Original Engine Number Codes for Your Vintage Volkswagen
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          Volkswagen Engine Number Codes

The engine that was originally installed in your VW at the factory, had an engine number stamped into the case, just below the generator stand. This number consists of one or two letters followed by a series of numeric digits. The engine number does not equal the vehicle's VIN, but VW kept records of each new vehicle's original engine number code, and if you write to them you can get this information (for More Info. click here). If your engine has a number plate attached to the case covering the original number, you may have a case that was rebuilt by the factory (and re-numbered at that time). If your case has no number at all, you have a newer case manufactured by an after-market supplier of replacement engines. Unfortunately, it's doubtful that your VW still has it's original engine. Air-cooled VW engines are very interchangeable so when your car's original engine finally died, the mechanic probably just installed a rebuilt engine that came out of another VW. The engine in your VW may have come from a different model (e.g., your bus may have a bug engine) or may not even be the correct displacement (e.g., your '66 bug originally came with a 1300cc engine but now it may have a 1200cc engine). To add to the confusion, the displacement implied by your engine's code number may be incorrect now because a previous owner upgraded the pistons and barrels to a larger displacement (e.g., you have a 'D' numbered case which originally was a 1200cc engine, but someone has installed 1300cc barrels and pistons on your case to increase the displacement and therefore the horsepower). Some restorers don't really care about engine numbers, but if you're trying to research what's currently installed in your VW, or what series engine should be installed in your VW, the table below should help. Note; when you read the engine# stamped into your case, make sure you include the left most letter, which may be partially obscured by the engine case stud. For more detailed information about specific ranges of engine numbers, check your shop manual or find a copy of Muir's "Idiot's Guide" (for More Info. click here).


Engine Specifications
Code Displacement HP Bore/Stroke Comp Ratio Vehicle Date Comments

1131cc (1100) 25 75mm/64mm 5.8: 1 Types 1, 2 To Dec '53
A 1192cc (1200) 36 77mm/64mm 6.6: 1 Type 1 Thru Jul '60 28PICT
AB 1285cc (1300) 52 77mm/69mm 7.3: 1 Type 1 From Aug '65
AC 1285cc (1300) 50 77mm/69mm 7.3: 1 Type 1 From Aug '70 low octane
AD 1584cc (1600) 60 85mm/69mm 7.5: 1 Types 1, 2 From Aug '70
AE 1584cc (1600) 60 85mm/69mm 7.5: 1 Types 1, 2 From Aug '70 emmission controls (M157)
AF 1584cc (1600) 55 85mm/69mm 7.5: 1 Type 1 From Aug '72 low octane
AH 1584cc (1600) 58 85mm/69mm 7.5: 1 Type 1 From Aug '71
AJ 1584cc (1600) 60 85mm/69mm 7.5: 1 Type 1 From Aug '74 Injected
AK 1584cc (1600) 58 85mm/69mm 7.5: 1 Type 1 From Jul '73
AM 1584cc (1600) ?? 85mm/69mm : 1 Type 181 '73 & '74 Thing only
AP 1795cc (1800) 82 93mm/60mm
: 1
Type 2 From Aug '73
AR 1285cc (1300) 52 77mm/69mm : 1 Type 1 From Aug '73
AS 1584cc (1600) 60 85mm/69mm : 1 Type 1 From Dec '73
B 1584cc (1600) 57 85mm/69mm 7.7: 1
7.5: 1
Types 1, 2 Typ 2; from Aug '67
Typ 1; from Aug '69
7.7 = Typ 2
7.5 = Typ 1
CA 1679cc (1700) 66 90mm/60mm : 1 Type 2 From Aug '71 Dual carbs, pancake
CB 1679cc (1700) 66 90mm/60mm : 1 Type 2 From Aug '71 Dual carbs, pancake
CD 1679cc (1700) 66 90mm/60mm : 1 Types ? To ?? pancake
CS 1584cc (1600) 60 85mm/69mm : 1 Type ? To ?? pancake
CT 1584cc (1600) 60 85mm/69mm : 1 Type ? from ?? pancake
D 1192cc (1200) 42 77mm/64mm 7.0: 1 Types 1, 2 From Aug '60
DO 1192cc (1200) 34 77mm/64mm : 1 Type 1 From Jul '71
E 1285cc (1300) 47 77mm/69mm : 1 Types 1 From Aug '65
F 1285cc (1300) 50 77mm/69mm 7.3: 1 Type 1 From Aug '65
G 1493cc (1500) 51 83mm/69mm 7.8: 1 Type 2 Thru Jul '65
H 1493cc (1500) 53 83mm/69mm 7.5: 1 Types 1, 2 Typ 2; from Aug '65
Typ 1; from Aug '66

K 1493cc (1500) 54 83mm/69mm 7.8: 1 Type 3 7.8 thru 7/65
7.5 from 8/65
pancake
L 1493cc (1500) 49 83mm/69mm : 1 Type 1 From Aug '66
R 1493cc (1500S) 66 83mm/69mm 8.5: 1 Type 3 Thru Jul '65 Dual carbs, pancake
T 1584cc (1600) 65 85mm/69mm 7.5: 1 Type 3 From Aug '65 Dual carbs, pancake
U 1584cc (1600) 65 85mm/69mm 7.7: 1 Type 3 From Aug '67 Injected, pancake





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