Pressure Relief Radiator Cap for David Brown 700/800/900/1200/1400 Series Tractors

Description

When you’re out pulling that disc harrow through heavy ground or running the big round baler on a 90-degree day, the last thing you want is to see that temperature gauge climbing toward the red. A radiator cap might look simple, but it’s actually a precision pressure valve that keeps your cooling system working right by maintaining correct system pressure, preventing coolant loss and overheating problems. If your old cap can’t hold pressure anymore, you’ll lose coolant through overflow and risk serious engine damage.

What You’re Getting

• Calibrated pressure relief valve that raises coolant boiling point by about 45 degrees
• Quality dual-seal design that prevents coolant loss and air infiltration
• Vacuum valve brings coolant back from overflow as the system cools down
• Spring-loaded safety mechanism that releases pressure before the cap comes completely off
• Durable construction that handles the heat cycles and vibration of farm work

Built for Real Farm Work

This cap fits David Brown 700, 800, 900, 1200, and 1400 series tractors – whether you’re running a 770 doing chores around the farmyard, an 885 pulling hay equipment, or a 1412 working heavy tillage tools. These tractors work hard under load, and maintaining proper cooling system pressure is critical during heavy tasks like plowing, baling, or grinding feed when your engine’s generating serious heat.

Made to Last

This cap features a spring-loaded pressure valve that’s calibrated to your tractor’s specifications and a rubber gasket that creates a reliable seal without compressing and failing like worn caps do. The internal components resist corrosion from coolant additives, and the whole assembly is built to handle temperature swings, vibration, and the occasional bump from equipment or tree branches.

Good to Know

Never remove a radiator cap from a hot engine – wait until it’s completely cool to avoid dangerous steam burns. Check the radiator neck for damage or corrosion that could prevent sealing, and clean the sealing surface if needed. When installing, push down and turn until fully seated – a loose cap won’t maintain the pressure your cooling system needs to work properly.