truck parts 612600061256 WP10 Belt Tensioner
Technical Notes
1.Compatibility
Dedicated for WP10 series diesel engines and matched to heavy-duty trucks such as HOWO and Shaanxi Heavy Duty Truck. Ensure alignment with the engine's accessory drive system specifications including belt type and mounting bolt dimensions before installation.
2.Tension Adjustment Mechanism
Equipped with a precision spring-loaded structure that automatically compensates for belt elongation caused by long-term operation. The pre-calibrated tension range complies with WP10 engine OEM standards to ensure stable power transmission without over-tightening or slack.
3.Material & Environmental Resistance
Housing is made of high-strength alloy steel, resistant to corrosion and mechanical impact.
The internal spring and bearing components are treated with high-temperature resistant lubricants, enabling reliable performance in operating temperatures ranging from -30℃ to 120℃ and high-vibration engine bay environments.
4.Installation Requirements
Use torque tools to fasten mounting bolts according to OEM specifications. The standard torque is 35-45 N·m to avoid structural deformation.
Ensure the tensioner pulley is aligned with other accessory pulleys such as water pump, generator and air compressor to prevent belt misalignment and abnormal wear.
Do not disassemble or modify the internal spring mechanism. Improper adjustment may lead to tension failure.
5.Maintenance & Replacement
Inspect quarterly. Check for pulley surface wear, bearing looseness or spring fatigue. Signs include abnormal noise during operation and visible belt slippage.
Replacement interval: Recommended to replace every 80,000-100,000 km or 3 years, whichever comes first. Replace immediately if damage is detected.
After replacement, run the engine at idle for 5-10 minutes to verify stable tension and no abnormal noise.
6.Safety Precautions
Perform installation or maintenance only when the engine is cooled down to avoid scalding.
Disconnect the battery power before operation to prevent accidental engine startup.
Use genuine or OEM-equivalent replacement parts to ensure compatibility and performance consistency.
Basic Parameters
Key Advantages
- Precise Tension Control – Calibrated spring-loaded mechanism maintains optimal tension, auto-compensating for belt elongation to ensure stable power transmission.
- Durable Construction – High-strength alloy steel housing and high-temperature resistant internal components enable reliable performance in harsh engine environments.
- Perfect Compatibility – Dedicated for WP10 diesel engines and heavy-duty trucks such as HOWO and Shaanxi Heavy Duty Truck, no modifications needed.
- Easy Installation & Maintenance – Drop-in design fits original mounting points; simple quarterly inspections focus on wear and noise.
- Cost-Effective – Minimizes belt and accessory wear, with a long replacement interval to reduce maintenance frequency and operational costs.
- Smooth & Quiet Operation – Precision pulley and quality bearings reduce friction, eliminating abnormal noise for stable rotation.
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