Dorman 420-181 Engine Timing Belt Tensioner

Brand Dorman 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
Fits Dodge and Chrysler · 54 vehicles

OE-style replacement. Matches the fit and function of the original tensioner.

Aluminum alloy construction. Built from quality materials for reliable performance and durability.

Automatic hydraulic design. Maintains proper belt tension with consistent operation.

Cross-references Dayco 85048, Gates T43217 and 4573347AB for the same application. See all 4.

$152.33Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $152.33
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 420-181 Engine Timing Belt Tensioner

Dorman 420-181 is an engine timing belt tensioner built to match the fit and function of the original unit on specified applications. It uses an aluminum alloy body and an automatic hydraulic tensioner style for consistent belt control in the engine timing system.

Key Features

  • Engine timing belt tensioner for specified Chrysler and Dodge applications
  • Aluminum alloy construction for durable service
  • Automatic hydraulic tensioner style for steady belt tensioning
  • Standard replacement grade for OE-style fit and function
  • Bracket not included; pulley not included
  • Direct replacement part number 420-181

Product Details

This timing belt tensioner is designed for vehicles that require precise belt tension to keep the engine timing system operating correctly. It fits a wide range of Chrysler and Dodge models, including Chrysler 300, Chrysler Sebring, Dodge Charger, and Dodge Grand Caravan applications. The Dorman 420-181 part number is also a useful reference when searching for an OE-style engine timing belt tensioner for Chrysler 300 and Dodge Charger service work.

This part cross-references Dayco 85048 and Gates T43217 for the same application.

What It Helps Address

  • Timing belt slack that can affect engine synchronization
  • Noise from a worn or weak tensioner assembly
  • Uneven belt loading in the timing belt drive
  • Service replacement for a failed hydraulic tensioner
  • Restoration of proper belt tension on Chrysler and Dodge timing systems

Installation Notes and Tips

Verify vehicle fitment before purchase by matching year, make, model, and engine application. Inspect the timing belt system, related pulleys, and seals during service, since wear in adjacent components can affect tensioner performance. Follow the vehicle service procedure for timing alignment and hydraulic tensioner setup during installation.

Quality Assurance

Dorman engineers this replacement tensioner to match original fit and function on listed applications. It is made from quality materials for reliable performance and durability in standard replacement service.

This part fits 54 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2011DodgeNitro4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010Chrysler3003.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010ChryslerCirrus3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010ChryslerSebring3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010ChryslerTown & Country4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010DodgeAvenger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010DodgeChallenger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010DodgeCharger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010DodgeGrand Caravan4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010DodgeJourney3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2010DodgeNitro4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009Chrysler3003.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009ChryslerCirrus3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009ChryslerSebring3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009ChryslerTown & Country4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009DodgeAvenger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009DodgeChallenger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009DodgeCharger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009DodgeGrand Caravan4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009DodgeJourney3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2009DodgeNitro4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008Chrysler3003.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008ChryslerCirrus3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008ChryslerPacifica4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008ChryslerSebring3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008ChryslerTown & Country4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008DodgeAvenger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008DodgeCharger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008DodgeGrand Caravan4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008DodgeMagnum3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2008DodgeNitro4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007Chrysler3003.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007ChryslerCirrus3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007ChryslerPacifica4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007ChryslerSebring3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007DodgeCharger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007DodgeMagnum3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2007DodgeNitro4.0LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006Chrysler3003.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006ChryslerPacifica3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006DodgeCharger3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2006DodgeMagnum3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2005Chrysler3003.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2005ChryslerPacifica3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2005DodgeMagnum3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004Chrysler300M3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004ChryslerConcorde3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004ChryslerIntrepid3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004ChryslerPacifica3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2004DodgeIntrepid3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003Chrysler300M3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003ChryslerConcorde3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003ChryslerIntrepid3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
2003DodgeIntrepid3.5LV6N/AEngine Timing Belt Tensioner - Verify compatibility with your vehicle before buying.
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 85048Gates — T432174573347ABSK420181