OBS Duramax Swap Parts
Everything to swap a Duramax diesel into your 1988-1998 Chevy & GMC OBS truck — mounts, adapter plates, and hardware for LB7 through later Duramax platforms. Prefer gas? See OBS LS or LT Engine Swap Parts, or the full Engine Swap Parts hub.
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12pt Lower Rocker Cover Bolt Kit - 6.6L Duramax LLY-LMM
Regular price $74.95 USDRegular price -
Oil Pan Bolt Kit - 6.6L Duramax LB7-LMM
Regular price $54.32 USDRegular price -
12pt Y-Pipe Bolt Kit - 6.6L Duramax LB7-LMM
Regular price $16.72 USDRegular price -
12pt Valve Cover Bolt Kit - 6.6L Duramax LBZ/LLY/LML/LMM (Standard)
Regular price $148.16 USDRegular price -
12pt SS Thermostat Housing Bolt Kit - 6.6L Duramax LMM
Regular price $50.17 USDRegular price -
Hex Valve Cover Bolt Kit - 6.6L Duramax LBZ/LLY/LML/LMM
Regular price $186.06 USDRegular price -
Flexplate Bolt Kit - 6.6L GM Duramax
Regular price $97.98 USDRegular price -
Rod Bolt Kit - 6.6L GM Duramax
Regular price $277.11 USDRegular price -
12pt Valve Cover Bolt Kit - 6.6L Duramax LBZ/LLY/LML/LMM
Regular price $208.69 USDRegular price -
ARP2000 Head Stud Kit - GM Duramax 2.8L
Regular price $309.46 USDRegular price -
Main Stud Kit - 6.6L Duramax LBZ/LMM (2006 and later)
Regular price $311.49 USDRegular price -
CA625 Head Stud Kit - 6.6L Duramax L5P
Regular price $2,247.78 USDRegular price -
Balancer Bolt Kit - 6.6L GM Duramax (Bolt Only)
Regular price $30.42 USDRegular price -
Custom Age 625+ Head Stud Kit - 6.6L Duramax LB7/LLY/LBZ/LMM
Regular price $2,196.48 USDRegular price -
Main Stud Kit - 6.6L Duramax LB7/LLY (2005 and earlier)
Regular price $307.28 USDRegular price -
ARP2000 Head Stud Kit - 6.6L Duramax L5P
Regular price $852.08 USDRegular price
