DAYCO Belt Tensioner: Self-Adjusting Belt Tensioner, 89312, 1 Pulleys
The DAYCO Self-Adjusting Belt Tensioner (SKU 6XCH4, Manufacturer Part Number 89312) is a vehicle belt tensioner with 1 pulley and a 3 1/2 in outside diameter. As a global industrial solutions provider, 3G Electric…
SKU 3G-OTH-486455
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Product Description
The DAYCO Self-Adjusting Belt Tensioner (SKU 6XCH4, Manufacturer Part Number 89312) is a vehicle belt tensioner with 1 pulley and a 3 1/2 in outside diameter. As a global industrial solutions provider, 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments—including power transmission—with specialist depth in combustion, pumps, and controls as an authorized distributor for brands like DAYCO.
Frequently Asked Questions
What is the DAYCO 89312 belt tensioner used for?
The DAYCO 89312 self-adjusting belt tensioner maintains proper tension on engine accessory drive belts, preventing slippage and wear. It is commonly used in automotive and light-truck applications to ensure reliable operation of alternators, water pumps, and other belt-driven components.
What are the specifications of the DAYCO 89312 belt tensioner?
The DAYCO 89312 belt tensioner features 1 pulley with a 3 1/2 in outside diameter. It is a self-adjusting design, part number 89312, from the DAYCO brand. This tensioner is engineered for durability and consistent belt tension in vehicle accessory drive systems.
Where to buy the DAYCO 89312 belt tensioner worldwide?
3G Electric supplies the DAYCO 89312 belt tensioner to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine DAYCO parts to your location. Contact us for availability and lead time on this tensioner.
How to install the DAYCO 89312 belt tensioner?
To install the DAYCO 89312 belt tensioner, first ensure the engine is off and cool. Remove the old tensioner, align the new unit with the mounting holes, and torque the bolts to manufacturer specifications. Then route the belt over the pulley and release the tensioner arm to apply proper tension.
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.









