GATES Belt Tensioner: Self-Adjusting Belt Tensioner, 38509, Heavy Duty, 1 Pulleys
The GATES Belt Tensioner is a self-adjusting belt tensioner, model 38509, designed for heavy-duty performance. It features a single steel pulley with a 3-inch outside diameter, ensuring reliable tensioning in vehicle…
SKU 3G-OTH-486462
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Product Description
The GATES Belt Tensioner is a self-adjusting belt tensioner, model 38509, designed for heavy-duty performance. It features a single steel pulley with a 3-inch outside diameter, ensuring reliable tensioning in vehicle applications.
Frequently Asked Questions
What is the GATES 38509 belt tensioner used for?
The GATES 38509 self-adjusting belt tensioner maintains proper tension on serpentine or accessory drive belts in heavy-duty vehicle applications. Its single steel pulley with a 3-inch outside diameter ensures reliable belt grip and reduces slippage, extending belt and component life.
What are the specifications of the GATES 38509 belt tensioner?
The GATES 38509 is a heavy-duty self-adjusting belt tensioner with one steel pulley measuring 3 inches outside diameter. It is designed for demanding vehicle environments and carries manufacturer part number 38509. The steel construction provides durability under high load conditions.
Where to buy the GATES 38509 belt tensioner worldwide?
3G Electric supplies the GATES 38509 belt tensioner to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this heavy-duty tensioner.
How to install a GATES self-adjusting belt tensioner?
Installation typically involves releasing tension on the old belt, removing the mounting bolt, and fitting the new GATES tensioner in the same orientation. Always follow the vehicle manufacturer's torque specifications for the mounting bolt. After installation, rotate the engine manually to verify belt alignment and tension.
Used in
Common applications for GATESGATES Products
3G Electric supplies GATES vehicle self-adjusting belt tensioners. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









