Deluxe Thinline TransCoo ler 8 Pass -6AN

The Deluxe Thinline TransCooler 8 Pass -6AN from PERMA-COOL is a compact transmission oil cooler engineered for builders and enthusiasts who demand efficient heat management without sacrificing underbody clearance. This unit addresses a critical pain point in high-performance and street-modified vehicles: transmission fluid overheating under load, which degrades viscosity, reduces shift quality, and shortens fluid life. Built for vehicles running upgraded powerplants, torque converters, or frequent towing, the Deluxe Thinline design delivers professional-grade cooling in a space-constrained package.

The 8-pass core design maximizes fluid dwell time inside the cooler, allowing more heat transfer cycles per gallon circulated—a key advantage over single-pass or cross-flow designs. PERMA-COOL's thinline construction reduces depth while maintaining core surface area, making it ideal for tight engine bays or chassis setups where radiator support clearance is limited. The -6AN inlet and outlet ports accept standard braided transmission cooler hoses, enabling straightforward plumbing integration without exotic fittings or adapters. At 2.04 lbs and measuring 12.6 x 2.4 x 17.35 inches, this cooler fits where traditional deep-core units cannot, without compromising thermal capacity for street or mild competition use.

This cooler suits street machines, sport-compact builds, and late-model transmissions where factory cooling proves marginal under spirited driving or sustained load. Installers appreciate the compact footprint and -6AN sizing, which work with both OEM-adjacent and custom transmission lines. Mounting bracket compatibility varies by application, so verify your vehicle platform before ordering; many builders integrate this unit in front-fender wells, under-bumper locations, or along frame rails to keep ATF temperatures in the 180–200°F range. Proper plumbing order—always flow from the transmission sump, never the cooler input—ensures maximum efficiency and prevents bypass during warm-up cycles.