Home / Sinister Diesel Billet Blue Cap Kit for 2003–2007 Ford Powerstroke 6.0L – Coolant Reservoir, Oil and Fuel Filter Cap Upgrade

Sinister Diesel Billet Blue Cap Kit for 2003–2007 Ford Powerstroke 6.0L – Coolant Reservoir, Oil and Fuel Filter Cap Upgrade

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  • Detail
    • Compatible with 2003–2007 Ford Powerstroke 6.0L – Designed for a perfect fit on F-250, F-350, and other 6.0L Powerstroke models
    • Complete Billet Cap Kit – Includes oil filter cap, fuel filter cap, and coolant reservoir cap for a full upgrade
    • Durable CNC-Machined Aluminum – Built from high-quality billet aluminum to replace weak plastic factory caps. Machined at our Facility in the USA
    • Signature Sinister Blue Finish – Anodized for corrosion resistance and a clean, custom engine bay look
    • Stock Oil Filter Compatibility Only – Oil filter cap is not compatible with tall aftermarket filters; switch to OEM-height for proper fit
    • liminates Common Failure Points – Protects against leaks, cracks, and warping seen with OEM plastic caps
    • Fast, Hassle-Free Installation – Direct-fit design makes installation simple with basic tools


    Sinister Billet Blue Cap Assembly

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