Description

When your temperature gauge starts climbing or you notice coolant spots under your tractor, it’s time to replace that water pump before you’re stuck in the field with an overheated engine. This heavy-duty water pump with protruding pulley design is built specifically for David Brown tractors with the AD4/55 four-cylinder engine, keeping coolant flowing properly so you can finish the job at hand.

What You’re Getting

Protruding pulley that extends from the housing for proper belt alignment and tension
Complete assembly includes mounting gasket and hardware—everything you need
Heavy-duty construction that handles the constant operation of farm work
Precision-engineered impeller moves coolant efficiently through your entire system
4-hole hub mounting pattern for secure, vibration-resistant installation

Built for Real Farm Work

This pump fits the David Brown 990-996 utility tractors that were popular for mixed farming operations, the mid-range 1210-1212 models used for hay production and loader work, and the turbocharged 1410-1412 series tractors built for heavy cultivation and commercial farming. It also fits Case 580F backhoe loaders that use the same AD4/55 engine for construction and agricultural drainage work.

Made to Last

Farm equipment cooling systems work hard, especially during long days in dusty fields or pulling heavy loads. This pump uses heavy-duty bearings and quality seals that stand up to temperature swings, vibration, and the demands of agricultural use. The cast housing resists corrosion from coolant additives while maintaining proper flow rates your engine needs.

Good to Know

Make sure you need the protruding pulley version—if your tractor has a flat-back pulley design, you’ll want part 3791P instead. Installation takes a few hours including draining and refilling the cooling system. While you’re at it, replace those old radiator hoses and check your thermostat. A fresh coolant flush removes any debris and gives your cooling system a clean start.