DAYCO Belt Tensioner: Self-Adjusting Belt Tensioner, 89318, 1 Pulleys
The DAYCO Self-Adjusting Belt Tensioner, model 89318, is a vehicle belt tensioner with one pulley and an outside diameter of 2 3/4 inches. As an OEM part from DAYCO, it is designed for self-adjusting belt systems in…
SKU 3G-OTH-486309
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Product Description
The DAYCO Self-Adjusting Belt Tensioner, model 89318, is a vehicle belt tensioner with one pulley and an outside diameter of 2 3/4 inches. As an OEM part from DAYCO, it is designed for self-adjusting belt systems in automotive applications.
Frequently Asked Questions
What is the DAYCO 89318 belt tensioner used for?
The DAYCO 89318 self-adjusting belt tensioner maintains proper tension on serpentine or accessory drive belts in automotive engines. It prevents belt slippage and noise, extending belt and component life across passenger cars and light trucks.
What are the specifications of the DAYCO 89318 belt tensioner?
The DAYCO 89318 is a self-adjusting belt tensioner with one pulley and an outside diameter of 2 3/4 inches. It is an OEM replacement part designed for vehicle belt systems, ensuring reliable tension maintenance without manual adjustment.
Where to buy the DAYCO 89318 belt tensioner worldwide?
3G Electric supplies the DAYCO 89318 belt tensioner to customers worldwide. We handle full logistics, customs clearance, and delivery, sourcing genuine DAYCO parts for automotive maintenance and repair applications globally.
How to install the DAYCO 89318 self-adjusting belt tensioner?
Installation typically involves relieving belt tension, removing the old tensioner, and bolting the new DAYCO 89318 into place. Always follow the vehicle manufacturer's torque specifications and routing diagram. Proper alignment ensures optimal belt life and performance.
Used in
Common applications for DAYCODAYCO Products
3G Electric supplies DAYCO vehicle self-adjusting belt tensioners. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









