SKP SKT42121 Engine Timing Idler

Brand SKP SKT42121
Fits Chrysler, Dodge, Jeep, and Plymouth · 79 vehicles

Direct replacement. Engine timing idler for timing system service and belt path alignment.

Wide fitment coverage. Supports multiple Chrysler, Dodge, Jeep, and Plymouth applications.

Part number SKT42121. Easy to match when ordering timing service components.

Cross-references Gates T42121, 4781569AB and 5010372AA for the same application. See all 3.

$23.62Free 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 $23.62
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Timing Idler Overview

The SKP SKT42121 engine timing idler is a direct-fit replacement for a range of Chrysler, Dodge, Jeep, and Plymouth applications. It is used in timing system service where accurate belt routing and stable pulley operation are required.

Key Features

  • Direct replacement timing idler for engine valve train service.
  • Fits a wide range of Chrysler, Dodge, Jeep, and Plymouth models.
  • Supports proper timing belt path alignment during engine operation.
  • Cross-references Gates T42121 for the same application.
  • Part number SKT42121 for easy identification and ordering.

Detailed Description

SKP SKT42121 is an engine timing idler for vehicles including the Chrysler PT Cruiser, Dodge Caravan, and Jeep Wrangler. This component is part of the timing system and helps maintain the belt path needed for synchronized engine operation. It also fits Chrysler Sebring, Dodge Stratus, Dodge Neon, Jeep Liberty, Chrysler Voyager, Plymouth Voyager, Plymouth Breeze, Chrysler Cirrus, Dodge Grand Caravan, and Plymouth Grand Voyager applications listed in the fitment data. The SKT42121 part number is useful when matching timing service parts across multiple model years.

Common Uses

  • Replacing a worn or noisy timing idler pulley.
  • Restoring correct timing belt routing.
  • Addressing belt tracking or alignment concerns in the timing system.
  • Servicing engine timing components during scheduled maintenance.

Installation Notes and Tips

Verify engine application and timing system configuration before installation. Match the SKT42121 part number to the existing component and confirm fitment for the exact year, make, and model. Timing system service requires careful alignment, so follow the vehicle service procedure and inspect related timing components during replacement.

This part fits 79 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypeNotes
2010ChryslerPT Cruiser2.4LL4GAS—
2009ChryslerPT Cruiser2.4LL4GAS—
2008ChryslerPT Cruiser2.4LL4GAS—
2007ChryslerPT Cruiser2.4LL4GAS—
2007DodgeCaravan2.4LL4GAS—
2006ChryslerPT Cruiser2.4LL4GAS—
2006ChryslerSebring2.4LL4GAS—
2006DodgeCaravan2.4LL4GAS—
2006DodgeStratus2.4LL4GAS—
2006JeepTJ2.4LL4GAS—
2006JeepWrangler2.4LL4GAS—
2005ChryslerPT Cruiser2.4LL4GAS—
2005ChryslerSebring2.4LL4GAS—
2005DodgeCaravan2.4LL4GAS—
2005DodgeNeon2.4LL4GAS—
2005DodgeStratus2.4LL4GAS—
2005JeepLiberty2.4LL4GAS—
2005JeepTJ2.4LL4GAS—
2005JeepWrangler2.4LL4GAS—
2004ChryslerPT Cruiser2.4LL4GAS—
2004ChryslerSebring2.4LL4GAS—
2004DodgeCaravan2.4LL4GAS—
2004DodgeNeon2.4LL4GAS—
2004DodgeStratus2.4LL4GAS—
2004JeepLiberty2.4LL4GAS—
2004JeepWrangler2.4LL4GAS—
2003ChryslerPT Cruiser2.4LL4GAS—
2003ChryslerSebring2.4LL4GAS—
2003ChryslerVoyager2.4LL4GAS—
2003DodgeCaravan2.4LL4GAS—
2003DodgeNeon2.4LL4GAS—
2003DodgeStratus2.4LL4GAS—
2003JeepLiberty2.4LL4GAS—
2003JeepTJ2.4LL4GAS—
2003JeepWrangler2.4LL4GAS—
2002ChryslerPT Cruiser2.4LL4GAS—
2002ChryslerSebring2.4LL4GAS—
2002ChryslerVoyager2.4LL4GAS—
2002DodgeCaravan2.4LL4GAS—
2002DodgeStratus2.4LL4GAS—
2002JeepLiberty2.4LL4GAS—
2001ChryslerPT Cruiser2.4LL4GAS—
2001ChryslerSebring2.4LL4GAS—
2001ChryslerVoyager2.4LL4GAS—
2001DodgeCaravan2.4LL4GAS—
2001DodgeStratus2.4LL4GAS—
2000ChryslerCirrus2.4LL4GAS—
2000ChryslerVoyager2.4LL4GAS—
2000DodgeCaravan2.4LL4GAS—
2000DodgeStratus2.4LL4GAS—
2000PlymouthBreeze2.4LL4GAS—
2000PlymouthVoyager2.4LL4GAS—
1999ChryslerCirrus2.4LL4GAS—
1999DodgeCaravan2.4LL4GAS—
1999DodgeStratus2.4LL4GAS—
1999PlymouthBreeze2.4LL4GAS—
1999PlymouthVoyager2.4LL4GAS—
1998ChryslerSebring2.4LL4GAS—
1998DodgeCaravan2.4LL4GAS—
1998DodgeStratus2.4LL4GAS—
1998PlymouthBreeze2.4LL4GAS—
1998PlymouthVoyager2.4LL4GAS—
1997ChryslerCirrus2.4LL4GAS—
1997ChryslerSebring2.4LL4GAS—
1997DodgeCaravan2.4LL4GAS—
1997DodgeGrand Caravan2.4LL4GAS—
1997DodgeStratus2.4LL4GAS—
1997PlymouthBreeze2.4LL4GAS—
1997PlymouthGrand Voyager2.4LL4GAS—
1997PlymouthVoyager2.4LL4GAS—
1996ChryslerCirrus2.4LL4GAS—
1996ChryslerSebring2.4LL4GAS—
1996DodgeCaravan2.4LL4GAS—
1996DodgeGrand Caravan2.4LL4GAS—
1996DodgeStratus2.4LL4GAS—
1996PlymouthGrand Voyager2.4LL4GAS—
1996PlymouthVoyager2.4LL4GAS—
1995ChryslerCirrus2.4LL4GAS—
1995DodgeStratus2.4LL4GAS—
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gates — T421214781569AB5010372AA