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Dorman Automatic Belt Tensioners

4.43 out of 5 stars 42 Customer Reviews

Put some tension on your belts with Dorman automatic belt tensioners. Rigorously tested for sustained performance by a team of product and quality engineers, Dorman
Put some tension on your belts with Dorman automatic belt tensioners. Rigorously tested for sustained performance by a team of product and quality engineers, Dorman's automatic belt tensioner assemblies are designed to provide proper tension to vehicle serpentine belts. They incorporate a damping design, torsion spring, and sealing system to ensure the proper functioning of many integral engine components. Replace worn-out or weak parts with Dorman automatic belt tensioners. The automatic belt tensioner should be replaced whenever the serpentine belt is replaced.

Features include:

* Quality tests include torque
Put some tension on your belts with Dorman automatic belt tensioners. Rigorously tested for sustained performance by a team of product and quality engineers, Dorman's automatic belt tensioner assemblies are designed to provide proper tension to vehicle serpentine belts. They incorporate a damping design, torsion spring, and sealing system to ensure the proper functioning of many integral engine components. Replace worn-out or weak parts with Dorman automatic belt tensioners. The automatic belt tensioner should be replaced whenever the serpentine belt is replaced.

Features include:

* Quality tests include torque testing, spring-back testing, corrosion-resistance testing, and on-vehicle testing
* Solid steel or aluminum construction for long-lasting durability
* Highly resistant to heat and shock
* Designed to fit properly every time

Results 1 - 5 of 5

Automatic Belt Tensioner, Smooth Pulley, Serpentine, Dodge, Ram, Truck, Each

Part Number: RNB-419-039

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Automatic Belt Tensioner, Smooth Pulley, Dodge, Ram, Jeep, Chrysler, Each

Part Number: RNB-419-006

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Automatic Belt Tensioner, Chrysler, Dodge, Jeep, Mitsubishi, Each

Part Number: RNB-419-010

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Accessory Belt Tensioners, Automatic Belt Tensioner, Smooth Pulley, Chrysler, Dodge, Jeep, Ram, 3.6L, Each

Part Number: RNB-419-040

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Automatic Belt Tensioner, Chrysler, Dodge, Jeep, 4.7L, Each

Part Number: RNB-419-008

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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