C4 Regular Production Options
The C4 Corvette Regular Production Options (RPO) list is lengthy and each model year brought changes, additions and deletions. (The RPO list for a specific vehicle can be found on the inside of the console storage compartment lid in the form of a sticker, can often be found on a stick attached to the gas tank or a "build sheet" can be purchased from the National Corvette Museum - 800 -53-vette).
Some of the basic RPO options that remained more or less constant throughout the life of the C4 generation Corvette were as follows:
RPO | Description |
ACI | Passengers 6 Way Power Seat |
AC3 | Drivers 6 way Power Seat |
AS8 | Restraint System Manual |
CC3 | Removable Roof (Transparent) |
CF7 | Removable Roof Non-Transparent) |
C2L | Removable Roof Package (Both Tops) |
C49 | Defogger, Rear Window, Electronic |
C60 | Manually Controlled Air Conditioning |
C68 | Electronicically Controlled Air Conditioner |
DL8 | Heated Outside Mirrors |
D74 | Vanity Inside Visor |
FE1 | Suspension, Soft Ride |
FE7 | Suspension, Heavy Duty |
FX3 | Ride and Handling, Electronic |
GH0 | Rear Axle, 3.54 Ratio |
GM1 | Rear Axle, 2.59 Ratio |
GU2 | Rear Axle, 2.73 Ratio |
GW4 | Rear Axle, 3.31 Ratio |
G44 | Rear Axle, 3.07 Ratio |
G92 | Rear Axle, Performance Ratio |
JL9 | Brakes, Anti-Lock Front and Rear Disc |
J55 | Brakes, Heavy Duty |
KC4 | Cooler, Engine Oil |
K09 | Generator (Alternator), 120 Amp |
K68 | Generator (Alternator), 105 Amp |
MD8 | Transmission, Auto, 4 Speed THM 700-R4 |
ML9 | Transmission, Manual, 6 Speed, ZF |
NK4 | Steering Wheel, Sport Leather |
UJ6 | Indicator, Low Tire Pressure Warning |
UM6 | Radio, AM/FM Stereo, Seek & Scan, Auto Rev cassette, Clock, ETR |
UQ4 | Speaker System, Bose |
UU8 | Radio, AM/FM Stereo, Cassette, Dolby, Clock, ETR |
U19 | Cluster, Kilometers & Miles |
U52 | Cluster, Electronic |
V01 | Radiator, Heavy Duty |
Z51 | Performance Handling |
Z6A | Defogger, Rear Window and Outside Mirrors |
24S | Roof, Removable Blue Transparent |
K05 | Heater, engine Block |
L83 | EFI Engine, 5.7L V8 (1984 Only) |
L98 | TPI Engine, 5.7L V8 |
LT1 | TPI Engine, 5.7L V8 |
LT4 | TPI Engine, 5.7L V8 |
LT5 | TPI Engine, 5.7L V8 |