Engine Assembly-Cylinder Head & Related Parts fit your 2003 GMC Sierra 1500 HD 4WD

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2003 GMC Sierra 1500 HD 4WD

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Sierra 1500 Crew Cab Long Box

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Sierra 1500 Crew Cab Long Box

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Transmission - Automatic

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Part No. & Part Description

Price & Qty.

Part No. &
Part Description

BOLT, Hex
11570082
BOLT, HEX FLANGED HEAD,M8X1.25X22,19 THREAD,18 OUTSIDE DIAMETER,10.9,GMW3359(VALVE LIFTER GUIDE RETAINER)
Require Quantity: 04
Package Quantity: 10
$8.00 $5.08
10
Add To Cart
11515755
BOLT, HEXAGON,M8X1.25X16,15 THREAD,18 O.D.,10.9,7114M(EXHAUST MANIFOLD HEAT SHIELD)(TOGETHER WITH 12345493 REPLCS 25534835)
- Require Quantity: 04
- Package Quantity: 1
$13.05
1
Add To Cart
11515756
BOLT, HEX FLANGED HEAD, M8X1.25X20,17THD,18 O.D.,10.9,7114M(SECONDARY AIR INJECTION PIPE)
- Require Quantity: 02
- Package Quantity: 10
$7.50 $4.53
10
Add To Cart
11515763
BOLT, HEX FLANGED HEAD,M10X1.5X16,21.5 O.D.,MACHINE POINT,9.8,7114(EGR VALVE PIPE CLIP)
$7.39 $4.69
1
Add To Cart
11519122
BOLT, HEX FLANGED HEAD,M10X1.5X35,20.15 OUTSIDE DIAMETER,30.5 THREAD,10.9,7114M,INTAKE 6 LOBED SOCKET-T50(ENGINE LIFT REAR BRACKET)
$4.80 $3.04
1
Add To Cart

12608814
SENSOR, Computer Control Sensors, SENSOR,ENGINE COOLANT TEMPERATURE(2-WAY MALE)(MATING CONNECT USE 88987993)(2WAY FEMALE)(1.150)
$57.90 $30.69
1
Add To Cart

12608814
SENSOR, Coolant Temperature (Engine Unit), SENSOR,ENGINE COOLANT TEMPERATURE(2-WAY MALE)(MATING CONNECT USE 88987993)(2WAY FEMALE)
$57.90 $30.69
1
Add To Cart

LIFTER, Engine Valve Lifter
12648846
LIFTER, VALVE(NON-ACTIVE LIFTERS)
Fitting Vehicle Options: CK1,2(LM7), CK1(LR4)
Require Quantity: 16
Package Quantity: 1
Replaced By: 12698945
$49.82 $30.10
1
Add To Cart
17122490
LIFTER, VALVE(HYDRAULIC, ROLLER, NON-ACTIVE FUEL MANAGEMENT LIFTER)(COMPLETE ASSEMBLY)
- Fitting Vehicle Options: CK1(LR4), CK1,2(LM7), CK1,2,3(LQ4), CK1(L59), K1(LQ9)
- Require Quantity: 16
- Package Quantity: 1
$60.54 $36.58
1
Add To Cart
12721203
LIFTER, VALVE(HYDRAULIC, ROLLER, NON-ACTIVE FUEL MANAGEMENT LIFTER)(MERCH PACKING OF QTY 4)
- Fitting Vehicle Options: CK1(LR4), CK1,2(LM7), CK1,2,3(LQ4), CK1(L59), K1(LQ9)
$181.49 $114.83
1
Add To Cart

19299585
SPARK PLUG, Spark Ignition, SPARK PLUG,GASOLINE ENGINE IGNITION(PLATINUM PLUG)
- Require Quantity: 08
- Package Quantity: 1
$13.20 $7.36
1
Add To Cart

12637683
GASKET, Engine Camshaft & Valve Rocker Cover, GASKET,VALVE ROCKER ARM COVER(PART OF 9,36)(*KIT1)
- Require Quantity: 02
- Package Quantity: 1
$34.05 $21.63
1
Add To Cart

BOLT, Engine Cylinder Head
12558840
BOLT, CYL HEAD(SHORT)(M8X1.25X45)
Fitting Vehicle Options: CK1,2,3(LQ4), CK1(LR4), CK1,2(LM7), CK1(L59), K1(LQ9)
Require Quantity: 10
Package Quantity: 1
$5.95 $3.59
1
Add To Cart
11588291
BOLT, CYL HEAD(M11X2.0X155)
- Fitting Vehicle Options: CK1,2,3(LQ4), CK1(LR4), CK1,2(LM7), CK1(L59), K1(LQ9)
- Require Quantity: 16
- Package Quantity: 1
$10.53 $6.35
1
Add To Cart
12560745
BOLT, CYL HEAD(SHORT)(M11X2.0X100.0-6G THREAD)(W/ADHESIVE PATCH)
- Fitting Vehicle Options: CK1,2,3(LQ4), CK1(LR4), CK1(L59), K1(LQ9)
- Require Quantity: 04
- Package Quantity: 5
$6.28 $3.78
5
Add To Cart
12560745
BOLT, CYL HEAD(M11X2.0X100.0-6G THREAD)(W/ADHESIVE PATCH)
- Fitting Vehicle Options: CK1,2(LM7)
- Require Quantity: 04
- Package Quantity: 5
$6.28 $3.78
5
Add To Cart

12589430
CAP, Engine Oil Filler, CAP,OIL FILLER(SAE 5W30, VENTED, W/SEAL)(INCLUDES 39)
$43.07 $22.82
1
Add To Cart

SEAL KIT, Engine Valve
12482063
SEAL KIT, INTAKE VALVE STEM OIL(W/SPRING SHIM)(14.4MM)(CONTAINS 8 SEALS)
Fitting Vehicle Options: CK1,2(LM7), CK1,2,3(LQ4), CK1(L59), K1(LQ9)
$60.23 $36.39
1
Add To Cart
12482063
SEAL KIT, INTAKE VALVE STEM OIL(14.4MM)(CONTAINS 8 SEALS)
- Fitting Vehicle Options: CK1(LR4)
$60.23 $36.39
1
Add To Cart
12482062
SEAL KIT, EXHAUST VALVE STEM OIL(22.8MM)(CONTAINS 8 SEALS)
- Fitting Vehicle Options: CK1,2(LM7), CK1,2,3(LQ4), CK1(LR4), CK1(L59), K1(LQ9)
$66.04 $37.95
1
Add To Cart

12595365
GUIDE, Engine Valve Push Rod Cover, GUIDE,VALVE LIFTER(ACCOMMODATES 4 VALVE LFTRS EACH,WITH SIDE GROOVES)
- Require Quantity: 04
- Package Quantity: 1
$17.43 $10.54
1
Add To Cart

12681275
ARM, Engine Valve Rocker, ARM,VALVE ROCKER
- Require Quantity: 16
- Package Quantity: 1
$22.71 $13.72
1
Add To Cart

WIRE KIT, Spark or Glow Plug Ignition
19351572
WIRE KIT, SPARK PLUG(7MM DIAMETER, 10.5IN LG)(CONTAINS 8 WIRES)(USED W/COILS STAMPED 12558693-MELCO COIL)
Fitting Vehicle Options: CK1,2(LM7)
Replaced By: 19417607
$171.34 $76.76
1
Add To Cart
19351572
WIRE KIT, SPARK PLUG(USED W/COILS STAMPED 12558693-MELCO COIL, 7MM DIAMETER, 10.5IN LG)(CONTAINS 8 WIRES)
- Fitting Vehicle Options: CK1(LR4), CK1,2,3(LQ4), CK1(L59), K1(LQ9)
- Replaced By: 19417607
$171.34 $76.76
1
Add To Cart
19417606
WIRE KIT, SPARK PLUG(COILS STAMPED 19005218-DELPHI COIL, 7MM DIAMETER, 9.2IN LG)(CONTAINS 8 WIRES)
- Fitting Vehicle Options: CK1(LR4), CK1,2(LM7), CK1,2,3(LQ4), CK1(L59), K1(LQ9)
$159.62 $71.51
1
Add To Cart

COVER, Engine Valve Rocker & Camshaft
12570427
COVER, VALVE ROCKER ARM(INCLUDES 4,5,10)(INCLUDES:COVER,GASKET,BOLT,DEFLECTOR,FITTING)(REMOVE PCV VALVE AND CONNECT HOSE TO VALVE COVER PORTION WHEN USING TO REPLACE PART NUMBER-12561820)
Location: Driver Side
Fitting Vehicle Options: CK1(LR4), CK1,2(LM7), CK1,2,3(LQ4), CK1(L59), K1(LQ9)
$202.36 $128.03
1
Add To Cart
12582224
COVER, VALVE ROCKER ARM(REPLACES COVER W/ONE BOSS AREA)(INCLUDES 4,10)(INCLUDES:COVER,GASKET,BOLT,CONNECTOR,FITTING,BAFFLE,CAP)(WHEN REPLACING COVER, TRIM EXISTING PCV HOSE TO FIT OR USE PCV HOSE 12582227)(IF REPLACING 2-PORTION VALVE COVER, PLUG LOOSE PCV HOSE.)
- Location: Passenger Side
- Fitting Vehicle Options: CK1(LR4)
$160.89 $102.23
1
Add To Cart
12582224
COVER, VALVE ROCKER ARM(INCLUDES 4,10)(INCLUDES:COVER,GASKET,BOLT,CONNECTOR,FITTING,BAFFLE,CAP)(WHEN REPLACING COVER, TRIM EXISTING PCV HOSE TO FIT OR USE PCV HOSE 12582227)(IF REPLACING 2-PORTION VALVE COVER, PLUG LOOSE PCV HOSE.)
- Location: Passenger Side
- Fitting Vehicle Options: CK1,2(LM7), CK1,2,3(LQ4), CK1(L59), K1(LQ9)
$160.89 $102.23
1
Add To Cart

12577215
BOLT, Engine Camshaft & Valve Rocker Cover, BOLT,VALVE ROCKER ARM COVER(PART OF 9,36)(M6.0X1.0)(W/GROMMET,SLEEVE)
- Require Quantity: 08
- Package Quantity: 1
$7.48 $4.75
1
Add To Cart

10238852
ROD, Engine Valve Push Rod, ROD,VALVE PUSH
- Require Quantity: 16
- Package Quantity: 1
$30.29 $18.31
1
Add To Cart

12574660
TUBE, Engine Crankcase Ventilation, TUBE,PCV(INCLUDES 19)(INCLUDE VALVE)
$64.90 $34.40
1
Add To Cart

GASKET, Engine Cylinder Head
12589227
GASKET, CYL HEAD(NEW HEAD BLTS REQ'D WHEN HEAD IS REMOVED)(*KIT1)
Fitting Vehicle Options: CK1,2,3(LQ4)
Require Quantity: 02
Package Quantity: 1
$90.49 $57.51
1
Add To Cart
12575329
GASKET, CYL HEAD(*KIT1)
- Fitting Vehicle Options: CK1(LR4), CK1,2(LM7), CK1(L59)
- Require Quantity: 02
- Package Quantity: 1
$69.23 $44.01
1
Add To Cart

12552203
SUPPORT, Engine Valve Adjusting, SUPPORT,VALVE ROCKER ARM PIVOT
- Require Quantity: 02
- Package Quantity: 1
$80.61 $51.23
1
Add To Cart

12574386
TUBE, Engine Crankcase, TUBE,OIL FILLER
$85.44 $49.10
1
Add To Cart

12554211
STUD, Ignition Coil Mounting, STUD,IGNITION COIL BRACKET(HEX FLANGED HEAD,M6X1X18)(M6X1X18.5X14)(3.330)
- Require Quantity: 10
- Package Quantity: 1
$14.14 $7.49
1
Add To Cart

10166345
KEY, Engine Valve Spring Cap, KEY,VALVE STEM
- Require Quantity: 32
- Package Quantity: 10
$5.17 $3.28
10
Add To Cart

10166345
KEY, Valve Stem, KEY,VALVE STEM
- Require Quantity: 32
- Package Quantity: 10
$5.17 $3.28
10
Add To Cart

12706568
SPRING, Engine Valve, SPRING,VALVE
- Require Quantity: 16
- Package Quantity: 1
$7.39 $4.63
1
Add To Cart

PLUG, Engine Cylinder Head
11610259
PLUG, CYL HEAD CORE HOLE(M12X1.5X21.2)(HEXAGON,SOCKET)
Fitting Vehicle Options: CK1,2(LM7), CK1,2,3(LQ4), CK1(LR4), CK1(L59), K1(LQ9)
$11.14 $6.72
1
Add To Cart
11562126
PLUG, CYL HEAD CORE HOLE(PART OF 14)(CUP,32.03X7.88X1.27, S30400 STAINLESS STEEL PER SAE J405.)
- Fitting Vehicle Options: CK1(LR4)
- Require Quantity: 02
- Package Quantity: 10
$4.17 $2.65
10
Add To Cart
11562126
PLUG, CYL HEAD CORE HOLE(PRESSURE IN CUP)(PART OF 14)(CUP,32.03X7.88X1.27, S30400 STAINLESS STEEL PER SAE J405.)
- Fitting Vehicle Options: CK1,2(LM7), CK1,2,3(LQ4), K1(LQ9)
- Require Quantity: 02
- Package Quantity: 10
$4.17 $2.65
10
Add To Cart
11562126
PLUG, CYL HEAD CORE HOLE(PART OF 14)(PRESSURE IN CUP)(CUP,32.03X7.88X1.27, S30400 STAINLESS STEEL PER SAE J405.)
- Fitting Vehicle Options: CK1(L59)
- Require Quantity: 02
- Package Quantity: 10
$4.17 $2.65
10
Add To Cart

VALVE, Exhaust
12563064
VALVE, EXHAUST(STD)
Fitting Vehicle Options: CK1,2,3(LQ4)(EXC KL5), CK1(LR4), CK1,2(LM7), CK1,2(L59), K1(LQ9)
Require Quantity: 08
Package Quantity: 1
Replaced By: 12694167
$37.36 $22.58
1
Add To Cart
12558295
VALVE, EXHAUST(STD)
- Fitting Vehicle Options: CK1,2,3(LQ4,KL5)
- Require Quantity: 08
- Package Quantity: 1
$63.52 $40.37
1
Add To Cart
12562954
VALVE, EXHAUST(0.015" OVERSIZE)
- Fitting Vehicle Options: CK1(LR4), CK1,2,3(LQ4)(EXC KL5), CK1,2(LM7), CK1(L59), K1(LQ9)
- Require Quantity: 08
- Package Quantity: 1

24100002
SEAL, Engine Oil Filler, SEAL,OIL FILLER CAP(O RING)(PART OF 40)(27.94MM INNER DIAMETER)(SIZE #320)(1.745)
- Require Quantity: 02
- Package Quantity: 5
$5.47 $2.72
5
Add To Cart

24100002
SEAL, Engine Crankcase, SEAL,OIL FILLER TUBE(O RING)(27.94MM INNER DIAMETER)(SIZE #320)
- Require Quantity: 02
- Package Quantity: 5
$5.47 $2.72
5
Add To Cart

10198949
GROMMET, Engine Crankcase, GROMMET,PCV VALVE(PART OF 9)
$11.50 $7.30
1
Add To Cart

12551163
BOLT, Engine Valve Lifter, BOLT,VALVE LIFTER GUIDE(M6X1.0X19)
- Require Quantity: 04
- Package Quantity: 10
$6.82 $4.34
10
Add To Cart

12556932
HOSE, Engine Crankcase Ventilation, HOSE,PCV
$82.66 $34.72
1
Add To Cart

12560961
BOLT, Engine Valve Rocker Arm Shaft, BOLT,VALVE ROCKER ARM PIVOT SUPPORT(M8X1.25X52.5)
- Require Quantity: 16
- Package Quantity: 1
$9.27 $5.89
1
Add To Cart

VALVE, Intake
12564494
VALVE, INTAKE(STD)
Fitting Vehicle Options: CK1(LR4), CK1,2(LM7), CK1(L59)
Require Quantity: 08
Package Quantity: 1
$34.46 $20.82
1
Add To Cart
12563063
VALVE, INTAKE(STD)
- Fitting Vehicle Options: CK1,2,3(LQ4,MT1)(EXC KL5), K1(LQ4,M32), K1(LQ9)
- Require Quantity: 08
- Package Quantity: 1
$39.32 $23.75
1
Add To Cart
12562952
VALVE, INTAKE(0.015" OVERSIZE)
- Fitting Vehicle Options: CK1,2,3(43)(LQ4,MT1)(EXC KL5), K1(LQ9)
- Require Quantity: 08
- Package Quantity: 1
$175.48 $37.97
1
Add To Cart
12564338
VALVE, INTAKE(STD)
- Fitting Vehicle Options: CK1,2,3(LQ4,MT1,KL5)
- Require Quantity: 08
- Package Quantity: 1
$34.49 $27.58
1
Add To Cart

12570326
PIN, Engine Cylinder Head, PIN,CYL HEAD LOCATING
- Require Quantity: 04
- Package Quantity: 1
$7.39 $4.46
1
Add To Cart

HEAD, Engine Cylinder
12562319
HEAD, CYL(PARTIAL)(INCLUDES 20,22)(INCLUDES HEAD,GUIDES,SEATS,PLUG)
Fitting Vehicle Options: CK1,2,3(LQ4)(EXC KL5), K1(LQ9)
Require Quantity: 02
Package Quantity: 1
$751.05 $473.06
1
Add To Cart
12578925
HEAD, CYL(INCLUDES 20,22)(EXCEPT VALVES)
- Fitting Vehicle Options: CK1(LR4), CK1,2(LM7), CK1(L59)
- Require Quantity: 02
- Package Quantity: 1
$854.96 $538.50
12685691
HEAD, CYL(PARTIAL)(INCLUDES 20,22)
- Fitting Vehicle Options: CK1,2,3(LQ4,MT1,KL5)
- Require Quantity: 02
- Package Quantity: 1

12575742
COVER, Engine Fuel Intake Manifold, COVER,ENGINE BLOCK VALLEY(SEE GROUP 00.000 "MANIFOLD & FUEL RELATED PARTS" FOR DETAILED ILLUSTRATED VIEW)
$515.95 $326.44

GASKET KIT, Engine Cylinder Head
89017252
GASKET KIT, CYL HEAD(EXCEPT:CYL HEAD BOLTS)(INCLUDES 10,28)(INCLUDES GASKET,CYL HEAD,INTAKE MANIFOLD,EXHAUST MANIFOLD,VALVE ROCKER COVER,SEAL)
Fitting Vehicle Options: CK1(LR4), CK1(LM7)
$317.38 $200.80
1
Add To Cart
89017252
GASKET KIT, CYL HEAD(INCLUDES 10,28)(EXCEPT:CYL HEAD BOLTS)(INCLUDES GASKET,CYL HEAD,INTAKE MANIFOLD,EXHAUST MANIFOLD,VALVE ROCKER COVER,SEAL)
- Fitting Vehicle Options: CK1(L59)
$317.38 $200.80
1
Add To Cart
19368586
GASKET KIT, CYL HEAD(INCLUDES 10,28)(INCLUDES GASKET,CYL HEAD,INTAKE MANIFOLD,EXHAUST MANIFOLD,VALVE ROCKER COVER,SEAL)
- Fitting Vehicle Options: CK1(LR4), CK1,2(LM7)
$453.23 $260.41
1
Add To Cart
89017253
GASKET KIT, CYL HEAD(EXCEPT:CYL HEAD BOLTS)(INCLUDES 10,28)(INCLUDE HEAD,INTKE & EXHAUST MANIFOLD GASKETS & COOLANT AIR BLEED PIPE SEALS)(INCLUDES GASKETS,SEAL)
- Fitting Vehicle Options: CK1,2,3(LQ4)
$468.97 $296.71
1
Add To Cart
89017253
GASKET KIT, CYL HEAD(EXCEPT:CYL HEAD BOLTS)(INCLUDES 10,28)(INCLUDE HEAD,INTKE & EXHAUST MANIFOLD GASKETS & COOLANT AIR BLEED PIPE SEALS)
- Fitting Vehicle Options: K1(LQ9)
$468.97 $296.71
1
Add To Cart
88894351
GASKET KIT, CYL HEAD(INCLUDES:CYL HEAD BOLTS)(INCLUDES 10,28)
- Fitting Vehicle Options: CK1,2,3(LQ4)

10166344
CAP, Engine Valve Spring, CAP,VALVE SPRING(EXHAUST)
- Require Quantity: 16
- Package Quantity: 1
$12.60
1
Add To Cart

12572717
VALVE, Engine Crankcase, VALVE,PCV(PART OF 1)

11609746
NUT, HEX FLANGED HEAD,M8X1.25,8.9THK,17.6 O.D.,10 STEEL,GMW3200, PREVENT TORQUE(SECONDARY AIR INJECTION PIPE)
- Require Quantity: 02
- Package Quantity: 12
$4.42 $2.67
12
Add To Cart

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 GMC Sierra 1500 HD 4WD parts. Parts like Engine Assembly-Cylinder Head & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L. Model Code: 1500 CREW CAB LONG BOX.