Valve Train Components for 2004 Chevrolet Trailblazer EXT
No.
Part # / Description / Price
Price
3
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
4
MSRP $55.48
$37.86
5
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
5
Crankshaft Rear Main Seal GM
GM Positions: Rear
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
6
Passenger Side Rocker Arm Cover GM
GM Positions: Right
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
6
Driver Side Rocker Arm Cover GM
GM Positions: Left
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
7
Valve Cover Gasket GM
GM Positions: Left
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
8
Engine Oil Filler Cap GM
GM Description: Genuine GM Engine Oil Filler Cap, part number 12573337. This GM OEM engine oil filler cap is a factory engine lubrication component that helps maintain proper oil supply, level or filtration. 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 12573337 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.
MSRP $20.88
$13.21
MSRP $20.88
$13.21
9
Engine Oil Filler Cap O-Ring GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $6.17
$3.92
MSRP $6.17
$3.92
11
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
12
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
13
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
14
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
15
Oil Pan Gasket GM
GM Notes: PARTS: Part included with oil pan.
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
16
Engine Oil Dipstick GM
GM Description: 5.3L. 6.0L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $64.70
$44.18
MSRP $64.70
$44.18
17
Engine Oil Level Indicator Tube GM
GM Description: 5.3L. 6.0L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $93.85
$63.67
MSRP $93.85
$63.67
