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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 47

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: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

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: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Dorman Automatic Belt Tensioners for 2000-2005 CELICA, 2003-2006 COROLLA, 2003-2010 VIBE - 419-123

Automatic Belt Tensioner (Tensioner only)

Part Number: RNB-419-123

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Dorman Automatic Belt Tensioners 419-105

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

Part Number: RNB-419-105

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-106

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

Part Number: RNB-419-106

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-108

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

Part Number: RNB-419-108

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners for 1999-2004 GRAND CHEROKEE, 2000-2006 WRANGLER - 419-016

Automatic Belt Tensioner, Jeep, Each

Part Number: RNB-419-016

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners for 1998-2001 B2500, 1992-2011 RANGER - 419-209

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

Part Number: RNB-419-209

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-003

Belt Tensioner, Smooth Pulley, Ford, Each

Part Number: RNB-419-003

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-007

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

Part Number: RNB-419-007

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-205

Automatic Belt Tensioner, Smooth Pulley, Ford, Each

Part Number: RNB-419-205

1.5 out of 5 stars ( 2 )

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Dorman Automatic Belt Tensioners 419-202

Automatic Belt Tensioner, 6-Rib Pulley, Ford, Lincoln, Mercury, Each

Part Number: RNB-419-202

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

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