Product Description:

Auto belt tensioner​
OE number: LR034128
Applicable vehicle type: For Land Rover



The tensioner pulley for the car belt is a crucial regulating component in the engine front-end accessory drive system (FEAD). Its primary function is to automatically or manually maintain the optimal tension of the belts (such as timing belts, accessory V-belts), preventing slippage, abnormal noise, or detachment, ensuring that the engine, water pump, alternator, air conditioning compressor, and other accessories operate normally and efficiently.


Core functions and importance:

• Provide accurate tensioning to keep the belt in optimal working condition, avoiding faults caused by being too loose (slippage, noise, accessory power loss) or too tight (bearing premature wear, belt stretching damage).
• Compensate for belt elongation: Belts naturally stretch over long-term use, and the tensioner can automatically or manually adjust to compensate for this change.
• Absorb system vibrations: Dampen vibrations generated by engine operation, protecting the belt and accessories, and enhancing system smoothness.
• Guide belt path: As a guide pulley, ensure the belt is correctly wrapped around all pulleys.

Common faults:

1. Bearing damage: The most common fault. Caused by dried-up lubricant and failed seals, leading to wear and jamming.
2. Spring force attenuation: Fatigue of the automatic tensioner spring, resulting in insufficient tension.
3. Armature jamming: Due to dust and corrosion, causing inflexibility in rotation and loss of automatic adjustment function.

Fault symptoms:

1. Unusual noise: Continuous "squeaking" sound (belt slipping) or "rumbling" friction sound (bearing damage).
2. Belt vibration: Visible severe vibration of the belt during engine operation.
3. Accessory malfunction: Generator not generating electricity, air conditioning not cooling, steering assist becoming heavier (due to belt slipping causing loss of power transmission).
4. Premature belt wear: Cracks and severe wear on the side of the belt.

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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