Performance Aluminum Oil Cooler Replacement for Mazda RX2 RX3 RX4 RX7 RX-7 1.3L 12A 13B Rotary Engine, 50mm Thick Core, 575mm Overall

Stabilize Your Rotary Engine Temperatures with Zarklenu Aluminum Oil CoolerThe Mazda rotary engine depends heavily on its oiling system for both lubrication and critical internal cooling. Standard factory oil coolers can become restricted over time or fail to keep up with the demands of a modified 12A or 13B engine. The Zarklenu Full Aluminum Oil Cooler is the ultimate solution for RX-series enthusiasts.Optimized for Heat Management:Rotary engines operate at significantly higher temperatures than piston engines. Our oil cooler features an extra-thick 50mm core designed to increase surface area and oil volume. This results in at least 30% more efficient cooling, ensuring your engine maintains its thermal integrity even under high-load conditions.Premium Build Quality:High-Pressure Durability: 100% TIG-welded aluminum tanks ensure a leak-proof lifespan, capable of handling the high oil pressures generated at 8,000+ RPM.Corrosion Resistance: Made from high-grade aluminum, this unit is designed to resist the elements while providing superior thermal conductivity compared to heavy, aging OEM units.Professional Spec: Fully tested for flow and pressure to ensure it meets the rigorous standards required for JDM racing and restoration projects.Technical Specifications:Fitment: Mazda RX2, RX3, RX4, RX7Core Size: 106mm x 500mm x 50mmOverall Size: 575mm x 120mm x 63mmInlet/Outlet: 31mm / 31mmDesign: High-Flow Tube & Fin

• [ROTARY ENGINE SPECIALIZED]: High-performance oil cooler upgrade designed for Mazda RX2, RX3, RX4, and RX7 (SA/FB/FC) models equipped with 1.1L and 1.3L rotary engines.
• [ULTIMATE COOLING CAPACITY]: Features a massive 50mm thick, high-flow core that provides 30% more oil flow capacity than stock units. Essential for high-RPM rotary engine protection.
• [FULL ALUMINUM CONSTRUCTION]: 100% TIG-welded from premium aluminum for maximum heat dissipation and high-pressure reliability. Built to withstand extreme temperatures and resist corrosion.
• [RACING GRADE UPGRADE]: Engineered to stabilize oil temperatures during aggressive driving or track sessions, preventing premature wear on critical rotor seals and bearings.
• [DIMENSIONS & FIT]: Core Size: 106mm W x 500mm H x 50mm T; Overall Size: 575mm H x 120mm W x 63mm T. Features 31mm Inlet/Outlet for high-volume circulation.