GW7DCT2-A02 1500000CDB221 Remanufactured Dual-clutch Automatic Transmission For Changan

Application: 7-speed wet-clutch DCT (e.g., GW4D20/4N20 engine models, torque-rated ~450Nm).

Rebuild Enhancements:

• Clutch Pack Upgrades: Carbon-coated friction plates (30% longer life vs OEM)

• Mechatronic Unit: Recalibrated shift solenoids (addresses P283A/P284B faults)

• Bearing Kits: Ceramic hybrid input shaft bearings

Critical Failure Fixes:

1. Shift Fork Wear: Hardened guide rails (+PTFE coating)

2. TCU Software: Pre-loaded cold-shift optimization

3. Shaft Seal Leaks: Viton-reinforced designs

Installation Musts:

• Fluid: Great Wall DCT-F only (5.8L capacity)

• Adaptation Reset: Via GW-DS diagnostic tool

• Clutch Learn: 30-cycle initialization