The Eaton K4678CL is a heavy-duty, OEM-quality dual-disc clutch kit designed for use in Volvo I-Shift and Mack mDRIVE automated manual transmissions. Featuring a 254 mm diameter disc, this clutch is engineered to handle the high torque demands of modern 11L and 13L diesel engines while delivering smooth, consistent engagement in automated shifting applications.
Built to Eaton’s stringent durability standareds, the K4678 incorporates robust diaphragm spring technology and premium friction materials to maximize service life and reduce drivetrain vibration. Its dual-disc configuration increases torque capacity and heat dissipation, making it ideal for linehaul and vocational truck applications.
This clutch kit is designed for direct OEM replacement and typically includes the necessary components for installation, ensuring proper fitment and reliable performance. With a shipping weight around 116 lbs, it is a substantial, high-capacity unit suited for demanding commercial vehicle environments.
Key Features:
- 254 mm heavy-duty dual-disc design
- Compatible with Volvo I-Shift & Mack mDRIVE transmissions
- Optimized for 11L & 13L engine applications
- Clutch Tier CL-T1
- Smooth engagement with reduced vibration and noise
- OEM-quality construction for long service life
