Auto engine parts tensioner V-ribbed belt set Tensioner pulley for Volvo Tensioner bearing pulley OE 31251653

Product Description:

Belt tensioner pulley
OE NO.:   31251653 32249369 31258034

Applicable vehicle type: For Volvo

The automotive tensioner pulley is a critical belt tensioning device applied in the automotive transmission system. It is primarily used to maintain the appropriate tension of timing belts and accessory drive belts, ensuring stable and reliable operation of the engine valve train system and accessory systems. As one of the easily worn parts of a vehicle, the tensioner pulley is typically installed on the slack side of the belt, compensating for the elongation caused by belt wear and aging through automatic or manual adjustment mechanisms.

Core Functions and Roles

• Automatic Tension Adjustment: Adjusts the tension force automatically via a spring mechanism according to different degrees of belt looseness, keeping the belt in the optimal tension state at all times.
• Prevention of Belt Slippage: Provides appropriate pressure to prevent belt slippage caused by looseness, ensuring transmission efficiency.
• Compensation for Elongation: Automatically compensates for the elongation resulting from long-term use-induced wear and aging of the belt, extending the belt's service life.
• Reduction of Noise and Vibration: Enables smoother belt operation, effectively reducing noise in the transmission system and suppressing vibration.
• Protection of the Engine: Prevents timing belt skip, avoiding engine valve phase disorder, vibration, and severe mechanical damage.

• 20 years of specialized auto parts industry experience
• Expert technical team for comprehensive support
• Direct partnerships with repair shops for real-world feedback
• Premium quality parts ensuring reliability and durability
• Extensive inventory with over 500,000+ items ready to ship
• Responsive customer service with quick turnaround
• Customized solutions for specific vehicle requirements
• Professional technical guidance and installation support
• Comprehensive 12-month warranty coverage
• Competitive pricing through optimized supply chains
• Rigorous quality control meeting industry standards
• Efficient global shipping via multiple carriers