KEMIMOTO CVT Drive Belt for Polaris Ranger — OEM 3211218, Heavy‑Duty Reinforced (Ranger 1000 & SP 570 2020–2026)

KEMIMOTO's Heavy Duty CVT drive belt (OEM #3211218) is a direct-fit replacement designed to restore reliable power transfer and extended service life for compatible Polaris Ranger models.

This replacement belt is engineered for UTV duty: built from reinforced rubber and advanced poly cords, it balances heat resistance, tensile strength, and wear performance so your vehicle maintains steady RPM and consistent acceleration under load. It fits specific Ranger SP 570/CREW SP 570 (2022–2026) and Ranger 1000/CREW 1000 (2020–2026) models, excluding XP 1000 and full-size 570 versions. The belt’s geometry—dual-sided fins, trapezoidal top notches, and circular interlocking teeth—improves cooling and flexibility to help prevent premature failures in tough conditions.

Which Ranger models will this KEMIMOTO belt fit?

This belt replaces OEM part number 3211218 and fits RANGER SP 570 and CREW SP 570 (model years 2022–2026) plus RANGER 1000 and CREW 1000 (2020–2026). It is not compatible with XP 1000 or the full-size 570 model.

• Compatible: RANGER SP 570 / CREW SP 570 (2022–2026)
• Compatible: RANGER 1000 / CREW 1000 (2020–2026)
• Not compatible: XP 1000 and full-size 570
• OEM reference: replaces part #3211218

How does the belt design improve heat dissipation and durability?

The belt’s dual-sided fin layout and engineered notch-and-tooth pattern increase surface area for airflow while maintaining flexibility where the belt bends around clutches. These features reduce trapped heat and distribute stresses more evenly, which lowers the chance of cracking or delamination during hard use.

• Dual-sided fins boost cooling across the belt surface
• Trapezoidal top notches improve bending flexibility
• Circular interlocking teeth distribute load uniformly
• Reinforced poly cords resist elongation under tension

What materials and construction make this belt heavy duty?

Constructed from high-grade rubber combined with advanced poly cord reinforcement and an inner elastic nylon fabric, the belt prioritizes tensile strength, wear resistance, and dimensional stability. These materials help it withstand repeated high-load cycles and resist punctures and abrasion on off-road vehicles.

• Premium rubber compound for heat and wear resistance
• Advanced poly cords for lightweight, high strength
• Nylon inner fabric for excellent stretch resistance
• Designed to maintain shape and performance under strain

How should I install and break in the new CVT drive belt?

Installation follows OEM practice: remove the clutch cover, clean the clutch housing and exhaust ports, and clear any debris from the sheaves before fitting the new belt. Avoid prying on the belt; seat it gently. After installation, perform a heat cycle with the clutch cover installed to allow the belt to seat and stabilize.

• Step 1: Remove clutch cover and inspect clutch area
• Step 2: Clean dust, dirt, and debris from ports and sheaves
• Step 3: Install belt without prying; follow OEM alignment
• Step 4: Run a controlled heat cycle to seat the belt

Who is this for: Riders and technicians who own compatible Polaris Ranger SP 570, CREW SP 570, RANGER 1000, or CREW 1000 models and need a rugged, OEM-replacement CVT belt that improves cooling and resists stretch and wear. It's intended for off-road enthusiasts, fleet operators, and professionals who demand a durable, long-lasting drive belt built to handle heavy loads and frequent use—provided the vehicle model matches the listed compatibility.