The HDi Isuzu D-max gen3/mu-x Gen2 3.0 version or Mazda bt-50 2020- now 3.0 version Automatic Transmission Cooling Kit, with product code HDI-Dmax-ATF, is engineered to enhance the maintenance of ATF oil temperature, particularly under heavy loads or while towing. Tests have revealed a significant 10-15 degree Celsius decrease in peak temperatures, alongside improved in-gear torque transfer. This enhanced regulation of transmission oil temperature serves as an efficient method to prolong the transmission's lifespan and enhance fuel economy. The kit replaces the factory unit with a superior 50mm thick, 28-row HDi oil cooler, featuring -8 AN professional fittings, high-pressure hose, and CNC machined connectors for a seamless installation. Its optimized design minimizes pressure loss, while the larger cooler capacity extends the life of the automatic transmission fluid. Built for durability, the kit boasts one-piece stainless steel brackets and fasteners to safeguard the HDi ATF cooler against chassis stresses, ensuring reliable performance even in challenging conditions.