allpar, the Chrysler - Dodge - Plymouth - Jeep site

Mopar Engine Codes (version 1.4)

Engine type is coded in Chrysler VINs beginning in 1966. Prior to 1966, the VIN only distinguished a 6 cylinder model from an 8 cylinder model.

Chrysler used two VIN systems. The first, used from 1966-1980, has 13 digits, and the engine code is the 5th digit. The second has 17 digits and the engine code is the 8th digit. As usual, there's an exception. Chrysler's TC by Maserati has the engine VIN digit in the fifth position.

(Jeep used the AMC system until a few years after Chrysler acquired it. Jeep then switched to the Chrysler conventions. See below.)

Knowing the year of the car is often necessary to determine which engine code to use. The year is coded in the 6th (13-digit system) or the 10th digit. (In both cases, the year code is 8 characters from the end of the VIN, or 2 characters before the six-digit sequential build number.) >From 1966 to 1979, the last number of the calendar year was used, and 6 through 9 were repeated (0 *was* used for 1970). Beginning in 1980, the year was coded alphabetically, beginning with 'A' and skipping 'I,' 'O,' and 'Q.' (H=1987, J=1988, N=1992, P=1993, R=1994, etc.)

This list does not include Dodge truck engine codes, which, except for the minivans, are mostly different than those for cars. In fact, the truck VINs use a different system, and may even omit the engine code. (The Jeep list includes all codes from 1981, regardless of usage.)

Code Engine Years Used
A 170-1 1966-69
1.7-2 1978-82 (VW)
1.6-2 1983-86 (Peugeot)
2.2 T2 1987-89 (including '89 TC, 5th VIN digit)
2.2 T3 1991-93
B 225-1 1966-69
198-1 1970-74
2.2-2 1981-82
1.7-2 1983
C Special Order 6 cyl 1966-69
225-1 1970-80
2.2-2 1983-87
2.2 T4 1990
D 273 1966 (2 or 4 bbl)
273-2 1967-69
225-2 1977-80
2.6-2 1981-82
2.2 EFI 1985-94
E 318-2 1966
273-4 1967
Special order 6 cyl 1970-80
225-1 1981-82
2.2 T1 1984-88
488 V10 1992-
F 361 1966 (2 or 4 bbl)
318-2 1967-69
225-1 HD 1981-82
2.2-2 HP 1984-86
3.5 1993-
G 383 1966 (2 or 4 bbl)
383-2 1967-69
318-2 1970-80
225-2 1981-82
2.6-2 1983
H 426 Hemi 1966
383-4 HP 1967-69
340-4 1970-73
318-4 1978-80
225-1 1983
J 440 1966
426 Hemi 1967-69
340-6 1970-71
360-4 1974-79
225-1 HD 1983
2.5 T1 1989-91
K Special Order V8 1966
440-4 1967-69
360-2 1971-80
318-2 1981-82
225-2 1983
2.5 EFI 1986-95
L 440-4 HP 1967-69
383-2 1970-71
360-4 HP 1974-78
318-2 HD 1981-82
M Special Order V8 1967
440-6 1969
400-2 1972-76
318-4 1981-82
N 383-4 1970-71
400-4 1974-78
318-4 HD 1981-82
P 340-4 1968-69
400-4 1972-73
400-4 HP 1974-78
318-2 1983-89
R 426 Hemi 1970-71
318-4 1983-87
2.2 T 1989-90 TC only--5th digit (DOHC Maserati head)
2.0 1990- DSM Eclipse/Talon only
3.3 1990- non-LH
S 318-4 Police 1983-89
3.0 1990-91 TC code ONLY--5th digit (same Mitsu 3.0)
T 440-4 1970-77
1.8 1990- DSM Eclipse ONLY
3.3 1993- LH
U 440-4 HP 1970-77
2.0 T 1990- DSM Eclipse/Talon ONLY
3.0 1990-
V 440-6 1970-72
X 2.2 LPG 1987
Z Special Order V8 1970-78
318 LPG 1987
3 3.0 1989-
4 318-4 HD 1984-89
7 318 LPG 1987
8 2.2-2 HD 1984-86

Jeep

Engine code in VIN:

  • 4th digit 1981-1988
  • 8th digit 1989-

Codes from 1981-present: Unless marked as diesel or EFI, all listed engines used 2 barrel carburetors.

CODE B Engine and Source Years Used and Notes
B 2.5 Pontiac2.1 diesel 1981
2.1 diesel 1985-87
C 258 AMC 1981-88
E 2.5 EFI AMC 1989-90 unleaded gas
F 145 diesel 1981-83
G 2.5 EFI AMC 1989-90 leaded gas
H 304 AMC 1981-83
2.5 EFI AMC 1986-88
 
L 232 AMC 1981-83
4.0 EFI AMC 1989-90 unleaded gas
 
M 4.0 EFI AMC 1987-88
258 AMC 1989-90 low compression
 
N 360 AMC 1981-88
P 2.5 EFI AMC 1991-
S 4.0 EFI AMC 1991-
T 258 AMC 1989-90

We are not responsible for the consequences of actions taken based on this site, and make no guarantees regarding validity, accuracy, or applicability of information, predictions, or advice of any sort. Please read the terms of use and privacy policy. Copyright © 1994-2000, David Zatz; copyright © 2001-2014, Allpar LLC (except as noted, and press/publicity materials); all rights reserved. Dodge, Jeep, Chrysler, Ram, Plymouth, and Mopar are trademarks of Fiat Chrysler Automobiles.