PDI Billet Oil Fill Cap for Cummins ISX and X15 S8/OnX6 while still being lighter than

while still being lighter than a laptop

we focus on perfecting our Fuel Systems and how they are engineered-taking the extra steps that our competitors simply do not

The gradual angles of the manifold have been built to reduce swirl rate resulting in cooler exhaust temperatures by 75-100 degrees

as well as all major cold air intake designs currently on the market

(2) Custom Machined Grade 8 Bolts and Hardware

PDI Billet Oil Fill Cap for Cummins ISX and X15 S8/OnX6 while still being lighter thanAvailable for: 2010 2020 Cummins ISX12, ISX15, X12, X15 Engines Performance Diesels BIG BOSS Oil Fill Caps are CNC machined from high grade billet aluminum for longevity and superior performance. OEM fill caps are made from inferior plastic which is known to fail and leak oil. Due to vibration and inferior engineering, low quality oil fill caps have been known to come loose and fall off while driving down the road. Dont get caught in a bind! PDI Oil