DAYCO Belt Tensioner: Self-Adjusting Belt Tensioner, 89379, 1 Pulleys
The DAYCO Self-Adjusting Belt Tensioner, model 89379, is a single-pulley tensioner with a 4-inch outside diameter. As an OEM-spec replacement part, it is designed to maintain proper belt tension in vehicle accessory…
SKU 3G-OTH-486463
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Product Description
The DAYCO Self-Adjusting Belt Tensioner, model 89379, is a single-pulley tensioner with a 4-inch outside diameter. As an OEM-spec replacement part, it is designed to maintain proper belt tension in vehicle accessory drive systems. 3G Electric interprets customer demand and delivers this genuine DAYCO component across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the DAYCO 89379 belt tensioner used for?
The DAYCO 89379 self-adjusting belt tensioner maintains proper tension in vehicle accessory drive systems. It is an OEM-spec replacement part with a single pulley and 4-inch outside diameter, ensuring reliable operation of alternators, water pumps, and other belt-driven components.
What are the specifications of the DAYCO 89379 belt tensioner?
The DAYCO 89379 is a self-adjusting belt tensioner with 1 pulley and a 4-inch outside diameter. Its manufacturer part number is 89379. This single-pulley design meets OEM specifications for consistent belt tension in automotive accessory drive systems.
Where to buy the DAYCO 89379 belt tensioner worldwide?
3G Electric supplies the DAYCO 89379 self-adjusting belt tensioner worldwide. We handle full logistics and customs clearance to deliver this genuine DAYCO component to your location. Contact us to order this OEM-spec replacement part for your vehicle's accessory drive system.
How to install the DAYCO 89379 belt tensioner?
Install the DAYCO 89379 by first relieving belt tension using a breaker bar on the tensioner arm. Remove the old tensioner, then align the new unit's mounting holes and torque bolts to manufacturer specifications. Rotate the tensioner arm to install the belt, then release tension to engage the pulley.
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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.









