Howo V-Belt Tensioner (AZ9725521272): Engine Stability and Performance

The guarantor of flawless auxiliary transmission

The belt tensioner, reference AZ9725521272, is the central regulating body for the belt drive system of trucks Sinotruk Howo (equipped with WD615 or D12 engines). Its role is to maintain constant and precise tension on the belt that drives vital components such as the alternator, water pump, and air conditioning compressor. With a view to sustainable maintenance, This automatic tensioner compensates for belt stretching and absorbs engine block vibrations, thus preventing slippage, whistling and premature breakage.

Mechanical engineering and resistance to heavy loads

Technical transparency is our priority to ensure the continuity of your logistics and construction site operations.

• High-Performance Torsion Spring: Rigorous internal calibration to maintain constant pressure, regardless of engine speed variations.

• Reinforced Ball Bearing: Integration of high-precision sealed bearings, lubricated for life to withstand construction site dust and high radial stresses.

• Robust Guide Roller: Made from a high heat-resistant metal or composite alloy, limiting friction wear on the back of the belt.

• Integrated Vibration Damper: Designed to stabilize belt alignment and eliminate destructive jolts during sudden acceleration phases.

Optimized benefits for your mileage profitability

Specifications and Quality Standards

Transparent expertise for construction fleets

The belt tensioner Howo AZ9725521272 This is an essential safety component for operators of Sinotruk tipper trucks, mixer trucks, and road tractors. Choosing this part from Kasparts ensures that your engine peripherals remain fully powered, preventing engine overheating due to water pump failure or power outages during operations.