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2026 GMC Sierra 3500 HD

Denali Ultimate 6.6L V8 - Diesel

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Engine for 2026 GMC Sierra 3500 HD

Part # / Description / Price
Price
Head Gasket
GM GM
Description: Left. Right. Silverado, Sierra 3500 HD. Grade A. 1.14-1.26mm Thick.
MSRP $88.36
$55.40
MSRP $88.36
$55.40
Head Gasket
GM GM
Description: Right. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Grade B. 1.19-1.31mm Thick.
MSRP $104.38
$65.45
MSRP $104.38
$65.45
Gasket
GM GM
Description: Grade C. 1.24-1.36mm Thick.
MSRP $123.77
$77.61
MSRP $123.77
$77.61
Rear Crankshaft Oil Seal
GM GM
Positions: Rear
Description: All models. Express, savana. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Seals the openings on either end of the crankshaft for a tight seal Withstands heat and pressure to help prevent the engine from leaking oil This GM Genuine Part is designed ...
MSRP $83.58
$52.88
MSRP $83.58
$52.88