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  1. Home
  2. GMC Trucks
  3. 2003
  4. Sierra 2500 2WD (New Style)
  5. Engine V8

2003 GMC Trucks Sierra 2500 2WD (New Style) engine v8 parts catalog

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Key, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 10166345
  • Quantity in car: 32
  • Valve stem
  • Usage: CK1, 2 (LM7)

$1.67—2.26

Available in 38 shops

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Cap, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 10166344
  • Quantity in car: 16
  • Valve spring
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4), C1, 2 (LM7), CK2, 3 (LQ4), CK1, 2 (LM7)

$2.40—4.59

Available in 38 shops

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Spring, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12589774
  • Quantity in car: 16
  • Valve
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4), C1, 2 (LM7), CK2, 3 (LQ4), CK1, 2 (LM7)

$2.39—2.69

Available in 2 shops

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Seal kit, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12482062
  • Quantity in car: 1
  • Exhaust valve stem oil (22.8mm) (uses integrated seal and spring shim) (first design see 12457652)
  • Usage: CK1, 2 (LM7) (2ND DES), CK2, 3 (LQ4) (2ND DES)

$20.74—23.33

Available in 2 shops

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Seal kit, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12482062
  • Quantity in car: 1
  • Exhaust valve stem oil (22.8mm)
  • Usage: CK1, 2, 3 (LQ4), C1, 2 (LM7), CK1, 2 (LM7)

$20.74—23.33

Available in 2 shops

Add to cart

Seal kit, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12482063
  • Quantity in car: 1
  • Intake valve stem oil (14.4mm) (uses integrated seal & spring shim) (first design see 12533586)
  • Usage: CK1, 2 (LM7) (2ND DES), CK2, 3 (LQ4) (2ND DES)

$18.14—21.45

Available in 38 shops

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Seal kit, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12482063
  • Quantity in car: 1
  • Intake valve stem oil (with spring shim) (14.4mm)
  • Usage: C1, 2 (LM7), CK1, 2, 3 (LQ4), CK1, 2 (LM7)

$18.14—21.45

Available in 38 shops

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Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12572717
  • Quantity in car: 1
  • Usage: CK1, 2, 3 (LQ4), CK1, 2 (LM7, M30)

$4.13—4.32

Available in 2 shops

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Wire, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12192133
  • Quantity in car: 8
  • Spark plug (used with coil stamped 12558693, 10.5in) (7mm diameter, 10.5"long) (without heat shield) (ignition cable)
  • Usage: CK1, 2 (LM7)

$8.57—10.67

Available in 38 shops

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Wire, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12192133
  • Quantity in car: 8
  • Spark plug (10.5in) (7mm diameter, 10.5"long) (without heat shield) (ignition cable) (used with coil stamped 12558693)
  • Usage: CK1, 2, 3 (LQ4)

$8.57—10.67

Available in 38 shops

Add to cart

Wire, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12192195
  • Quantity in car: 8
  • Spark plug (7mm diameter, 9.2"long) (without heat shield) (ignition cable) (used with coil stamped 19005218, for first design see 12192133)
  • Usage: CK1, 2 (LM7) (2ND DES), CK2, 3 (LQ4) (2ND DES)

$9.31—10.47

Available in 2 shops

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Wire, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12192195
  • Quantity in car: 8
  • Spark plug (9.2in) (7mm diameter, 9.2"long) (without heat shield) (ignition cable) (used with coil stamped 19005218)
  • Usage: CK1, 2 (LM7)

$9.31—10.47

Available in 2 shops

Add to cart

Wire, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12192195
  • Quantity in car: 8
  • Spark plug (9.2in) (7mm diameter, 9.2"long) (without heat shield) (ignition cable)
  • Usage: CK1, 2, 3 (LQ4)

$9.31—10.47

Available in 2 shops

Add to cart

Wire kit, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 88894393
  • Quantity in car: 1
  • Usage: CK1, 2, 3 (LQ4), CK1, 2 (LM7)

$61.05—63.69

Available in 2 shops

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Wire kit, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 88894394
  • Quantity in car: 1
  • Spark plug (7mm diameter, 10.5in long) (contains 8 wires) (used with coils stamped 12558693-melco coil)
  • Usage: CK1, 2 (LM7)

$67.20—70.11

Available in 2 shops

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Wire kit, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 88894394
  • Quantity in car: 1
  • Usage: CK1, 2, 3 (LQ4)

$67.20—70.11

Available in 2 shops

Add to cart

Plug, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 11562126
  • Quantity in car: 2
  • Usage: CK1, 2, 3 (LQ4), CK1, 2 (LM7), C1, 2 (LM7), CK1, 2 (LM7), CK2, 3 (LQ4)

$1.80—2.47

Available in 38 shops

Add to cart

Spark plug, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12621258
  • Quantity in car: 8
  • (gap 0.040) (do not change spark plug gap from .040) (iridium)
  • Usage: CK1, 2, 3 (LQ4), CK1, 2, 3 (LQ4), CK1, 2 (LM7), CK1, 2 (LM7)

$5.60—5.90

Available in 2 shops

Add to cart

Sensor, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12608814
  • Quantity in car: 1
  • Engine coolant temp (2-way male)
  • Usage: CK1, 2, 3 (LM7, LQ4, LQ9, LR4, L59), CK1, 2, 3 (LM7, LQ4, LQ9, LR4, L59), CK1, 2, 3 (LR4, LM7, LQ4), CK1, 2, 3 (LR4, LM7, LQ4)

$17.89—19.26

Available in 2 shops

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Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12558295
  • Quantity in car: 8
  • Exhaust (standard)
  • Usage: CK1, 2, 3 (LQ4, KL5)

$32.86—51.85

Available in 38 shops

Add to cart

Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12562954
  • Quantity in car: 8
  • Exhaust (0.015" oversize)
  • Usage: CK1, 2 (LM7), C1, 2 (LM7), CK2, 3 (LQ4), CK1, 2 (LM7), CK1, 2, 3 (LQ4) (EXC KL5)

$32.25—36.11

Available in 2 shops

Add to cart

Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12563064
  • Quantity in car: 8
  • Exhaust (standard)
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4) (EXC KL5), C1, 2 (LM7), CK2, 3 (LQ4) (EXC KL5), CK1, 2 (LM7)

$16.12—18.05

Available in 2 shops

Add to cart

Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12562950
  • Quantity in car: 8
  • Intake (0.015" oversize)
  • Usage: CK1, 2 (LM7)

$?

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Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12562952
  • Quantity in car: 8
  • Intake (0.015" oversize)
  • Usage: CK1, 2, 3 (43) (LQ4, MT1) (EXC KL5), CK2, 3 (LQ4, MW3)

$107.86—121.37

Available in 2 shops

Add to cart

Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12563063
  • Quantity in car: 8
  • Intake (standard)
  • Usage: CK1, 2, 3 (LQ4, MT1) (EXC KL5), CK2, 3 (LQ4, MW3)

$16.89—20.28

Available in 38 shops

Add to cart

Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12564338
  • Quantity in car: 8
  • Intake (standard)
  • Usage: CK1, 2, 3 (LQ4, MT1, KL5)

$14.58—20.74

Available in 38 shops

Add to cart

Valve, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12564494
  • Quantity in car: 8
  • Intake (standard)
  • Usage: CK1, 2 (LM7), C1, 2 (LM7), CK1, 2 (LM7)

$17.30—34.14

Available in 38 shops

Add to cart

Bolt, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12551163
  • Quantity in car: 4
  • Valve lifter guide (m6x1.0x19)
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4), C1, 2 (LM7), CK1, 2 (LM7)

$1.72—2.11

Available in 38 shops

Add to cart

Gasket, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12558940
  • Quantity in car: 2
  • Cylinder head
  • Usage: CK1, 2 (LM7)

$26.08—30.91

Available in 38 shops

Add to cart

Gasket, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12575329
  • Quantity in car: 2
  • Cylinder head
  • Usage: CK1, 2 (LM7)

$24.98—49.35

Available in 38 shops

Add to cart

Gasket, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12589227
  • Quantity in car: 2
  • Cylinder head
  • Usage: CK1, 2, 3 (LQ4)

$31.78—81.84

Available in 38 shops

Add to cart

Rod, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 10238852
  • Quantity in car: 16
  • Valve push
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4), C1, 2 (LM7), CK2, 3 (LQ4), CK1, 2 (LM7)

$12.62—16.53

Available in 38 shops

Add to cart

Guide, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12551162
  • Quantity in car: 4
  • Valve lifter (accommodates 4 valve lftrs each, without side grooves)
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4), C1, 2 (LM7), CK2, 3 (LQ4), CK1, 2 (LM7)

$3.69—4.15

Available in 2 shops

Add to cart

Lifter, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 17122490
  • Quantity in car: 16
  • Valve (hydraulic, roller, non-active fuel management lifter)
  • Usage: CK1, 2 (LM7), CK2, 3 (LQ4), CK1, 2 (LM7)

$32.74—49.88

Available in 38 shops

Add to cart

Lifter, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 17122490
  • Quantity in car: 16
  • Valve (hydraulic, roller, non-active fuel management lifter)
  • Usage: CK1, 2, 3 (LQ4)
  • A Service Bulletin Applies To This Part Number. Per Gm Service Policies And Procedures, Failure To Follow Bulletin Information May Result In The Rejection Of A Warranty Claim.

$32.74—49.88

Available in 38 shops

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Pinion, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12570326
  • Quantity in car: 4
  • Cylinder head location
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4), CK2, 3 (LQ4), C1, 2 (LM7), CK1, 2 (LM7)

$2.86—5.91

Available in 38 shops

Add to cart

Plug, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12553191
  • Quantity in car: 1
  • Cylinder head core hole (m12x1.5x21.2) (hexagon, socket)
  • Usage: CK1, 2 (LM7), CK1, 2, 3 (LQ4), C1, 2 (LM7), CK2, 3 (LQ4), CK1, 2 (LM7)

$3.16—5.16

Available in 2 shops

Add to cart

Cover, engine assembly v8 cylinder head and related parts (lr4/4.8v, lm7/5.3t, lq4/6.0u)

  • OEM part number: 12575742
  • Quantity in car: 1
  • Usage: CK1, 2 (LM7), CK2, 3 (LQ4), C1, 2 (LM7)

$143.69—254.39

Available in 38 shops

Add to cart

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