Heavy Duty Water Pump Kit For Cummins 4B 4BT 6B 6BT Engines Replacement 3802970 Compatible With Easy Install And Durable Seals For Long Lasting Cooling System Performance

Heavy Duty Water Pump Kit for 4B/4BT/6B/6BT Engines
✔️ OEM 3802970/3903749; cast iron housing; stamped impeller

This heavy-duty water pump kit is built to replace worn water pump components in 4B, 4BT, 6B, and 6BT diesel engines. It’s commonly used in cooling system maintenance and engine rebuilds where quick, reliable pump replacement is needed.

✅ Fits Cummins 4B/4BT/6B/6BT engines with OEM references 3802970 and cross-reference 3903749.
✅ Cast iron pump housing and stamped steel impeller for durability.
✅ Reverse-rotation impeller and belt-drive configuration.
✅ Includes water pump, O-ring, and bushing for complete install.

💡 What is a water pump kit used for in a diesel engine cooling system?

Used to replace worn pump components and seals, restoring coolant flow and preventing overheating in engines that rely on belt-driven cooling.

- Restores coolant flow and engine cooling efficiency in diesel engines - Includes water pump, O-ring, and bushing for a complete replacement - Cross-references OEM numbers 3802970 and 3903749 for compatibility ✝️