ApplianPar Drive Belt Tensioner Pulley Idler Kit for Toyota & Lexus — Direct-Fit Replacement, Single Assembly

ApplianPar Drive Belt Tensioner Pulley Idler Kit is a direct-fit replacement tensioner assembly engineered to restore proper accessory belt tension on compatible Toyota and Lexus engines.

If your vehicle shows belt noise, accessory slippage, or visible wear on the tensioner, this ApplianPar unit replaces common factory part numbers to bring belt alignment and tension back to specification. Built to match original mounting points and pulley alignment, the kit fits a wide range of Toyota and Lexus models from mid-2000s through 2017 and ships as a ready-to-install single tensioner assembly.

Which factory parts does this ApplianPar tensioner replace?

This kit is manufactured to replace several OEM part numbers so you can identify compatibility quickly by cross-reference. It covers the most frequently used replacement codes and ensures bolt hole, stud and belt path geometry match the original part.

• Replaces OEM part numbers: 16620-31031, 16620-31020, 16620-31021, 16620-3103, 16620-31050
• Designed to match original pulley diameter and tensioner arm travel
• Includes the complete tensioner assembly—no additional parts required

Which Toyota and Lexus models will accept this tensioner?

The ApplianPar tensioner fits many Toyota and Lexus vehicles across several model years where the original part numbers were used. Always check your vehicle’s VIN or existing part number to confirm fitment before ordering.

• Lexus: ES and GS (2008–2017), IS (2010–2017), RC (2014–2017), RX (2008–2017)
• Toyota: FJ Cruiser (2006–2011), Highlander (2007–2017), RAV4 III (2007–2017)
• Toyota continued: Sienna (2010–2017), Venza (2008–2017) and other compatible models

What comes in the package and what should I inspect during installation?

The package includes one drive belt tensioner assembly ready for installation. When replacing the tensioner, check the belt condition, pulley alignment and mounting hardware for wear or damage to ensure long-term performance.

• Package contents: 1 x Drive Belt Tensioner assembly
• Inspect accessory belt for cracks, glazing, or uneven wear
• Confirm bolt torque and bracket condition during installation

How will this replacement tensioner affect vehicle performance?

Proper belt tension reduces slippage and accessory noise and helps maintain charging, cooling, and steering assist performance. This ApplianPar unit restores the mechanical alignment that the belt system depends on without altering other engine components.

• Reduces belt squeal and minimizes premature belt wear
• Maintains correct tension for alternator, power steering, and A/C operation
• Engineered for original mounting and pulley alignment to prevent belt tracking issues

Who is this for: This ApplianPar Drive Belt Tensioner Pulley Idler Kit is for DIY mechanics and professional technicians who need an OEM-compatible replacement for Toyota and Lexus vehicles that use the listed part numbers. It’s ideal when symptoms point to a failing tensioner—such as persistent belt noise, accessory failures, or visible play at the pulley—and for routine preventative maintenance when replacing an aging belt system.