Dirt Bike Radiator Caps

Coolant temperature management is critical for engine longevity and performance—especially under racing conditions where thermal stress can lead to catastrophic failure. This MOOSE RACING radiator cap combines precision engineering with integrated...

Engine temperature management is critical to preventing overheating and premature coolant system failure—especially in high-performance applications where thermal stress pushes stock components to their limits. This MOOSE RACING radiator cap combines...

Engine coolant temperature is critical to maintaining peak performance and preventing catastrophic overheating—especially in high-stress racing conditions. This MOOSE RACING radiator cap eliminates guesswork by integrating a precision temperature gauge...

Stock radiator caps limit your cooling system's pressure, causing coolant to boil during hard riding and track sessions. The MOOSE RACING High Pressure Radiator Cap raises your system's maximum operating pressure, increasing coolant boiling point and...

Stock radiator caps limit your cooling system's pressure, leaving your engine vulnerable to boiling coolant and thermal derating under sustained high-performance driving. The MOOSE RACING High Pressure Radiator Cap raises your system's maximum operating...

A quality radiator cap is a critical component of your cooling system—it maintains proper pressure, prevents coolant loss, and protects your engine from overheating under demanding conditions. The MOOSE RACING 1.1 bar cap delivers reliable thermal...

Engine coolant boils when your cooling system can't handle the pressure generated during aggressive riding or racing, leaving you stranded with an overheated engine. The MOOSE RACING High Pressure Radiator Cap solves this problem by raising your system's...

A radiator cap might seem like a minor component, but it's critical to your cooling system's performance—especially under high-load racing conditions. The CV4 Radiator Cap maintains precise blow-off pressure through premium spring wire construction,...

Maintaining optimal coolant pressure is critical for preventing boil-over and ensuring efficient heat dissipation from your cylinder head—especially under sustained high-RPM operation. The CV4's 2.0 bar pressure rating increases your coolant's boil...

A quality radiator cap is one of the most underrated components in your cooling system—it directly controls your coolant's boiling point and heat dissipation efficiency. The CV4 Radiator Cap (1.4 bar) uses premium spring wire to maintain precise blow-off...

Stock radiator caps operate at a fixed pressure rating that may not be sufficient for sustained high-performance riding, leading to coolant loss and potential overheating. The Twin Air 2.0 bar cap increases system pressure, raising the boiling point of...

Radiator cap pressure directly controls your coolant's boiling point—upgrade to 2.0 bar and you'll maintain consistent engine temperatures even during sustained high-load riding or hot-weather conditions. Stock caps often fail under extreme stress,...

Stock radiator caps are engineered to factory minimums—which means they can't handle the sustained heat loads of aggressive riding, track sessions, or extended high-RPM operation. The Twin Air 1.8 Bar Radiator Pressure Cap raises your coolant's boiling...