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Replace three of the factory plastic caps on your 2003–2007 6.0L Powerstroke with the strength and style of CNC-machined billet aluminum.
The factory oil filler, fuel filter, and oil filter caps are made from plastic that can become brittle with age or be damaged from overtightening. The Sinister Diesel Billet Cap Kit replaces all three with solid billet aluminum components designed for long-term durability and precise fitment.
Each cap is CNC machined for a clean fit and finished in our signature Sinister Blue anodized finish, giving your 6.0L Powerstroke engine bay an immediate visual upgrade while eliminating three factory plastic components.
The fuel filter and oil filter caps are also tapped for 1/8" NPT, giving you a convenient location for compatible pressure gauges, sensors, or diagnostic equipment when needed.
It's a simple upgrade that combines function, durability, and unmistakable Sinister Diesel styling.
Included:
Fitment:
Note:
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