A question that comes up often on forums and the like is "What is my engine?" or "What does my engine code mean?". To help with these questions I have put this handy little guide to help. Partly pilfered from Alex (aka Seamonster) Templetons post on the Lothians forum. I hope it helps.
Enter the name for this tabbed section: Aircooled Engine Codes - Type 1 - Beetles and buses prior to 1981
A 1200 Type 1 up to 7/65 (1192cc 30hp)
B 1600 Type 2 8/67 - 7/70
Type 1 8/68 - 7/70 (USA)
C 1600 Type 2 8/67 - 7/70 (M240)
D 1200 Type 2 from 5/59 (1192cc 34hp)
Type 1 from 8/65 (1192cc 34hp)
E 1300 Type 1 8/65 - 7/70
F 1300 Type 1 8/65 - 7/70
G 1500 Type 2 up to 7/65
H 1500 Type 2 8/65 - 7/68
Type 1 8/65 - 7/70
Type 181 8/69 - 2/71
K 1500 Type 3 8/65 - 10/73
L 1500 Type 2 from 11/65
Type 1 8/66 - 7/70 (M240)
M 1500 Type 3 8/65 - 7/73
N 1500 Type 3 8/65 - 7/73 (M240)
P 1600 Type 3 8/65 - 7/73 (M240)
R 1500 Type 3 8/63 - 7/65 (1500S)
T 1600 Type 3 8/65 - 7/73
U 1600 Type 3 from 8/65 (fuel injection)
UO 1600 Type 3 8/67 - 7/73
AB 1300 Type 1 8/70 - 7/73
AC 1300 Type 1 8/70 - 7/75 (M240)
AD 1600 Type 1 8/70 - 7/73
Type 2 8/70 - 7/73
AE 1600 Type 1 8/70 - 7/71 (USA)
AF 1600 Type 1 8/70 - 1/80 (M240)
Type 2 8/70 - 7/79 (M240)
Type 181 1/74 - 1/82 (M240)
AG 1600 Type 181 8/70 - 7/76
AH 1600 Type 1 8/71 - 1/76 (USA)
AJ 1600 Type 1 8/74 - 12/80 (USA & Japan fuel injection)
AK 1600 Type 1 8/72 - 7/73 (USA)
AL 1600 Type 181 3/73 - 7/79
AR 1300 Type 1 8/73 - 7/75
AS 1600 Type 1 8/73 - 7/80
Type 2 8/73 - 7/79
AW 1800 Type 4
AP 1800 Type 4
ED 1800 Type 4
GD 2000 Type 4
CJ 2000 Type 4
GE 2000 Type 4
CU 2000 Type 4
CV 2000 Type 4
(Note M240 = Optional Low Compression Engine,
a reference to the type of pistons installed)
The Mexican beetles and Brazilian Bays also used the Type 1 engines however I don't yet have the technical data available.
B 1600 Type 2 8/67 - 7/70
Type 1 8/68 - 7/70 (USA)
C 1600 Type 2 8/67 - 7/70 (M240)
D 1200 Type 2 from 5/59 (1192cc 34hp)
Type 1 from 8/65 (1192cc 34hp)
E 1300 Type 1 8/65 - 7/70
F 1300 Type 1 8/65 - 7/70
G 1500 Type 2 up to 7/65
H 1500 Type 2 8/65 - 7/68
Type 1 8/65 - 7/70
Type 181 8/69 - 2/71
K 1500 Type 3 8/65 - 10/73
L 1500 Type 2 from 11/65
Type 1 8/66 - 7/70 (M240)
M 1500 Type 3 8/65 - 7/73
N 1500 Type 3 8/65 - 7/73 (M240)
P 1600 Type 3 8/65 - 7/73 (M240)
R 1500 Type 3 8/63 - 7/65 (1500S)
T 1600 Type 3 8/65 - 7/73
U 1600 Type 3 from 8/65 (fuel injection)
UO 1600 Type 3 8/67 - 7/73
AB 1300 Type 1 8/70 - 7/73
AC 1300 Type 1 8/70 - 7/75 (M240)
AD 1600 Type 1 8/70 - 7/73
Type 2 8/70 - 7/73
AE 1600 Type 1 8/70 - 7/71 (USA)
AF 1600 Type 1 8/70 - 1/80 (M240)
Type 2 8/70 - 7/79 (M240)
Type 181 1/74 - 1/82 (M240)
AG 1600 Type 181 8/70 - 7/76
AH 1600 Type 1 8/71 - 1/76 (USA)
AJ 1600 Type 1 8/74 - 12/80 (USA & Japan fuel injection)
AK 1600 Type 1 8/72 - 7/73 (USA)
AL 1600 Type 181 3/73 - 7/79
AR 1300 Type 1 8/73 - 7/75
AS 1600 Type 1 8/73 - 7/80
Type 2 8/73 - 7/79
AW 1800 Type 4
AP 1800 Type 4
ED 1800 Type 4
GD 2000 Type 4
CJ 2000 Type 4
GE 2000 Type 4
CU 2000 Type 4
CV 2000 Type 4
(Note M240 = Optional Low Compression Engine,
a reference to the type of pistons installed)
The Mexican beetles and Brazilian Bays also used the Type 1 engines however I don't yet have the technical data available.
Enter the name for this tabbed section: Aircooled Transmission (Gearbox) Codes - Type 1 - Beetles and buses prior to 1981
AA 1200 4.375 From chassis No 0 981 810
AB 1300 4.375 up to 8/70
AC 1500 4.125 Also some 1300 from 8/70
AD 1200 4.375 Limited Slip Diff
AE 1300 4.375 Limited Slip Diff
AF 1500 4.125 Limited Slip Diff up to 8/70;
also some 1300 from 8/70
AG 1200 4.375 Type 147 (Fridolin)
AH 1500 4.125 IRS from 8/68
1600 4.125 8/69 - 8/72
AK 1500 3.875 Type 181 Trekker up to 8/70
1600 3.875 Type 181 Trekker from 8/70
AL 1500 3.875 Type 181 with LSD up to 8/70
1600 3.875 Type 181 with LSD from 8/70
AM 1300 4.375 Saloon and Cabriolet from 8/70
AN 1600 3.875 KG with IRS from 8/70
AO 1600 3.875 KG from 8/70
AP 1300 4.375 LSD from 8/70
AQ 1600 4.125 LSD 8/70 - 8/72
AR 1600 3.875 KG with LSD from 8/70
AS 1600 3.875 Type 1 from 8/72
AT 1600 3.875 1303s and Cabriolet from 8/72
AU 1600 3.875 Ditto with LSD
BA 1300/1500 4.375 Semi-auto from 8/68 - 8/70
BC 1300/1500 4.375 Ditto with LSD
BE 1600 4.125 Semi-auto from 8/70 - 8/71
BF 1600 4.125 Ditto with LSD
BG 1300 4.125 KG with Semi-auto from 8/70
BH 1300 4.125 Ditto with LSD
BJ 1300 4.375 Semi-auto from 8/70
BK 1300 4.375 Ditto with LSD
DA 1500/1600 4.125 Type 3 swingaxle up to 8/68*
DB 1500/1600 4.125 Ditto with LSD*
DC 1500/1600 4.125 Type 3 with IRS from 8/68
DD 1500/1600 4.125 Ditto with LSD
*Note that reinforced swingaxle design was available
on post - 8/68 Type 3 models as an option (M263)
AB 1300 4.375 up to 8/70
AC 1500 4.125 Also some 1300 from 8/70
AD 1200 4.375 Limited Slip Diff
AE 1300 4.375 Limited Slip Diff
AF 1500 4.125 Limited Slip Diff up to 8/70;
also some 1300 from 8/70
AG 1200 4.375 Type 147 (Fridolin)
AH 1500 4.125 IRS from 8/68
1600 4.125 8/69 - 8/72
AK 1500 3.875 Type 181 Trekker up to 8/70
1600 3.875 Type 181 Trekker from 8/70
AL 1500 3.875 Type 181 with LSD up to 8/70
1600 3.875 Type 181 with LSD from 8/70
AM 1300 4.375 Saloon and Cabriolet from 8/70
AN 1600 3.875 KG with IRS from 8/70
AO 1600 3.875 KG from 8/70
AP 1300 4.375 LSD from 8/70
AQ 1600 4.125 LSD 8/70 - 8/72
AR 1600 3.875 KG with LSD from 8/70
AS 1600 3.875 Type 1 from 8/72
AT 1600 3.875 1303s and Cabriolet from 8/72
AU 1600 3.875 Ditto with LSD
BA 1300/1500 4.375 Semi-auto from 8/68 - 8/70
BC 1300/1500 4.375 Ditto with LSD
BE 1600 4.125 Semi-auto from 8/70 - 8/71
BF 1600 4.125 Ditto with LSD
BG 1300 4.125 KG with Semi-auto from 8/70
BH 1300 4.125 Ditto with LSD
BJ 1300 4.375 Semi-auto from 8/70
BK 1300 4.375 Ditto with LSD
DA 1500/1600 4.125 Type 3 swingaxle up to 8/68*
DB 1500/1600 4.125 Ditto with LSD*
DC 1500/1600 4.125 Type 3 with IRS from 8/68
DD 1500/1600 4.125 Ditto with LSD
*Note that reinforced swingaxle design was available
on post - 8/68 Type 3 models as an option (M263)
Enter the name for this tabbed section: T25/T3/Vanagon Diesel Engine Codes
Upright Diesels - Naturally Aspirited
CS 1.6l from 81 to 87 37kw / 50bhp.
KY 1.7l from 87on 42Kw / 57bhp.
Upright Diesel - Turbo Charged
JX 1.6l from 85on 51Kw / 70bhp.
AAZ 1.9l fitted to Passat and some Golfs (75HP) - Not Standard Fitment
ADE 1.9l Industrie-Motor (equiv to AAZ (1.9 TD) - Not Standard Fitment
Turbo Diesel Injected - TDI
1Y 1.9l 4-cyl fitted to Passat and some Golfs (75HP) - Not Standard fitment
ADG 1.9l 4-cyl Industrie-Motor (equivalent to 1Y 1.9 NA) - Not Standard Fitment
CS 1.6l from 81 to 87 37kw / 50bhp.
KY 1.7l from 87on 42Kw / 57bhp.
Upright Diesel - Turbo Charged
JX 1.6l from 85on 51Kw / 70bhp.
AAZ 1.9l fitted to Passat and some Golfs (75HP) - Not Standard Fitment
ADE 1.9l Industrie-Motor (equiv to AAZ (1.9 TD) - Not Standard Fitment
Turbo Diesel Injected - TDI
1Y 1.9l 4-cyl fitted to Passat and some Golfs (75HP) - Not Standard fitment
ADG 1.9l 4-cyl Industrie-Motor (equivalent to 1Y 1.9 NA) - Not Standard Fitment
Enter the name for this tabbed section: T25/T3/Vanagon Petrol Engine Codes
Air-cooled - Type 1 engine - Boxer configuration (Flat 4)
CT 1,6l 4-cyl. Flat4 air-cooled 79 to 82 37Kw / 50bhp.
Air Cooled - Type 4 engine - Boxer configuration (Flat 4)
CU 2,0l 4-cyl. Flat4 air-cooled 79 to 82 51Kw / 70bhp.
CV 2,0l 4-cyl. Flat4 air-cooled 79 to 82 51kw / 70bhp injection
Water-cooled - 4 cylinder Boxer configuration (Flat 4)
DF 1,9l from 82on 44Kw / 60bhp
DG 1,9l from 82on 57Kw / 78bhp
GW 1,9l with injection 83 to 85 66kw / 90bhp
MV 2,1l with injection and cat from 85on 70kw / 95bhp or 89bhp with auto-box.
DJ 2,1l with injection from 85on 82kw / 112bhp
SS 2,1l with injection and cat from 89on 68kw / 92bhp
EY 1,9l from 85on 40kw / 55bhp
SP 1,9l from 86on 54kw / 73bhp for Swiss export
DH 1,9l with injection and cat from 84 to 85 61kw / 83bhp.
SR 2,1l with injection and cat from 86on 64kw / 87bhp for Swiss export
CT 1,6l 4-cyl. Flat4 air-cooled 79 to 82 37Kw / 50bhp.
Air Cooled - Type 4 engine - Boxer configuration (Flat 4)
CU 2,0l 4-cyl. Flat4 air-cooled 79 to 82 51Kw / 70bhp.
CV 2,0l 4-cyl. Flat4 air-cooled 79 to 82 51kw / 70bhp injection
Water-cooled - 4 cylinder Boxer configuration (Flat 4)
DF 1,9l from 82on 44Kw / 60bhp
DG 1,9l from 82on 57Kw / 78bhp
GW 1,9l with injection 83 to 85 66kw / 90bhp
MV 2,1l with injection and cat from 85on 70kw / 95bhp or 89bhp with auto-box.
DJ 2,1l with injection from 85on 82kw / 112bhp
SS 2,1l with injection and cat from 89on 68kw / 92bhp
EY 1,9l from 85on 40kw / 55bhp
SP 1,9l from 86on 54kw / 73bhp for Swiss export
DH 1,9l with injection and cat from 84 to 85 61kw / 83bhp.
SR 2,1l with injection and cat from 86on 64kw / 87bhp for Swiss export
Enter the name for this tabbed section: T25/T3/Vanagon Transmissions (Gearboxes)
This info is available quite comprehensively on the Brickwerks site so rather than repeat it here in its entirety here is a link - http://www.brick-yard.co.uk/VehicleSpecific/T3/info/gbx.htm