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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

Showing In Stock Items. Show All 52 Items.

Results 1 - 25 of 46

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 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Dorman Automatic Belt Tensioners 419-317

Automatic Belt Tensioner, Smooth Pulley, Chevy, Pontiac, Each

Part Number: RNB-419-317

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-102

Automatic Belt Tensioner, Smooth Pulley, Chevy, GMC, Oldsmobile, Each

Part Number: RNB-419-102

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-214

Automatic Belt Tensioner (Tensioner Only)

Part Number: RNB-419-214

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-400

Automatic Belt Tensioner

Part Number: RNB-419-400

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-010

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

Part Number: RNB-419-010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-008

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

Part Number: RNB-419-008

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners for 1994-1997 SONOMA, S10, 1994-1995 LLV - 419-017

Automatic Belt Tensioner, Smooth Pulley, Chevy, GMC, 2.2L, Each

Part Number: RNB-419-017

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-332

Automatic Belt Tensioner, Smooth Pulley, Ford, Each

Part Number: RNB-419-332

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-125

Automatic Belt Tensioner (Tensioner Only)

Part Number: RNB-419-125

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-204

Belt Tensioner, 6-Rib, Serpentine, Ford, Lincoln, Mercury, 4.6L, Each

Part Number: RNB-419-204

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-123

Automatic Belt Tensioner (Tensioner only)

Part Number: RNB-419-123

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: 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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Estimated Ship Date: Today

Dorman Automatic Belt Tensioners 419-001

Belt Tensioner, 6-Rib and Smooth Pulley, Ford, 6.0L Diesel, Each

Part Number: RNB-419-001

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-101

Automatic Belt Tensioner, Smooth Pulley, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, Each

Part Number: RNB-419-101

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners for 2007-2011 CIVIC - 419-380

Automatic Belt Tensioner, Smooth Pulley, Honda, Each

Part Number: RNB-419-380

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners for 2006-2007 B9 TRIBECA, 2008-2009 LEGACY, 2002-2009 OUTBACK - 419-382

Automatic Belt Tensioner, Smooth Pulley, Subaru, Each

Part Number: RNB-419-382

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-386

Automatic Belt Tensioner, Smooth Pulley, Audi, Volkswagen, Each

Part Number: RNB-419-386

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-211

Automatic Belt Tensioner, Smooth Pulley, Ford, Each

Part Number: RNB-419-211

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-114

Automatic Belt Tensioner, Smooth Pulley, Cadillac, Each

Part Number: RNB-419-114

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners for 1998-2003 SONOMA, S10, 1999-2000 HOMBRE - 419-115

Automatic Belt Tensioner, Smooth Pulley, Chevy, GMC, Isuzu, Each

Part Number: RNB-419-115

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-117

Automatic Belt Tensioner, Smooth Pulley, Buick, Cadillac, Oldsmobile, Pontiac, Each

Part Number: RNB-419-117

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners for 2008-2013 128I - 419-365

Automatic Belt Tensioner, Smooth Pulley, BMW, Each

Part Number: RNB-419-365

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-119

Automatic Belt Tensioner, Smooth Pulley, Chevy, Oldsmobile, Pontiac, Each

Part Number: RNB-419-119

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Automatic Belt Tensioners for 1998-2002 CAMARO, FIREBIRD - 419-124

Automatic Belt Tensioner (Tensioner Only)

Part Number: RNB-419-124

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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