CVT Drive Belt 25300-F12-0000 Fit for Hisun HS400 400CC 25300-003-0000 V-Belt

CVT Drive Belt for Hisun HS400 400CC

This CVT drive belt is a direct replacement for Hisun HS400 400CC models, transferring power from the engine to the transmission for smooth acceleration. It references OEM cross-reference numbers 25300-F12-0000 and 25300-003-0000, ensuring a proper match for your utility vehicle.

Overview

This CVT drive belt is engineered to match the exact dimensions and material construction of the original belt in Hisun HS400 400CC vehicles. It delivers reliable power transfer through the continuously variable transmission, keeping your UTV moving through work or trail. This CVT drive belt replaces worn belts to restore peak performance and prevent belt slippage.

Built For Performance

• Constructed with aramid cord for high tensile strength and low stretch
• Special rubber compound resists heat buildup during heavy load operations
• Precision-ground edge for smooth engagement and reduced vibration
• Matches OEM dimensions for a correct fit on the drive and driven pulleys
• Designed as a drop-in replacement for OEM part 25300-F12-0000

Fits These Machines

• for Hisun HS400 400CC
• for Hisun HS400-2 400CC
• for Hisun HS400-3 400CC

On-The-Job Use

• Replacing a glazed or worn belt that causes slow takeoff or reduced top speed
• Carrying a spare belt for remote work sites where towing is not available
• Servicing the CVT system during seasonal maintenance intervals

Specs At A Glance

Good To Know

Q: How do I know if the belt is too worn to use? A: Measure the belt width at its narrowest point; if it is noticeably narrower than a new belt or has cracks, replace it immediately.

Q: Can I install this belt without special tools? A: Yes, but you must remove the CVT cover and relieve tension by loosening the adjustable pulley; follow your service manual for the correct torque.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.