Description

When you notice your temperature gauge creeping up or spot coolant dripping under your John Deere, you’re looking at a water pump that’s calling it quits. A failing pump doesn’t just mean downtime—it can lead to expensive engine damage if you don’t catch it early. This complete water pump assembly with hub keeps coolant flowing properly through your diesel engine, preventing those heart-stopping overheating moments that always seem to happen during the busiest times.

What You’re Getting

Complete assembly with integrated hub saves you time and ensures proper fit
Heavy-duty construction designed to handle the demands of big diesel engines
Quality impeller design moves maximum coolant volume to keep temperatures steady
Direct replacement that bolts right in without modifications
Built to OEM specifications for reliable, long-lasting performance

Built for Real Farm Work

This water pump fits the workhorses of many farm operations—the John Deere 4240, 4440, 4640, 4840, and the big 8430 and 8440 tractors. These machines handle everything from heavy tillage and planting to harvest work, and they need a cooling system that can keep up with the demands of those 466 and 466T diesel engines under load.

Made to Last

Farm tractors work hard in all kinds of conditions, and this water pump is built to match that toughness. The cast construction handles the constant vibration and temperature cycles that come with diesel engine operation, while the quality seals keep coolant where it belongs—circulating through your engine, not leaking onto the shop floor.

Installation Notes

Plan to drain your cooling system completely and have fresh coolant ready for refill. Clean the mounting surfaces thoroughly—old gasket material or corrosion causes leaks down the road. While you’re in there, it’s smart to check your radiator hoses, belt tension, and thermostat since they’ve all been through the same heat cycles as your old pump.