Oil Filter Mount Side Ports

The DERALE Oil Filter Mount Side Ports (Part #35729) is a premium aluminum filter adapter designed for high-performance engine cooling systems requiring dual-port remote filtration. This side-port style mount features AN female O-ring connections that facilitate clean oil circulation management in performance and custom engine builds where factory filter placement is impractical or suboptimal.

The unit mounts via a 13/16-16 inch center threaded boss—a standard engine block or auxiliary housing connection point on LS, small-block, and big-block platforms. The dual-port configuration allows simultaneous fluid feed and return, essential for maintaining proper pressure and volume in systems running auxiliary coolers, sandwich adapters, or remote filter canisters. Black powder-coat finish resists heat, oil seepage, and corrosion in underhood environments. The adapter's compact footprint (4.4 × 2.3 × 7.4 inches, 1.95 lbs) permits installation in tight engine bays without interfering with accessory drives or exhaust manifolds.

This mount serves builders, performance shops, and serious engine enthusiasts running custom cooling circuits, motorsports applications, or marine platforms where conventional inline filtration is not viable. It's equally applicable to off-road recovery vehicle builds and industrial engine conversions. The universal design accommodates most threaded engine locations; verify your engine's port thread size and spacing before ordering to ensure fitment compatibility.

DERALE is recognized in the cooling-systems market for precision aluminum castings and OEM-level engineering. This mount represents their standard approach: straightforward mechanical design, reliable materials, and verified performance in both street and competition applications. Each unit ships individually and is ready to integrate into your custom system.