1025420FB010XZ Automatic Belt Tensioner Elastic Spring Serpentine Tension Assembly For JAC HFC4DB2-2E Light Truck Diesel Engine Drive Parts
Product Details
| OEM: | 1025420FB010XZ | Vehicle Model: | HFC4DB2-2E |
|---|---|---|---|
| Size: | D58*h26 | ||
| Highlight |
1025420FB010XZ,1025420FB010XZ Automatic Belt Tensioner,Automatic Belt Tensioner for Light Truck |
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Product Description
Product Introduction 1025420FB010XZ Belt Tensioner is an automatic spring tensioning unit built for HFC4DB2-2E engine auxiliary drive system. It provides constant preload to the multi-rib belt, compensating belt elongation and dynamic load changes when driving alternator, water pump and other accessories. This aftermarket replacement tensioner resolves annoying squealing noise during acceleration, unstable accessory operation and accelerated belt wear caused by spring fatigue, damping rubber aging and rough bearing rotation of old tensioners. Reliable tension control keeps transmission stable and avoids sudden accessory failure for light trucks that frequently run stop-and-go urban delivery routes.
Product Advantages High-performance torsion spring maintains steady tension output under cyclic temperature change and engine vibration. Integrated damping structure absorbs impact and tension oscillation. Precision bearing and hardened pulley ensure low-noise, long-service sliding performance. Each tensioner is inspected for travel range, torsion force and pulley rotation before shipment, OEM mounting hole layout for direct bolt-on replacement.
| Item | Parameter |
|---|---|
| Part Number | 1025420FB010XZ |
| Product Name | Belt Tensioner |
| Matching Engine | HFC4DB2-2E |
| Material | Cast Alloy Housing, Torsion Spring, Idler Pulley with Bearing |
| Feature | Automatic Belt Tension, Vibration Damping, Prevent Belt Slippage |
| MOQ | Negotiable |
| Application | Engine Auxiliary Drive Belt Tension Mechanism |
Applicable Models Compatible with light-duty commercial vehicles equipped with HFC4DB2-2E diesel engine, widely used for township logistics and short-haul cargo delivery.
FAQ
Q1: How to distinguish tensioner failure from a worn belt?
A1: A bad tensioner makes noise even with a new belt; worn belt squeal disappears after belt replacement.
Q2: What damage will a seized tensioner pulley bring?
A2: The belt will rub and burn quickly, leading to loss of charging or cooling functions.
Q3: What preparation should be done before installing this tensioner?
A3: Check belt condition, clean debris, confirm all accessory pulleys rotate smoothly without jamming.
Product Highlights
Product Introduction 1025420FB010XZ Belt Tensioner is an automatic spring tensioning unit built for HFC4DB2-2E engine auxiliary drive system. It provides constant preload to the multi-rib belt, compensating belt elongation and dynamic load changes when driving alternator, water pump and other ...
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