{"id":18097,"date":"2026-04-13T12:05:25","date_gmt":"2026-04-13T10:05:25","guid":{"rendered":"https:\/\/kasparts.com\/?post_type=product&p=18097"},"modified":"2026-05-23T11:59:14","modified_gmt":"2026-05-23T09:59:14","slug":"tendeur-de-courroie-en-v-howo-az9725521272","status":"publish","type":"product","link":"https:\/\/kasparts.com\/en\/product\/tendeur-de-courroie-en-v-howo-az9725521272\/","title":{"rendered":"V-Belt Tensioner \u2013 Howo \u2013 AZ9725529272"},"content":{"rendered":"

Howo V-Belt Tensioner (AZ9725521272): Engine Stability and Performance<\/h1>\n

The guarantor of flawless auxiliary transmission<\/h2>\n
The belt tensioner, reference AZ9725521272<\/b><\/a>, is the central regulating body for the belt drive system of trucks Sinotruk Howo<\/b> (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<\/b>, This automatic tensioner compensates for belt stretching and absorbs engine block vibrations, thus preventing slippage, whistling and premature breakage.<\/p>\n

Mechanical engineering and resistance to heavy loads<\/h3>\n
Technical transparency is our priority to ensure the continuity of your logistics and construction site operations.<\/p>\n
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High-Performance Torsion Spring:<\/b> Rigorous internal calibration to maintain constant pressure, regardless of engine speed variations.<\/p>\n<\/li>\n
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Reinforced Ball Bearing:<\/b> Integration of high-precision sealed bearings, lubricated for life to withstand construction site dust and high radial stresses.<\/p>\n<\/li>\n
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Robust Guide Roller:<\/b> Made from a high heat-resistant metal or composite alloy, limiting friction wear on the back of the belt.<\/p>\n<\/li>\n
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Integrated Vibration Damper:<\/b> Designed to stabilize belt alignment and eliminate destructive jolts during sudden acceleration phases.<\/p>\n<\/li>\n<\/ul>\n
Optimized benefits for your mileage profitability<\/h4>\n\n\n\n\n\n\n\n\n
Technical Advantage<\/strong><\/td>\n Impact on operations<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Self-regulating voltage<\/b><\/span><\/td>\n Maximum protection of alternator and water pump bearings against overvoltage.<\/span><\/td>\n<\/tr>\n
Perfect geometric alignment<\/b><\/span><\/td>\n Eliminates the risk of the belt coming loose or fraying under full load.<\/span><\/td>\n<\/tr>\n
Heavy Duty Design<\/b><\/span><\/td>\n Excellent resistance to high engine compartment temperatures in tropical climates.<\/span><\/td>\n<\/tr>\n
Original Direct Mount<\/b><\/span><\/td>\n Quick replacement (Plug-and-Play) on the original Sinotruk engine block fixings.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Specifications and Quality Standards<\/h3>\n\n\n\n\n\n\n\n\n\n
Attribute<\/strong><\/td>\n Specification<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Sinotruk OE Reference<\/b><\/span><\/td>\n AZ9725521272 \/ AZ9725521276 (Interchangeable)<\/span><\/td>\n<\/tr>\n
Vehicle Application<\/b><\/span><\/td>\n Sinotruk Howo 371, Howo A7, Howo TX Trucks<\/span><\/td>\n<\/tr>\n
Engine Compatibility<\/b><\/span><\/td>\n WD615, WD12, D12 series (Euro 2 \/ Euro 3)<\/span><\/td>\n<\/tr>\n
Part Type<\/b><\/span><\/td>\n Control Tensioner Pulley \/ Belt Tensioner<\/span><\/td>\n<\/tr>\n
Sustainable Commitment<\/b><\/span><\/td>\n Highly durable materials to counteract machine downtime on the tracks.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Transparent expertise for construction fleets<\/h3>\n
The belt tensioner Howo AZ9725521272<\/b> 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.<\/p>\n
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Ref: <\/b>AZ9725521272 \/ AZ9725529272<\/span>