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2003 GMC Sierra 3500
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Timing Belts, Chains, Cams & Related Parts
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Dorman® OE Solutions Aluminum Timing Chain Cover for 2003 GMC Sierra 3500
PartNumber: 635-522Product Specifications- Color/Finish: Silver
- Grade Type: Regular
- Length: 13"
- Material: Aluminum
- OE Part Number: 12561243, 8-12561-243-0
- UPC: 885484513396
- Width: 10.5"
- Part Description: 2003 GMC Sierra 3500 OE Solutions Aluminum Timing Chain Cover
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$82.45
OEM (Genuine) 2003 GMC Sierra 3500 Front Cover
PartNumber: 12561243
Product Specifications- Other Names: Front Cover, Timing Cover
- Item Dimensions: 14.6 x 14.7 x 6.1 inches
- Item Weight: 3.40 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 12633906
- Part Description: 2003 GMC Sierra 3500 Front Cover
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
$101.04 MSRP:$175.87You Save: $74.83 (43%)
OEM (Genuine) 2003 GMC Sierra 3500 Cover, Engine Front
PartNumber: 97225443
Product Specifications- Notes: 6.6 Liter Turbo Diesel; All Models
- Other Names: Front Cover, Timing Cover
- Item Dimensions: 8.2 x 8.1 x 1.0 inches
- Item Weight: 1.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Cover, Engine Front
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
OEM (Genuine) 2003 GMC Sierra 3500 Front Cover
PartNumber: 12566113
Product Specifications- Notes: 8.1 Liter Gas; All Models
- Other Names: Front Cover, Timing Cover
- Item Dimensions: 3.6 x 16.2 x 12.8 inches
- Item Weight: 2.20 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Front Cover
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 8.1 L GAS
FAQ for Timing Cover Repair
Q: How to install the timing cover?
A:
You can install the front cover gasket and cover, the front cover bolts until snug, the oil pan-to-front cover bolts until snug, J41476to the front cover, and align the tapered legs of the J41476 with the machined alignment surfaces on the front cover.
By Bob
GM Specialist
02/11/2022Q: How to remove the timing cover?
A:
You can remove the water pump, the crankshaft balancer, the oil pan-to-front cover bolts, the front cover bolts, the front cover and gasket, discard the front cover gasket, and clean and inspect the engine front cover.
By Bob
GM Specialist
02/11/2022Q: What is the recommended torque for the crankshaft balancer bolt?
A:
The recommended torque is 25 Nm (18 ft. lbs.).
By Bob
GM Specialist
02/11/2022