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  • Sinotruk HOWO Automatic Belt Tensioner Pulley Assembly (Part No. VG1246060022)

Sinotruk HOWO Automatic Belt Tensioner Pulley Assembly (Part No. VG1246060022)

The VG1246060022 Automatic Tension Pulley Assembly is a vital component in the HOWO parts ecosystem, engineered to maintain precise tension across your truck's belt-driven accessories.

Technical Specifications

Feature Details
Part Number VG1246060022
Component Name Automatic Tension Pulley Assembly
Application Engine Belt Drive System (Alternator/Fan Belt)
Engine Compatibility Sinotruk WD615, WD618, D12, MC11 Series
Truck Models HOWO 336, 371, 420, T7H, A7, TX
Material High-Grade Cast Aluminum Housing / Steel Pulley
Weight 1.65 kg
Main Function Automatically adjusts belt tension to prevent slippage and reduce vibration

As a professional supplier of HOWO parts, we recommend checking these three signs before replacement:

  1. Visual Alignment: Ensure the pulley is perfectly parallel with other engine pulleys. If the VG1246060022 is tilted, it indicates internal pivot bushing wear.

  2. Spring Tension: With the engine off, try to move the tensioner arm with a wrench. If it feels stuck or lacks resistance, the internal spring has failed.

  3. Bearing Noise: Spin the pulley manually. Any grinding or "dry" sounds mean the internal bearings are compromised and need immediate replacement.