EPA Engine Family Name Format

Example
Family Name

3VPXL12.1ABA

Columns

Description

Model Year

2003

1

Model Year

Manufacturer

AB VOLVO PENTA

2 - 4

Manufacturer Code

Family Type

Nonroad CI family

5

Family Type

Displacement

12.1

6 - 9

Displacement in liters

Sequence

ABA

10 - 12

Sequence Characters

Code

Model Year

Code

Manufacturer

Code

Family Type

A

1980

VPX

AB Volvo Penta

A

California only medium duty family

B

1981

6AX

American Jawa Ltd.

E

Evaporative family

C

1982

X6X

Atlantis Diesel Engines

R

Evaporative/Refueling family

D

1983

AMY

Atlas Machinery

H

Heavy-duty engine family

E

1984

X9X

Case Corporation

T

Light-duty truck family

F

1985

CPX

Caterpillar Inc.

V

Light-duty vehicle family

G

1986

CRX

Chrysler

M

Marine engine family

H

1987

CEX

Cummins Engine Company

C

Motorcycle family

J

1988

DWX

Daewoo Heavy Industries Co. Ltd

L

Nonroad CI family

K

1989

MBX

Daimler-Benz AG

N

Nonstandard family type

L

1990

MBX

DaimlerChrysler AG

S

Small SI nonroad family

M

1991

JDX

Deere Power Systems Group of Deere & Company

N

1992

DDX

Detroit Diesel Corporation

P

1993

DZX

Deutz Corporation

R

1994

ETE

Eicher Tractors (A Unit of Eicher Ltd.)

S

1995

AEL

Escorts Ltd.

T

1996

FMX

Ford Motor Company

V

1997

GNX

Generac Power Systems Inc.

W

1998

GMX

General Motors Corporation

X

1999

HER

Hercules Engine Company

Y

2000

HMX

Hino Motors, Ltd.

1

2001

NVX

International Truck and Engine Corporation
(formerly Navistar)

2

2002

H3X

Ishikawajima-Shibaura Machinery Co., Ltd.

3

2003

SZX

Isuzu Motors Limited

4

2004

VEX

Iveco  N.V.

5

2005

KMX

Kia Motors Corporation

6

2006

KOE

Kirloskar Oil Engines Ltd.

7

2007

KLX

Komatsu

8

2008

KBX

Kubota Corporation

9

2009

LHA

Liebherr Machines
Bulle SA

L5X

Lister-Petter

LBD

Lombardini F.i.M. S.p.A.56

MML

Mahindra & Mahindra Ltd.

MNX

MAN Nutzfahrzeuge

TKX

Mazda Motor Corporation

MBX

Mercedes-Benz, AG

BSM

Minsk Motor Plant

MTX

Mitsubishi Motors Corporation

MVX

Mitsubsihi Heavy Industries, Ltd.

HZX

Motorenfabrik Hatz GmbH & Co. KG

MUX

MTU

MWM

MWM Motores Diesel Ltda.

NVX

Navistar
International Trans. Corp.

NHX

New Holland

NDX

Nissan Diesel Motor Co., Ltd.

PKX

Perkins Engine

PEX

Peugeot Citroen
Moteurs

R3X

Renault VI

TUS

S.C. "TRACTORUL UTB" S.A.

FGX

Same Deutz Fahr Group S. p. A.

SAX

Scania  A.B.

Y9X

Scania  A.B.

SID

Sisu Diesel Inc.

TAL

Toyoda Autmatic Loom Works Ltd.

V5X

VM  Motori S.p.A.

VWX

Volkswagen

VSX

Volvo Construction Equipment Components AB

WMY

Wall Machinery Inc.

X7X

Westerbeke Corporation

WPX

Wis-Con Total Power

YDX

Yanmar Diesel Engine Co.

Notes:

USEPA, Certification Guidance
for Heavy Duty On-Highway and Nonroad CI Engines, 40 CFR Part 86 and Part 89, Appendix D - EPA Standard Engine and Evaporative Family
Names, 1999.