GM Genuine Parts Oil Pan Gasket, 12666993
In stock
$7.99
Listed as compatible with this vehicle by the retailer feed.
Check price2021 Chevrolet Silverado 3500HD Engine Gaskets
4 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
Felpro Engine Crankshaft Seal Kit, TCS 46193
In stock
$42.99
Listed as compatible with this vehicle by the retailer feed.
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Felpro Engine Cylinder Head Bolt Set, ES 73121
In stock
$57.99
Listed as compatible with this vehicle by the retailer feed.
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Victor Reinz Engine Crankshaft Seal Kit, 19-10186-01
In stock
$81.99
Listed as compatible with this vehicle by the retailer feed.
Check price
This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.