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2004 Chevrolet Silverado 1500

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EnginePer VehicleFit NotesFitment Notes
2004 Chevrolet Silverado 1500 equipped with
5.3L V8 FULL HYBRID EV-Gas FHEV OHV
 
1
 
U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
EXCEPT FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CRUISE CONTROL(K34)
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
5.3L V8 FULL HYBRID EV-Gas FHEV OHV U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
EXCEPT FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CRUISE CONTROL(K34)
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2U,U2W, U2H,WJY,WJZ,WKF,WKM,WKL,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,
EXCEPT STRG COL(NP7)
CODES CONT'D:YAT,YAY,YBC,YAK,Y4N
Mfr Code: 4L65-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2U,U2W, U2H,WJY,WJZ,WKF,WKM,WKL,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,
EXCEPT STRG COL(NP7)
CODES CONT'D:YAT,YAY,YBC,YAK,Y4N
Mfr Code: 4L65-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT STRG COL(NP7)
CODES CONT'D: Y4N
Crew Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT STRG COL(NP7)
CODES CONT'D: Y4N
Crew Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT STRG COL(NP7)
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT STRG COL(NP7)
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
EXCEPT STEERING WHEEL ACCESSORY CONTROLS(UK3)
CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS)
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
EXCEPT STEERING WHEEL ACCESSORY CONTROLS(UK3)
CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS)
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT STRG COL(NP7)
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT STRG COL(NP7)
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2U,U2W, U2H,WJY,WJZ,WKF,WKM,WKL,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,
EXCEPT STRG COL(NP7)
CODES CONT'D:YAT,YAY,YBC,YAK,Y4N
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV U1C,T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2U,U2W, U2H,WJY,WJZ,WKF,WKM,WKL,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,
EXCEPT STRG COL(NP7)
CODES CONT'D:YAT,YAY,YBC,YAK,Y4N
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
EXCEPT CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
CHASSIS PKG SMOOTH RIDE (ZQ1), PREMIUM SMOOTH RIDE CHAS PKG(ZW7), CHAS PKG(Z83), Chassis Package(Z85)
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV EXCEPT CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
CHASSIS PKG SMOOTH RIDE (ZQ1), PREMIUM SMOOTH RIDE CHAS PKG(ZW7), CHAS PKG(Z83), Chassis Package(Z85)
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), ACTIVE BRAKE CONTROL(JL4), STRG COL(NP7), FOUR WHEEL STEERING(NYS), DECOR PKG(WBH)
CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PERFORMANCE PKG(Z60)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), ACTIVE BRAKE CONTROL(JL4), STRG COL(NP7), FOUR WHEEL STEERING(NYS), DECOR PKG(WBH)
CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PERFORMANCE PKG(Z60)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
EXCEPT Two Inch Body Raise I.D.(HVY), CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV EXCEPT Two Inch Body Raise I.D.(HVY), CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
HIGH OUTPUT ENGINE PKG(B4V), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60)
EXCEPT SPRING SPECIAL SALES PKG(B2E), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV HIGH OUTPUT ENGINE PKG(B4V), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60)
EXCEPT SPRING SPECIAL SALES PKG(B2E), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
SPRING SPECIAL SALES PKG(B2E), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60), PROVISION FOR HEAVY DUTY TRAILER EQUIPMENT(Z82)
EXCEPT HIGH OUTPUT ENGINE PKG(B4V), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV SPRING SPECIAL SALES PKG(B2E), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60), PROVISION FOR HEAVY DUTY TRAILER EQUIPMENT(Z82)
EXCEPT HIGH OUTPUT ENGINE PKG(B4V), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PERFORMANCE PKG(Z60)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PERFORMANCE PKG(Z60)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L65-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), STRG COL(NP7), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Crew Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), STRG COL(NP7), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Crew Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), STRG COL(NP7), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), STRG COL(NP7), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Mfr Code: NV3500
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Mfr Code: NV3500

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
EXCEPT CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
CHASSIS PKG SMOOTH RIDE (ZQ1), PREMIUM SMOOTH RIDE CHAS PKG(ZW7), CHAS PKG(Z83), Chassis Package(Z85)
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV EXCEPT CRUISE CONTROL(K34), FOUR WHEEL STEERING(NYS), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
CHASSIS PKG SMOOTH RIDE (ZQ1), PREMIUM SMOOTH RIDE CHAS PKG(ZW7), CHAS PKG(Z83), Chassis Package(Z85)
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), ACTIVE BRAKE CONTROL(JL4), STRG COL(NP7), FOUR WHEEL STEERING(NYS), DECOR PKG(WBH)
CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PERFORMANCE PKG(Z60)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), ACTIVE BRAKE CONTROL(JL4), STRG COL(NP7), FOUR WHEEL STEERING(NYS), DECOR PKG(WBH)
CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PERFORMANCE PKG(Z60)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
EXCEPT Two Inch Body Raise I.D.(HVY), CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV EXCEPT Two Inch Body Raise I.D.(HVY), CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
HIGH OUTPUT ENGINE PKG(B4V), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60)
EXCEPT SPRING SPECIAL SALES PKG(B2E), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV HIGH OUTPUT ENGINE PKG(B4V), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60)
EXCEPT SPRING SPECIAL SALES PKG(B2E), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
SPRING SPECIAL SALES PKG(B2E), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60), PROVISION FOR HEAVY DUTY TRAILER EQUIPMENT(Z82)
EXCEPT HIGH OUTPUT ENGINE PKG(B4V), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV SPRING SPECIAL SALES PKG(B2E), CRUISE CONTROL(K34), CHASSIS PERFORMANCE PKG(Z60), PROVISION FOR HEAVY DUTY TRAILER EQUIPMENT(Z82)
EXCEPT HIGH OUTPUT ENGINE PKG(B4V), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), STRG COL(NP7), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV STEERING WHEEL ACCESSORY CONTROLS(UK3), MANUAL SELECT DAMPING CHASSIS PACKAGE(ZX3), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT SPRING SPECIAL SALES PKG(B2E), HIGH OUTPUT ENGINE PKG(B4V), STRG COL(NP7), FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PKG SMOOTH RIDE (ZQ1), PREMIUM SMOOTH RIDE CHAS PKG(ZW7), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E
RWD
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV STEERING WHEEL ACCESSORY CONTROLS(UK3), CHASSIS PKG SMOOTH RIDE (ZQ1), PREMIUM SMOOTH RIDE CHAS PKG(ZW7), CHAS PKG(Z83), Chassis Package(Z85)
EXCEPT FOUR WHEEL STEERING(NYS)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Standard Cab Pickup
2 Doors
Mfr Code: 4L60-E
RWD

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV CRUISE CONTROL(K34), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Mfr Code: 4L60-E

1 Per Vehicle
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV
 
1
 
EXCEPT STRG COL(NP7), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CRUISE CONTROL(K34), CHASSIS PKG(Z55)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Wheel Base 143.5 In.
Mfr Code: 4L60-E
 
2004 Chevrolet Silverado 1500 equipped with
6.0L V8 Gas OHV,
5.3L V8 Gas OHV,
5.3L V8 FULL HYBRID EV-Gas FHEV OHV,
5.3L V8 Flex OHV,
4.8L V8 Gas OHV,
4.3L V6 Gas OHV EXCEPT STRG COL(NP7), STEERING WHEEL ACCESSORY CONTROLS(UK3)
CRUISE CONTROL(K34), CHASSIS PKG(Z55)
CODES:T8P,T8U,T9C,U1M,U1S,U1T,U1U,U1W,U2D,U2F,U2K,U2M,U2R,U2S,U2W,WJY,WJZ,WKF,WKM,WKT,WLK,WLL,XTP,XZT,Y4K,Y4M,Y4P,Y4R,YAA,YAB,YAJ,YAR,YAT,YAY,YBC
CODES CONT'D: Y4N
Extended Cab Pickup
4 Doors
Wheel Base 143.5 In.
Mfr Code: 4L60-E

1 Per Vehicle
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