MOOSE OFFROAD 212-2100 High Pressure 2.1 Bar Radiator Cap — Universal Japanese Fit

MOOSE OFFROAD — Maximum Boiling Point Elevation, Racing-Grade Silicone Seals, and Extreme Over-Boil Defense for High-Performance UTVs, ATVs, and Dirt Bikes

Eliminate cooling system failure in the most brutal conditions with the MOOSE OFFROAD 212-2100 High Pressure Radiator Cap. Featuring a massive 2.1 Bar pressure rating, this cap is engineered for elite-level competition and extreme trail environments where standard cooling systems fail. Designed for universal fitment on most Japanese-manufactured off-road machines, this is the ultimate safeguard for high-horsepower turbo UTVs, big-bore quads, and racing motorcycles that operate at the edge of their thermal limits.

By raising your cooling system’s maximum operating pressure to 2.1 Bar (approximately 30.5 PSI), you significantly increase the boiling point of your coolant. This allows your engine to operate at higher temperatures without the coolant flashing into steam and escaping through the overflow. The MOOSE OFFROAD 212-2100 is equipped with premium high-temperature, corrosion-resistant silicone seals. These seals provide a much more reliable and airtight interface than standard OEM rubber, ensuring your pressure remains constant even after multiple heat cycles in mud, sand, or deep snow.

• Extreme 2.1 Bar Pressure: Provides the highest level of protection against boiling, perfect for racing and high-load utility work.
• Ride Harder & Longer: Increases the thermal ceiling of your engine, preventing power loss due to heat soak and coolant loss.
• Corrosion-Resistant Silicone: Advanced silicone seals outlast standard rubber and resist degradation from aggressive coolant additives.
• Universal Japanese Design: Fits the radiator neck profile of most major Japanese brands including Yamaha, Honda, Kawasaki, and Suzuki.
• Professional Black Finish: Durable coating that resists corrosion and provides a clean, factory-racing look.
• The Ultimate Cooling Hack: The most effective and affordable upgrade to prevent engine damage from overheating.

Moto-House MX Pro Tip:

The 2.1 Bar cap is the "heavy hitter" of radiator caps. It is specifically designed for riders who are consistently pushing their machines in low-airflow, high-stress situations like deep mud bogs or technical mountain climbs. Important Safety Note: Because 2.1 Bar (30.5 PSI) is a high pressure rating, ensure your radiator hoses and water pump seals are in excellent condition. We strongly recommend pairing the MOOSE OFFROAD 212-2100 with MOOSE reinforced silicone radiator hoses to handle the increased system pressure. Always allow your engine to cool completely before swapping caps to avoid severe burns.

Pressure Rating	Seal Material	Primary Compatibility
2.1 Bar (30.5 PSI)	Advanced High-Temp Silicone	Universal Japanese (Yamaha, Honda, Suzuki, Kawasaki)

FAQ Questions

Q) Is 2.1 Bar too much pressure for my stock radiator?
A) 2.1 Bar is a racing-spec pressure. While most modern aluminum radiators handle this pressure well, it is best suited for performance machines with cooling systems in good repair.

Q) Does this cap fit KTM or Husqvarna models?
A) Typically, no. Most European models use a smaller, different style of radiator neck. This cap is specifically for the "Japanese Standard" neck found on most quads, UTVs, and metric dirt bikes.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. We are the best shop in Central Florida with lightning-fast shipping.