Tube/Fin Replcemnt Core (Fits P/N:15502/15503/15

The DERALE Tube/Fin Replacement Core (MPN 15302) is a precision engine oil cooler core engineered for vehicles running modified or high-performance powertrains where factory cooling capacity falls short. This replacement core fits OEM cooling systems (P/N 15502/15503 compatibility), making it an ideal upgrade for engine builders, track enthusiasts, and mechanics managing elevated oil temperatures in turbocharged, supercharged, or heavily tuned engines. Whether you're upgrading an existing fluid cooler or fabricating a custom cooling solution, this core delivers the thermal management your modified engine demands.

Constructed from aluminum and copper with a black powder-coat finish, the tube-and-fin design maximizes surface area for efficient heat dissipation while maintaining a compact footprint measuring 8 x 2.1 x 18.2 inches and weighing just 2.15 lbs. The core features 11/32-inch hose barb inlets and outlets, providing flexible port compatibility with standard cooling lines and adapters found in most performance cooling systems. Aluminum offers excellent thermal conductivity and corrosion resistance, while copper tubes ensure durability under sustained high-temperature operation—critical when cooling engine oil in forced-induction or racing applications where conventional cooling fails.

This replacement core is ideal for mechanics and engine builders upgrading existing DERALE fluid coolers or integrating into custom sandwich-plate or external cooler configurations. Installation requires simple hose connections to your engine's oil circuit, typically via a thermostat sandwich adapter or remote filter block. Real-world application spans street-driven turbo builds, LS engine swaps, and dedicated track cars where oil temperatures routinely exceed 200°F. Verify compatibility with your specific cooling system plumbing before purchase; the 11/32-inch barb size accommodates standard automotive hose but may require adapters depending on your existing line diameter.