Upper Thermostat Housing for Perkins 1004 and 1006 Series Phaser Engines

Description

When coolant starts seeping from your thermostat housing or you notice temperature swings during heavy work, that upper housing might be telling you it’s time for replacement. When your temperature gauge starts creeping up during heavy field work, you need to act fast – and a cracked or warped housing can cause the same symptoms as a bad water pump or stuck thermostat. This upper thermostat housing keeps your Perkins engine’s cooling system sealed tight where it counts most.

What You’re Getting

• Precision-cast housing designed specifically for Perkins Phaser engines
• Proper mounting points and coolant passages to match your original
• Durable construction that handles the thermal cycling of diesel engines
• Direct replacement – no modifications needed for your 1004.4 or 1006.6 engine

Built for Real Farm Work

This housing fits Perkins 1004 and 1006 Series engines – the workhorses found in countless tractors doing everything from tillage to hay production. These 1004.4 engines are known for reliability, but they generate serious heat under load, which is exactly why the thermostat housing needs to be built right. Whether you’re running a loader all day or pulling heavy implements, this part keeps your cooling system functioning properly.

Made to Last

Diesel engines create serious temperature swings, and the thermostat housing takes the brunt of it. This replacement is cast to handle those thermal stresses without cracking or warping. The material and design match what Perkins originally specified, so you get the same durability that came with your engine from the factory.

Good to Know

Replacing a water pump on these engines requires draining the cooling system completely. While you’re at it, flush the system and replace old coolant – and that’s good advice for thermostat housing work too. Clean all mating surfaces thoroughly and use new gaskets with appropriate sealant. Check your thermostat condition during the job, as a sticking thermostat can cause the same symptoms as pump failure.