LLY Duramax Engine Parts

XDP Model XD331 Avoid catastrophic engine failure from a sheared dowel pin in your 2001-2016 GM 6.6L Duramax with the XDP Duramax Crankshaft Pin K...

XDP Model XD171The XDP Duramax CAT Adapter with 1R-0750 Filter, Bleeder Screw & Spacer XD171 is an easy way to upgrade the fuel filter on your ...

XDP Model XD3006HSThe XDP X220 Series Head Stud Kit XD3006HS is a must have for your high performance 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML...

Upgrade your high-performance GM 6.6L Duramax LML/LGH with XDP Performance Balancer Series - Diesel Performance Harmonic Balancer XD722. High-perfo...

The XDP Premium Balancer Series - Stock Replacement Harmonic Balancer XD709 is an ideal replacement for the worn harmonic balancer on your GM 6.6L ...

XDP Model XD656 XDP Flex Plate Bolt Kit XD656

XDP Model XD628

XDP Model XD3019RBUpgrade the factory connecting rod bolts on your 2001-2010 GM 6.6L Duramax LB7/LLY/LBZ/LMM with the XDP Connecting Rod Bolt Kit X...

XDP Model XD477Customize the underhood of your 2001-2021 GM 6.6L Duramax when you add the Billet Aluminum Oil Cap XD477. Each cap features a CNC-ma...

XDP Model XD3007MSThe Main Stud Kit XD3007MS is essential for setting up your 2001-2005 GM 6.6L Duramax LB7/LLY for competition or street use. OEM ...

XDP Model XD386 The XDP Performance Valve Springs & Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Cams...

XDP Model XD385 The XDP Rocker Arm Shafts XD385 are specially designed to minimize the common oiling issues in the 2001-2019 GM 6.6L Duramax engin...

XDP Model XD384 The XDP Billet Rocker Arm Valve Bridge Set XD384 will greatly improve the factory valvetrain in your modified 2001-2016 GM 6.6L Du...

XDP Model XD355 Increase the output of the charging system in your 2001-2007 GM 6.6L Duramax with the XDP Wrinkle Black HD High Output Alternator X...

XDP Model XD316Restore lost power from the valvetrain in your 2001-2016 GM 6.6L Duramax with the XDP Pushrods 7/16" Competition & Race Performa...

XDP Model XD315The XDP Pushrods 3/8" Street Performance XD315 eliminate the weak link in the valvetrain of your 2001-2016 GM 6.6L Duramax. The fact...

XDP Model XD251You can rely on the XDP Wrinkle Black HD Gear Reduction Starter XD251 to get your 2001-2019 GM 6.6L Duramax running in the most extr...

XDP Model XD224Don't just replace the failing alternator in your 2001-2007 GM 6.6L Duramax, upgrade it with the XDP Direct Replacement High Output ...

XDP Model XD184The XDP Billet Turbo Resonator Delete Plug XD184 for your 2004.5-2010 GM 6.6L Duramax allows you to clean up the under-hood of your ...