Chrysler Dodge Jeep 5-Speed W5A580 NAG1 Automatic Transmission

Summary: The W5A580 (also known as the NAG1) 5-speed automatic transmission assembly is a highly durable and proven gearbox utilized across major Chrysler, Dodge, and Jeep platforms. Engineered for both Rear-Wheel Drive (RWD) and All-Wheel Drive (AWD) configurations, this premium remanufactured unit effortlessly handles high torque outputs, instantly restoring seamless shifting and factory-grade reliability to your vehicle.

Core Features:

• Heavy-duty internal architecture engineered to reliably handle high input torque from 3.6L V6 and 5.7L V8 Hemi engines.

• Fully rebuilt and calibrated valve body with upgraded solenoids to eliminate common shifting delays, shudder, or harsh gear engagements.

• Includes a remanufactured torque converter featuring a multi-plate lock-up clutch for optimized highway cruising and fuel economy.

Technical Notes:

• Fluid Specification: This transmission exclusively requires Chrysler/Mopar ATF+4 fluid. Using generic or incorrect fluid will cause immediate shifting issues and clutch failure.

• TCM Adaptation Required: After installation, a Transmission Control Module (TCM) "Quick Learn" adaptation procedure must be performed using a professional diagnostic scan tool.

• Cooler Flushing: The vehicle’s transmission cooler and external lines must be meticulously flushed prior to operation to prevent old metallic debris from destroying the new unit.