Polaris Pro R Boost OEM Drive Belt 3212366

Pro R Boost OEM Drive Belt

When you're pushing forced-induction horsepower out of a 2.0L 4-cylinder engine, standard CVT belts simply won't cut it. The all-new Polaris RZR Pro R Boost demands extreme-duty clutching, and Polaris engineered the genuine #3212366 drive belt specifically to match the larger clutch architecture and withstand the brutal torque spikes, elevated boost pressures, and intense sheave clamping forces produced by the factory-turbocharged ProStar Fury powerplant.

Whether you need a fresh primary belt or the ultimate trail-side spare, never gamble your ride on inferior compounds. Engineered with an upgraded high-modulus aramid-tensile cord package and advanced heat-resistant elastomer compounds, part number 3212366 resists thermal degradation, cord delamination, and longitudinal stretch under continuous wide-open throttle dune pulls and aggressive desert acceleration.

Key Highlights:

• Application: Polaris RZR Pro R Boost & Pro R 4 Boost (Turbocharged 2.0L 4-Cylinder)

• OEM Part Number: 3212366

• Clutch Compatibility: Engineered specifically for the larger-diameter Pro R Boost clutch assembly

• Tensile Core: High-modulus continuous aramid reinforcement cords for near-zero stretch

• Compound: High-temp aramid-loaded elastomer engineered for severe thermal loads

• Tooth Profile: Dual-cog architecture optimized for aggressive wrap, clutch cooling, and high sheave clamp force

• Durability: Factory-calibrated for high torque transfer without cord fraying or edge hourglassing

What Makes the 3212366 Boost Belt Different?

• Larger Clutch Sheave Geometry: Designed specifically around the revised clutch dimensions and larger driven pulley of the Pro R Boost platform, ensuring exact center-to-center wrap and correct shift geometry.

• High-Boost Clamping Force Resistance: The Pro R Boost utilizes aggressive primary spring rates and heavy shift weights to keep boost from slipping the belt. The 3212366 features reinforced sidewall construction to prevent edge rollover, pinching, and dimensional distortion under extreme side-load clamping.

• Elevated Thermal Threshold: Turbocharged engines create massive under-cover engine bay temperatures. This belt uses a specialized high-temp elastomer compound formulated to withstand continuous heat without hardening, glazing, or losing grip.

• Reinforced Aramid Tensile Members: Uses advanced continuous-wound aramid cords with exceptional tensile modulus, virtually eliminating cord stretch that leads to RPM drop and clutching inconsistency.

• Optimized Dual-Cog Flex Dynamics: Both top and bottom cogs are cut to maximize convective airflow through the clutch box while optimizing bending stiffness around secondary back-shifting.

Features:

• 100% Genuine Polaris OEM Quality: Zero guessing on deflection, width, or length—drops right in with exact factory tolerances and clutch alignment.

• Built for Turbocharged ProStar Fury Power: Purpose-built to endure aggressive launches, anti-lag hits, and sustained full-throttle pulls across sand dunes and desert tracks.

• Resists Belt Slip & Glazing: Engineered friction coefficient provides immediate bite into the clutch sheaves without excessive slippage or premature surface glazing.

• Essential Trail Spare: Keep one installed and one secured in your machine—never get stranded miles into the backcountry without the correct boosted-spec belt.

What's Included:

• (1) Genuine Polaris OEM Extreme-Duty CVT Drive Belt (Part #3212366)

Fitment:

Direct-fit OEM replacement drive belt engineered exclusively for factory-turbocharged Polaris RZR Pro R Boost platforms:

• Polaris RZR Pro R Boost (2-Seat): 2027+ (All trim levels and editions)

• Polaris RZR Pro R 4 Boost (4-Seat): 2027+ (All trim levels and editions)