Frame Rail Cooler 12in Long AN-6 Inlets

The DERALE Frame Rail Cooler 12-inch Long with AN-6 Inlets is a compact fluid cooling solution engineered for automatic transmission heat management in performance and high-demand applications. This 12-inch tube-type cooler mounts directly to frame rails and uses AN-6 male inlet/outlet connections, making it a bolt-on retrofit option for vehicles requiring dependable transmission cooling without extensive plumbing modifications.

Constructed from aluminum and copper with a durable black powder-coat finish, the cooler resists corrosion and weathering in harsh operating environments. The tube-type core design maximizes surface area for efficient heat dissipation while maintaining a compact footprint at 3.05 x 3 x 14.8 inches and weighing just 0.95 pounds. AN-6 fittings are industry-standard for transmission cooling circuits, ensuring compatibility with existing hose assemblies and quick-connect adapters used in automotive performance builds and fleet maintenance.

This DERALE cooler addresses the specific need for integrated frame-rail cooling in vehicles where underbody space is limited or where OEM transmission cooling capacity falls short under sustained operation. Off-road platforms, towing-equipped trucks, and high-performance street machines benefit from supplemental cooling that maintains transmission fluid temperatures within safe operating range. The 12-inch length and standardized AN-6 connection points allow straightforward installation alongside other frame-mounted components without interference or fitment issues.

DERALE is an established manufacturer in the automotive cooling systems market, known for aluminum and copper cooler designs that serve both stock cooling upgrades and full performance cooling packages. SKU DER13223 identifies this specific 12-inch model within DERALE's frame rail cooler lineup, making it straightforward to cross-reference with technical documentation and installation guides.