Product Description:

 
Tensioner pulley
OE NO.:  31339795 31251743

Applicable vehicle type: For Volvo

The automotive tensioner pulley is a critical component within the engine's drive train system, designed to automatically regulate the tension of the timing belt or auxiliary belts. This ensures the belts operate stably under appropriate tension. It effectively compensates for elongation caused by wear and ageing, preventing slippage and tooth skipping, thereby safeguarding the proper functioning of auxiliary components such as the alternator, air conditioning compressor, and water pump.

As a wear part, the tensioner pulley is typically recommended for replacement alongside the belt to ensure long-term reliable operation of the drive system.

The tensioner pulley continuously applies appropriate pressure to the belt via an elastic clamping mechanism:

• Dynamic adjustment: The tensioner presses against the belt and follows its movement, altering the pulley wrap angle to automatically adjust tension and compensate for belt elongation.
• Resistance damping: An internal resistance mechanism (such as a torsion spring) absorbs vibrations generated during belt operation, preventing premature wear. Torsion spring parameters directly influence torque and resistance; optimising the mean diameter through proper design enhances resistance values.
• Pressure Retention: Utilises springs or hydraulic pressure to generate sustained tension, ensuring the belt presses against the drive pulley at optimal pressure to guarantee transmission torque and friction.

Core Function: Maintains optimum belt tension – insufficient tension causes slippage and tooth skipping; excessive tension accelerates belt and bearing wear.

Multiply Brands Auto Parts We Offer:

Why choice us:

1. Industry Experience: 20 years of experience in the auto parts industry, with in-depth market and product knowledge.

2. Professional Team: A team of experienced experts who can professionally answer all customer inquiries about auto parts.

3. Direct Partnerships: Direct partnerships with multiple auto repair shops, offering first-hand industry feedback and technical support.

4. High-Quality Products: Providing high-quality auto parts to ensure reliability and durability.

5. Comprehensive Inventory: A wide range of product lines and ample inventory to meet diverse customer needs.

6. Quick Response: Offering rapid response services to quickly address customer questions and needs.

7. Customized Services: Providing customized part solutions to meet specific vehicle or customer requirements.

8. Technical Support: Offering professional technical support and installation guidance.

9. After-Sales Service: A strong after-sales service network to ensure customers receive necessary support after product use,If you have any questions after receiving the goods, please contact us in time and we will provide the best solution.

10. Price Advantage:Competitive pricing due to long-standing supply chain relationships.

11. Quality Assurance:All products go through strict quality control processes to meet industry standards.

12. Fast Shipping: Over 500000+ in stock, we can ship them in a short time.

Company Profile:

Beijing Huarui Jietong Trading Co., Ltd. has been engaged in the automotive aftermarket for 20 years and is a professional supplier of auto parts. Located in the capital of China, Beijing, we have factories in Beijing, Guangzhou, and Jiangsu, which enable us to meet our customers' demands for quality and quantity in a timely and efficient manner.
 

 
The company primarily focuses on accessories for Land Rover, Jaguar, and Volvo product series, including Air Conditioning Systems, Braking Systems, Driving Systems, Engine Systems, Cooling Systems, Auto Body Systems, Steering Systems, Suspension Systems, Transmission Systems, and other related parts. Facing the trend of economic globalization, our company is committed to bringing better products and services to the world, providing high-quality products and services for domestic and foreign enterprises and customers.
 
We welcome any inquiries and look forward to your contact.
 
 
 

 
 
 
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