GM Service Manual Online
For 1990-2009 cars only

The production/process codes provide the description of the Regular Production Options (RPOs) used on the vehicle. The RPO list is printed on the Service Parts Identification Label. The following is a list of the RPO abbreviations and the description of each:

RPO

Description

AJ1

Window Tinted, Deep Tint

AM6

Seat, Front Split, 3 Passenger, Center Arm Rest

AU3

Power Door Locks

AV5

Seat, Front Bucket, High Back

A26

Window, European Glazing, All

A28

Window, Rear Full Width, Sliding

A31

Window Power Operated, Side

A52

Seat, Front Bench

BAG

Parts Package Export

BG9

Covering Floor Rubber

B30

Covering, Floor Carpet

B32

Covering Floor Mats, Front Auxiliary

B84

Molding B/S Exterior

C42

HVAC System Heater Deluxe, Outside Air

C5A

GVW Rating 4900 lbs

C5D

GVW Rating 4600 lbs

C5T

GVW Rating 4200 lbs

C6F

GVW Rating 5150 lbs

C60

HVAC System Air Conditioner, Front Manual Controls

DH6

Mirrors, Inside Front Van, Sunshade

DK2

Mirror, Outside Remote Control, Electric, Heated

D44

Mirror, Outside, Color

D55

Console Front Compartment, Floor

EVA

Test DVT, Evaporator Emission Rquirement

EX2

Export Isuzu

E24

Door, Side Cargo, Hinged

E62

Body Equipment Stepside

E63

Body Equipment Fleetside

FE9

Certification Emission, Federal

FF4

Arm Torsion Bar Spring Adjustment (C)

FF5

Arm Torsion Bar Spring Adjustment (D)

FK2

Arm Torsion Bar Spring Adjustment (A)

FK3

Arm Torsion Bar Spring Adjustment (B)

GT4

Axle Rear 3.73 Ratio (Dup with 5X1)

GT5

Axle Rear 4.10 Ratio (Dup with GT8)

GU4

Axle Rear 3.08 Ratio

GU6

Axle Rear 3.42 Ratio

G80

Axle Positraction Limited, Slip

JC1

Brake Vacuum Power, 4 Wheel DISC, 5500 lbs

JM3

Booster Brake, 240mm Tandem, High Flow

JNG

Shaft Propeller, Painted

K05

Engine Block Heater

K18

Reactor System, Air Injection, Electric

K34

Cruise Control Automatic, Electronic

K42

Air Cleaner Off-Road Package

K53

Fuel Sender Assembly, Robust Fuel System

K60

Generator, 100 Amp

L43

Engine, Flexible Fuel, 4 Cylinder, 2.2L, MFI

L35

Engine, Gas, 6 Cylinder,4.3L, CPI, V6

MW2

Transmission, Manual 5-Speed, 76mm, 3.96 1st, .83 5th, O/D

M30

Transmission, Automatic 4 Speed, 4L60E, Electronic

M50

Transmission, Manual 5-Speed, 85mm, 3.49 1st, O/D

NB8

Emission Override California System

NC1

Emission System California LEV

NF2

Emission System Federal, Tier 1

NF4

Emission System Clean Fuel, Fleet

NF7

Emission System Federal NLEV

NG1

Certification Emission,Geographically Restricted Registration

NN8

Emission Override Unleaded Fuel, Export

NP1

Transfer Case Electric Shift Control, Two Speed

NP6

{rpvosopms Tramsfer Case, Export

N33

Steering Column Tilt Type

N40

Steering Power, Non-Variable Ration

N60

Wheel, Aluminum, Painted

N90

Wheel 15 x 7, Aluminum Cast, 4.75 inch Bolt

N96

Wheel 16 x 8, Cast Aluminum

PA3

Wheel 15 x 7, Aluminum Styled

PH1

Wheel 15 x 7, Steel

QBF

Tire, P235/70R15 Black Wall, All Season

QCA

Tire, P205/75R15, White Wall, All Season

QCB

Tire P235/55R16, Black Wall, All Season

QCE

Tire, P205/75R15/N Black Wall, All Season

QEB

Tire P235/75R15/N White Wall, All Season

QJJ

Tire 31X10.50R15LT/C Black Wall, All Season

QLN

Tire 235/70R15-103H Black Wall, All Season

T1J

Equipment Export Material Regulatory

T61

Lighting, Daytime Running

UA1

Battery, High Capacity, Wet

UC2

Speedometer, Kilometer and Miles, Kilometer Odometer

UL2

European Frequencies

UM7

Radio, AM/FM Stereo, Seek/Scan, Clock

UP8

Radio Provisions for Stereo Instrumentation

UW3

Radio, AM/FM, Stereo, Seek/Scan, Auto Reverse Music Search Cassette, Data System, Clock

U19

Metric Scale Instrument Cluster

U73

Antenna, Fixed, Radio

VF6

Bumper Rear Step

VF7

Bumper Rear Step, Delete

VGC

Protector Film, Paint Etch Preventive

VPH

Vehicle Preparation Overseas Delivery

VP6

Noise Control

VR6

Hook Tie Down

VXS

Vehicle Complete

V10

Provision Options Cold Climate

W86

Equipment Misc Equip for Venez (GMV Controlled)

W87

Parts North American Parts, Sourced Venez

XBF

Tire Front P235/70R15 Black Wall

XCA

Tire Front P205/75R15 White Wall

XCB

Tire Front P235/55R16 Black Wall

XCE

Tire Front P205/75R15/N Black Wall

XEB

Tire Front P235/75R15/N White Wall

XJJ

Tire Front 31X10.50R15LT/C Black Wall

XLN

Tire Front 235/70R15-103H Black Wall

YBF

Tire Rear P235/70R15 Black

YCA

Tire Rear P205/75R15 White

YCB

Tire Rear P235/55R16 Black

YCE

Tire Rear P205/75R15/N Black

YEB

Tire Rear P235/75R15/N White Wall

YJJ

Tire REar 31X10.50R15LT/C Black Wall

YLN

Tire Rear 235/70R15-103H Black Wall

ZAA

Tire, Spare Compact

ZBF

Tire, Spare P235/70R15 Black Wall

ZCA

Tire, Spare P205/75R15 White Wall

ZCE

Tire, Spare P205/75R15/N Black Wall

ZEB

Tire, Spare P235/75R15/N White Wall

ZJJ

Tire, Spare 31X10.50R15LT/C Black Wall

ZLN

Tire, Spare 235/70R15-103H Black Wall

ZL1

Noise Control with less than 8000 LB GVW

ZQ6

Sales Package Driver Convenience III

ZQ8

Chassis Package Sport

ZR2

Chassis Package High Wider Performance, 4x4 Sport

ZW7

Chassis Package Premium Smooth Ride

Z49

Export Canadian Modification, Mandatory Base Equipment

Z83

Chassis Package Solid Smooth Ride

Z85

Chassis Package Increased Capacity

Z89

Conversion Name Plate Isuzu

5P2

Wheel, Aluminum, Special

8A0

Lock Spare Tire, Keyed Two Piece Hoist Shaft