Engine for 2004 Chevrolet Trailblazer EXT
No.
Part # / Description / Price
Price
N/A
Engine Cylinder Head Gasket Kit with Gaskets and Seals 
GM
GM Description: Silverado, sierra. 4.8l, 5.3l. All models. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
1
Engine Cylinder Head GM
GM Description: Without engine vin code b. Express, savana. 4.8l. All models. Express, savana. 5.3l. SSR. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
2
Cylinder Head Gasket GM
GM Description: Genuine GM Cylinder Head Gasket, part number 12575329. This GM OEM cylinder head gasket seals the joint between two components to prevent fluid, air or exhaust leaks. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12575329 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $81.82
$55.84
MSRP $81.82
$55.84
3
Passenger Side Rocker Arm Cover GM
GM Description: Genuine GM Passenger Side Rocker Arm Cover, part number 12582224. This GM OEM passenger side rocker arm cover is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12582224 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $177.56
$120.04
MSRP $177.56
$120.04
3
Driver Side Rocker Arm Cover GM
GM Description: Genuine GM Driver Side Rocker Arm Cover, part number 12570427. This GM OEM driver side rocker arm cover is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12570427 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $234.52
$158.53
MSRP $234.52
$158.53
4
Valve Cover Gasket GM
GM Description: Genuine GM Valve Cover Gasket, part number 12637683. This GM OEM valve cover gasket seals the valve cover to the cylinder head, keeping engine oil in and dirt and moisture out to prevent leaks and oil burning on hot exhaust parts. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12637683 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $42.07
$28.72
MSRP $42.07
$28.72
5
Engine Intake Valve GM
GM Description: All models. 4.8l. All models. 5.3l. Without engine vin code b. Express, savana. 4.8l. S-series. Express, savana. 5.3l. SSR. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $37.02
$25.27
MSRP $37.02
$25.27
6
Exhaust Valve GM
GM Description: Genuine GM Exhaust Valve, part number 12694167. This GM OEM exhaust valve is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12694167 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $52.43
$35.78
MSRP $52.43
$35.78
7
Valve Seals GM
GM Description: Genuine GM Valve Seals, part number 12482063. This GM OEM valve seals seals the joint between two components to prevent fluid, air or exhaust leaks. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12482063 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $66.50
$45.39
MSRP $66.50
$45.39
7
Valve Seals GM
GM Description: Genuine GM Valve Seals, part number 12482062. This GM OEM valve seals seals the joint between two components to prevent fluid, air or exhaust leaks. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12482062 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $72.90
$49.77
MSRP $72.90
$49.77
8
Valve Spring GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.16
$5.88
MSRP $8.16
$5.88
9
Valve Spring Cap GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.57
$6.89
MSRP $9.57
$6.89
10
Valve Locks GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.83
$5.64
MSRP $7.83
$5.64
11
Valve Rocker Arm GM
GM Description: Genuine GM Valve Rocker Arm, part number 12681275. This GM OEM valve rocker arm is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12681275 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $25.07
$18.08
MSRP $25.07
$18.08
12
LS-Series Steel Pushrod GM
GM Description: Upgrade or rebuild your valvetrain with this Genuine GM LS-Series Steel Pushrod. Manufactured to GM specifications for correct length and strength, it transfers motion from the camshaft lifters to the rocker arms for accurate valve timing. A trusted choice for LS engine rebuilds, cam swaps and replacing bent pushrods. Genuine GM OEM part number 10238852. Please verify fitment with your VIN before purchasing.
MSRP $32.56
$23.49
MSRP $32.56
$23.49
13
Valve Lifter GM
GM Description: Genuine GM Valve Lifter, part number 17122490. This GM OEM valve lifter is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 17122490 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $58.57
$39.97
MSRP $58.57
$39.97
14
Engine Camshaft GM
GM Description: Genuine GM Engine Camshaft, part number 12560967. This GM OEM engine camshaft is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12560967 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $860.25
$579.84
MSRP $860.25
$579.84
16
Engine Front Cover Seal GM
GM Description: Genuine GM Engine Front Cover Seal, part number 12585673. This GM OEM engine front cover seal seals the joint between two components to prevent fluid, air or exhaust leaks. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12585673 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $45.57
$31.10
MSRP $45.57
$31.10
18
Timing Cover GM
GM Description: Genuine GM Timing Cover, part number 12633906. This GM OEM timing cover keeps the crankshaft and camshaft(s) synchronized so the valves open and close at the right time. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12633906 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $198.46
$134.17
MSRP $198.46
$134.17
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Camshaft Gear GM
GM Description: Genuine GM Camshaft Gear, part number 12576407. This GM OEM camshaft gear is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12576407 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $59.89
$40.88
MSRP $59.89
$40.88
20
Crankshaft Gear GM
GM Description: Genuine GM Crankshaft Gear, part number 12556582. This GM OEM crankshaft gear is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12556582 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $55.66
$37.98
MSRP $55.66
$37.98
21
Timing Chain GM
GM Description: Genuine GM Timing Chain, part number 12646387. This GM OEM timing chain connects the crankshaft to the camshafts, keeping valve timing synchronized with piston movement for smooth, reliable engine operation. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12646387 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $113.91
$77.27
MSRP $113.91
$77.27
22
Piston Rings GM
GM Notes: Includes: One Standard Ring Set For One Piston.
Description: Genuine GM Piston Rings, part number 12670787. This GM OEM piston rings is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12670787 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $74.41
$50.80
MSRP $74.41
$50.80
23
Engine Piston GM
GM Notes: Includes: One Standard Piston W/Pin.
Description: All models. Express, savana. 5.3l. 1st Design. Pressed Pin Piston. Incl.Pin. SSR. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
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Connecting Rod GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
25
Bearing GM
GM Notes: Includes: One Standard Upper & Lower Bearing For One Rod.
Description: Genuine GM Bearing, part number 89017573. This GM OEM bearing is an internal engine component built to factory specifications for proper fit, balance and durability. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 89017573 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $26.49
$19.10
MSRP $26.49
$19.10
26
MSRP $97.41
$66.07
26
Engine Crankshaft Thrust Washer GM
GM Notes: Includes: One Standard Upper & Lower Bearing.
Description: Genuine GM Engine Crankshaft Thrust Washer, part number 89017572. This GM OEM engine crankshaft thrust washer is part of the windshield washer system, storing or delivering washer fluid to keep the glass clean. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 89017572 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $87.80
$59.55
MSRP $87.80
$59.55
28
Crankshaft Rear Main Seal GM
GM Description: Genuine GM Crankshaft Rear Main Seal, part number 89060436. This GM OEM crankshaft rear main seal seals the joint between two components to prevent fluid, air or exhaust leaks. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 89060436 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $44.00
$30.03
MSRP $44.00
$30.03
29
LS Rear Block Cover GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $104.98
$71.21
MSRP $104.98
$71.21
30
Crankshaft Rear Oil Seal Housing Gasket GM
GM Description: Genuine GM Crankshaft Rear Oil Seal Housing Gasket, part number 12639249. This GM OEM crankshaft rear oil seal housing gasket seals the rear crankshaft oil seal housing to the engine block, stopping oil leaks at the back of the engine. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12639249 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $67.19
$45.86
MSRP $67.19
$45.86
32
Oil Pan GM
GM Description: All models. 5.3L. 6.0L. SSR. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $551.98
$372.04
MSRP $551.98
$372.04
33
Oil Pan Gasket GM
GM Description: Genuine GM Oil Pan Gasket, part number 12612350. This GM OEM oil pan gasket seals the oil pan to the engine block, preventing oil leaks. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12612350 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $87.01
$59.38
MSRP $87.01
$59.38
34
Oil Pump GM
GM Description: All models. Impala, Monte Carlo. Grand Prix. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $177.87
$120.24
MSRP $177.87
$120.24
35
Oil Pump Screen GM
GM Description: All models. SSR. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $120.56
$81.78
MSRP $120.56
$81.78