MOOSE OFFROAD 100-2120-PU Radiator Cap — 13 PSI / 0.9 Bar — Polaris RZR / Ranger / Sportsman

MOOSE OFFROAD — Automotive-Quality Sealing, Stamped Steel Durability, and Precision Pressure Control for Polaris and Arctic Cat UTVs/ATVs

Maintain your cooling system’s integrity with the MOOSE OFFROAD 100-2120-PU Radiator Cap. Designed as a direct automotive-quality replacement for a massive range of Polaris and Arctic Cat machines, this 13 PSI (0.9 Bar) cap is the essential link in preventing coolant loss and engine overheating. Whether you are piloting a modern RZR XP Turbo through the dunes or putting a classic Sportsman 500 to work on the farm, a reliable radiator cap is your first line of defense against thermal damage.

This cap is constructed from heavy-duty stamped steel for long-lasting structural rigidity and finished in a classic silver zinc coating to resist corrosion. It features a high-grade rubber bottom seal engineered to maintain a consistent 13 PSI of pressure, ensuring your coolant remains at the optimum boiling point for off-road operation. From the latest RZR PRO XP Ultimate to vintage Magnum and Xplorer models, the MOOSE OFFROAD 100-2120-PU offers a factory-perfect fit and professional-grade performance.

• Reliable Pressure Control: Rated at 13 PSI (0.9 Bar) to match OEM cooling system specifications for Polaris and Arctic Cat.
• Automotive-Grade Quality: Stamped steel construction provides superior durability compared to budget plastic alternatives.
• Superior Sealing: High-quality rubber bottom seal prevents pressure leaks and ensures coolant remains in the radiator.
• Corrosion Resistance: Silver stamped steel finish protects the cap from the moisture and mud of off-road environments.
• Massive Compatibility: Fits hundreds of models ranging from the RZR XP 1000 and Ranger 1000 to classic Sportsman quads.
• Precision Fit: Designed for a seamless "twist-and-lock" installation on factory radiator necks.

Moto-House MX Pro Tip:

The radiator cap is one of the most overlooked maintenance items on a Polaris RZR or Ranger. Over time, the internal spring can weaken and the rubber seal can dry out, leading to mystery coolant loss or "bubbling" in your overflow tank. If you see white residue around your radiator neck, it’s time to replace it. The MOOSE OFFROAD 100-2120-PU is a cost-effective way to restore your cooling system's pressure. Safety First: Never open your radiator cap while the engine is hot. Wait at least 30 minutes for the system to cool completely to avoid injury.

Pressure Rating	Seal Material	Fitment Range
13 PSI (0.9 Bar)	Heavy-Duty Rubber	1990-2024 Polaris & Arctic Cat (Multi-Fit)

FAQ Questions

Q) Is this a high-pressure upgrade?
A) No, this is an OEM-standard 13 PSI (0.9 Bar) replacement. It is designed to match the factory specifications for a reliable, stock-feel performance.

Q) Does this fit the newer RZR PRO XP and Turbo R models?
A) Yes, this cap is compatible with the RZR PRO XP, Turbo R, and XP 1000 models as listed in the fitment guide.

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