1933 number reads from front of engine
B / BB 5192756 5203772 March 1933
☆BF5198885☆ Dagenham-assigned "BF" prefix number is factory stamped on a
14.9 HP Model B small bore block in the UK, Registration Number ANN 20.
Dagenham-built after December 1933
B / BB 5203773 5208842 April 1933
B / BB 5208843 5216030 May 1933
B / BB 5216031 5227763 June 1933
B / BB 5227764 5234547 July 1933
☆BB5295660☆ Factory stamped number on a Model 46-6395 flywheel housing
July 1933 number reads from front of engine
B / BB 5234548 5241341 August 1933
B / BB 5241342 5245552 September 1933
B / BB 5245553 5248333 October 1933
B / BB 5248334 5249669 November 1933
B / BB 5249670 5263534 December 1933
☆B5261034☆ Factory stamped number on a Model 46-6395 flywheel housing
B / BB 5263535 5267507 January 1934
B / BB 5267508 5275064 February 1934
B / BB 5275065 5277589 March 1934
B / BB 5277590 5285357 April 1934
B / BB 5285358 5287403 May 1934
B / BB 5287404 5288942 June 1934
B / BB 5288943 5290174 July 1934
B / BB 5290175 5292536 August 1934
☆BB5317886☆ Dagenham-assigned "BB" prefix number is factory stamped
on a 24 HP Model B block in the UK
in a Dagenham-built 1934 Fordson Two Ton Truck.
☆B5331574☆ Factory stamped number on a Model 46-6395 flywheel housing
1935 or 1936 number reads from front of engine
☆B5343498☆ Number is factory stamped on a Model B block with 'GS' casting
mark and a Fordson Forward Control oil pan in the UK (John Cochran)
C26 cylinder head casting code, March 2, 1936
☆BB5352975☆ Number is factory stamped on a Model B-6395 flywheel housing
on a Model B engine Power Unit in Wisconsin (Jerry Parr)
L159 block casting code, December 15, 1939
Cylinder Head casting date is 122939
☆B5356180☆ Number is factory stamped on a Model B engine block
with a Fordson Forward Control oil pan in the UK (John Cochran)
L219 block casting code, December 21, 1939
☆AA4854953☆ Dagenham-assigned AA number is factory stamped on a Model B block
in an English-built AA truck in New Zealand (Justin Bicknell)
☆AA4981465☆ Dagenham-assigned AA number is factory stamped on a Model B block
in an English-built AA truck in England (John Charlton)

Canadian Model B Engines

A limited number of Model B engines were also built and assembled in East Windsor (Ford City), Ontario.

Canadian-produced 1932-34 four cylinder 'engine' serial numbers were stamped on the top of the Model B or Model 46 flywheel housing above the starter, and the engine block pad was left unnumbered. The prefix is preceded by a ☆, and the number is followed by a ☆.

The table below shows the information available from Ford of Canada Historical Archives.

Canadian Model B 'Engine' Serial Numbers
Canadian
Model B
Prefix
Starting
Number
Ending
Number
Date
CBG 1 5000 Start
April 3, 1932
CBQ 1 3999 End
September 6, 1932
CBW 1 5000 April 1933
CBE ? ? ?
CBR ? ? ?
CBT 1 5000 ?

More Model A Ford 'by the numbers' web pages on Ford Garage:

  1. Model A & B 'Diamond' Block and Date Code Engine Markings
  2. Model A Assembly Plant Body Number decoder
  3. 1930 Model A Ford Assembly Branch locations
  4. Model A, B, and Early V8 Ford Patent Plate and Patent Numbers

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updated frequently since:
October 1999