MOTOKU Drive Belt Tensioner and Serpentine Idler Pulley Kit for 3.6L Pentastar — Direct-Fit, OE-Style Replacement

This MOTOKU drive belt tensioner and serpentine idler pulley kit replaces worn components to restore proper belt alignment and quiet operation on many 3.6L Chrysler-family engines.

If your vehicle shows squealing, belt slippage, or visible wear on the serpentine routing, this kit supplies a direct-fit tensioner and idler pulley engineered for Chrysler, Dodge, Jeep, Ram and ProMaster models that use the 3.6L Pentastar family. The components are made to match OE fitment and mounting points so the swap is straightforward for experienced DIYers or professional technicians.

Which vehicles will this kit fit?

This MOTOKU kit lists wide compatibility across model years that use the 3.6L engine. Always verify your OEM part numbers and engine code before purchase to ensure exact fitment for your vehicle.

• Dodge: Avenger (2011–2014), Challenger (2011–2023), Charger (2011–2023), Durango (2011–2015), Grand Caravan (2011–2020), Journey (2011–2019)
• Ram: 1500 (2013–2018), 1500 Classic (2019–2024), C/V (2012–2015), ProMaster 1500/2500/3500 (2014–2021)
• Chrysler: 200 (2011–2014), 300 (2011–2023), Town & Country (2011–2016)
• Jeep: Grand Cherokee (2011–2015)

How does this kit improve belt performance and noise?

Replacing a tired tensioner and idler pulley reestablishes the correct tension and pulley alignment so the serpentine belt tracks smoothly. That reduces squeal, vibration and premature belt wear without changing the belt itself.

• Restores correct belt tension and alignment
• Reduces squeal and drivetrain vibration
• Helps prevent premature belt fraying and glazing

What exactly is included and what materials are used?

The kit includes a replacement tensioner assembly and at least one idler pulley designed to meet OEM mounting and load specs. Components use corrosion-resistant finishes and bearings specified for long service life under engine bay conditions.

• Tensioner assembly pre-assembled for direct fit
• High-quality idler pulley with sealed bearing
• Protective coatings against rust and heat exposure

How difficult is installation and what should I check during the swap?

Installation is moderate in difficulty: a professional or a skilled DIYer with basic hand tools can complete the job in an hour or two depending on vehicle access. Inspect the belt for damage and confirm pulley alignment once installed.

• Follow vehicle service manual torque specs and procedures
• Inspect and replace the belt if cracked, glazed, or frayed
• Turn engine by hand after installation to verify smooth rotation

Who is this for: This MOTOKU tensioner and idler pulley kit is for owners and technicians working on Chrysler-family vehicles powered by the 3.6L engine who need a reliable, direct-replacement solution to restore belt tracking and reduce noise. It’s appropriate for routine maintenance, troubleshooting belt-driven accessory issues, or as part of a preventative service to avoid roadside failures. Verify vehicle fitment and OEM compatibility before ordering to ensure a proper match for your make, model and year.

Note: This product description is informational. Check exact part numbers and consult a mechanic for vehicle-specific installation guidance.