87-06 Wrangler Trans Cooler Kit

The DERALE 87–06 Wrangler Transmission Cooler Kit is a direct-fit fluid cooling solution engineered for Jeep Wrangler TJ and YJ models spanning 1987 through 2006. This plate-and-fin aluminum cooler with black powder coat finish manages transmission heat buildup during sustained off-road operation, towing, or extreme driving conditions where factory cooling capacity falls short. The kit arrives complete with mounting brackets, hoses, and six AN male adapters pre-fitted to 5/8-18 female inlets and outlets, eliminating fabrication work and ensuring reliable connections from day one.

Transmission fluid temperature control is critical for extending gearbox longevity and maintaining shift quality during high-load scenarios. The plate-and-fin core design maximizes surface area for efficient heat rejection while the integrated cooling fan activates when temperature thresholds are reached, automating the cooling cycle without driver intervention. The aluminum construction combined with black powder coat provides corrosion resistance suitable for varied climates and wet environments. AN adapter fittings deliver leak-free connections and allow precise line routing to match vehicle layout.

This cooler addresses a known limitation in stock Wrangler TJ and YJ cooling systems, particularly for owners who regularly tow, navigate rock crawls, or operate in hot climates where transmission temperatures climb rapidly. Weekend four-wheeler enthusiasts benefit from added reliability margin during challenging terrain. Serious off-road competitors depend on transmission coolers to prevent fluid breakdown and clutch slippage that can compromise performance and safety when stock systems reach their thermal ceiling. The direct-fit design for these generation Wranglers ensures proper fitment and functional cooling without custom modifications.