Description
When you see coolant puddles under your John Deere or notice that temperature gauge creeping up, it’s usually this water pump calling for attention. A failing water pump doesn’t just make a mess—it can turn a simple repair into a major engine rebuild if coolant stops flowing properly. This replacement pump gets your cooling system back to doing its job, protecting your expensive engine from overheating damage.
What You’re Getting
- Direct replacement design that bolts on just like the original
- Robust construction built to handle the constant operation of farm work
- Quality seals and bearings that prevent leaks and ensure long service life
- Proper flow rate to keep your engine running at optimal temperature under load
Built for Real Farm Work
This water pump fits the workhorse models of John Deere’s 40 Series lineup—from the 4240 utility tractors up through the big 4840 and 8440 row-crop machines, plus the 8430 from the 8030 Series. Whether you’re running a 4440 on hay equipment all day or using that 8440 for heavy tillage work, these are the tractors that earn their keep in demanding conditions where cooling system reliability matters most.
Made to Last
Farm tractors don’t get babied, and this pump is built accordingly. The cast iron construction resists corrosion while heavy-duty bearings handle belt tension and rotational forces through thousands of hours of operation. Quality shaft seals keep coolant where it belongs while keeping dirt and debris out of the system.
Installation Notes
Flush the cooling system before installation to remove debris that could damage the new pump, check belt condition and tension, and use new coolant rather than reusing old fluid that may contain contaminants. While you’ve got the system apart, it’s a good time to inspect your radiator hoses and thermostat—cooling system components often fail together.
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