Spin-On Fuel Filter Conversion Kit – Fits M939, M939A1, M939A2 & M809 Series Trucks

Upgrade your military truck’s fuel filtration system with this spin-on fuel filter conversion kit, designed to replace the outdated canister-style fuel filters. This kit simplifies maintenance, improves filtration efficiency, and gives you full control over your fuel cleanliness with a list of compatible filters from Wix and other major brands.

Choose the right kit for your truck:

• M939 & M939A1 with the 250 Cummins

• M939A2 with the 8.3 Cummins – different fuel lines required

• Dual fuel tank configurations have specific fuel line routing

• M809 series trucks use the M939A1 kit – direct fit, no modifications needed

Key Features:

• Replaces factory canister fuel filters with modern spin-on filters

• Includes a full list of Wix filter numbers with micron ratings

• Easy cross-reference to other major filter brands

• Custom-tailored filtration: choose the micron level that fits your engine and fuel quality needs

• Simplifies maintenance and improves long-term reliability