Description
If you’ve got a John Deere diesel tractor that’s running hot or you’re seeing coolant puddles under the radiator, chances are good your water pump is calling it quits. This is one of those parts that works hard every time you fire up that diesel—circulating coolant through the engine block and radiator to keep everything running at the right temperature.
What You’re Getting
- Complete water pump assembly with hub included—everything you need for a proper replacement
- Direct OEM replacement that fits like the original, no modifications or adapters required
- Designed specifically for diesel tractors without air conditioning systems
- Quality construction built to handle the demands of diesel engine cooling systems
- Precision-engineered impeller and housing for reliable coolant circulation
Built for Real Farm Work
This pump is designed for the workhorses of the John Deere lineup from the 1960s and early 1970s—the 3010, 3020, 4000, 4010, and 4020 series tractors. These are the machines that built a lot of farms, whether you were pulling a plow through heavy clay, running a loader all day, or powering the PTO for harvest work. The cooling system on these diesel engines works overtime, especially during long days in hot weather.
Made to Last
Farm equipment pumps take a beating from temperature extremes, vibration, and constant use. This replacement is built with the same attention to durability as the original equipment, with quality bearings and seals designed to handle the thermal cycling and mechanical stress of diesel tractor operation.
Installation Notes
This is a straightforward replacement job if you’ve got basic mechanical skills and the right tools. You’ll need to drain the cooling system and remove the fan and pulley to access the pump. Take your time aligning the pulley when you reinstall—a crooked belt will eat through both the belt and your new pump bearings. Don’t forget to refill the cooling system slowly and bleed out all the air pockets.






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