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

Showing In Stock Items. Show All 15 Items.

Results 1 - 13 of 13

Dorman Automatic Belt Tensioners 419-201

Automatic Belt Tensioner, Smooth Pulley, Ford, Mazda, Mercury, Each

Part Number: RNB-419-201

4.43 out of 5 stars ( 7 )

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Dorman Automatic Belt Tensioners 419-006

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

Part Number: RNB-419-006

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-112

Automatic Belt Tensioner, 6-Rib Pulley, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Each

Part Number: RNB-419-112

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Dorman Automatic Belt Tensioners 419-011

Automatic Belt Tensioner, Ford, Lincoln, Mercury, Each

Part Number: RNB-419-011

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-040

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 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Dorman Automatic Belt Tensioners for 2006-2007 ACCORD, 2002-2014 CR-V, 2006 TSX - 419-005

Automatic Belt Tensioner, Smooth Pulley, for use on Honda®, Each

Part Number: RNB-419-005

Not Yet Reviewed

Estimated Ship Date: Today

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Dorman Automatic Belt Tensioners 419-004

Automatic Belt Tensioner, Smooth Pulley, Hyundai, Kia, Each

Part Number: RNB-419-004

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-378

Automatic Belt Tensioner

Part Number: RNB-419-378

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-013

Automatic Belt Tensioner, Nissan, Each

Part Number: RNB-419-013

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-367

Automatic Belt Tensioner, Smooth Pulley, Mercedes-Benz, Each

Part Number: RNB-419-367

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-388

Automatic Belt Tensioner

Part Number: RNB-419-388

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Dorman Automatic Belt Tensioners for 2009-2013 MAXIMA, 2009-2014 MURANO, 2011-2017 QUEST - 419-377

Automatic Belt Tensioner, Smooth Pulley, Nissan, Each

Part Number: RNB-419-377

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-015

Automatic Belt Tensioner, Saturn, Pontiac, Chevy, Oldsmobile, Each

Part Number: RNB-419-015

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

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