Dorman 420-181 Engine Timing Belt Tensioner

Name: Dorman 420-181 Engine Timing Belt Tensioner
Brand: Dorman
SKU: BKKY-420-181
Price: 146.34 USD
Availability: InStock

N/A

⚙️ 54 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Dodge and Chrysler, Nitro, 300, Cirrus, Sebring, Town & Country, Avenger, Challenger, Charger, Grand Caravan, Journey, Pacifica, Magnum, 300M, Concorde, and Intrepid

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Overview of Dorman Engine Timing Belt Tensioner 420-181

The Dorman 420-181 engine timing belt tensioner is designed for reliable performance in Chrysler and Dodge vehicles. This automatic hydraulic tensioner ensures consistent belt tension, helping maintain proper engine timing for models like the Dodge Charger and Chrysler 300.

Constructed from durable aluminum alloy for strength and corrosion resistance
Automatic hydraulic tensioner style for precise, maintenance-free operation
Standard replacement grade for dependable, long-lasting service
Includes one tensioner unit; pulley and bracket not included
Non-adjustable design simplifies installation and reduces adjustment errors

Detailed Product Description

The Dorman 420-181 timing belt tensioner is engineered with an aluminum alloy body that offers a balance of lightweight construction and durability. Its automatic hydraulic tensioner style maintains optimal tension on the timing belt without manual adjustment, reducing the risk of improper tension that can lead to premature belt wear or engine timing issues. This tensioner is a standard replacement part, meeting OEM specifications to ensure compatibility and reliable function in a range of Chrysler and Dodge vehicles including the 300, 300M, Avenger, Challenger, Charger, Cirrus, Concorde, Grand Caravan, Intrepid, Journey, Magnum, Nitro, Pacifica, Sebring, and Town & Country models.

Common Applications and Problem Resolution

Prevents timing belt slippage and misalignment
Reduces engine noise caused by loose or worn tensioners
Helps avoid engine performance issues related to improper timing
Addresses premature belt wear due to inconsistent tension
Eliminates the need for manual tension adjustments

Installation Notes and Tips

Installation of the Dorman 420-181 tensioner requires basic mechanical knowledge and proper tools. Since this tensioner is non-adjustable and does not include a bracket or pulley, ensure the existing components are compatible and in good condition before installation. Follow vehicle-specific service manual instructions for timing belt replacement and tensioner installation to maintain correct engine timing and avoid damage.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for your Chrysler or Dodge vehicle. The 420-181 tensioner is backed by Dorman's quality assurance processes. Please refer to Dorman's official warranty policy for specific coverage details.

Brand	Dorman
Part Number	420-181
Adjustable	No
Bracket Included	No
Item Grade	Standard Replacement
Material	Aluminum Alloy
Package Contents	1 Tensioner
Pulley Included	No
Tensioner Style	Automatic - Hydraulic

This part fits 54 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Position	Notes
2011	Dodge	Nitro	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Chrysler	300	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Chrysler	Cirrus	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Chrysler	Sebring	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Chrysler	Town & Country	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Dodge	Avenger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Dodge	Challenger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Dodge	Charger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Dodge	Grand Caravan	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Dodge	Journey	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010	Dodge	Nitro	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Chrysler	300	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Chrysler	Cirrus	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Chrysler	Sebring	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Chrysler	Town & Country	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Dodge	Avenger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Dodge	Challenger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Dodge	Charger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Dodge	Grand Caravan	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Dodge	Journey	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009	Dodge	Nitro	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Chrysler	300	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Chrysler	Cirrus	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Chrysler	Pacifica	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Chrysler	Sebring	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Chrysler	Town & Country	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Dodge	Avenger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Dodge	Charger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Dodge	Grand Caravan	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Dodge	Magnum	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008	Dodge	Nitro	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007	Chrysler	300	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007	Chrysler	Cirrus	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007	Chrysler	Pacifica	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007	Chrysler	Sebring	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007	Dodge	Charger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007	Dodge	Magnum	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007	Dodge	Nitro	4.0L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006	Chrysler	300	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006	Chrysler	Pacifica	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006	Dodge	Charger	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006	Dodge	Magnum	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2005	Chrysler	300	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2005	Chrysler	Pacifica	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2005	Dodge	Magnum	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004	Chrysler	300M	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004	Chrysler	Concorde	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004	Chrysler	Intrepid	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004	Chrysler	Pacifica	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004	Dodge	Intrepid	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003	Chrysler	300M	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003	Chrysler	Concorde	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003	Chrysler	Intrepid	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003	Dodge	Intrepid	3.5L	V6	N/A	Engine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

4573347AB85048SK420181T43217

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.