SKP SK89503 Accessory Drive Belt Idler Pulley - Lower

Accessory Drive Belt Idler Pulley for Toyota Applications

The SKP SK89503 accessory drive belt idler pulley helps maintain proper belt routing and tension for smooth operation of engine-driven accessories. It is a direct-fit replacement for select Toyota Hilux, Tacoma, and 4Runner applications with lower pulley placement.

• Accessory drive belt idler pulley for lower mounting locations
• Supports stable belt tracking and consistent accessory drive operation
• Durable construction for wear resistance in daily driving conditions
• Direct replacement for select Toyota Hilux, Tacoma, and 4Runner models
• Cross-references Dayco 89503 and Gates 36614 for the same application

Detailed Fitment and Function

SKP SK89503 is an accessory drive belt idler pulley built for vehicles that rely on a properly guided serpentine belt system. By keeping the belt aligned at the lower position, it helps maintain smooth operation of engine accessories such as the alternator, power steering, and air conditioning system where equipped. Fits 2016-2019 Toyota Tacoma, lower; Fits 2005-2015 Toyota Tacoma, lower, W/A.C.; Fits 2016-2017 Toyota Hilux, lower; Fits 2019 Toyota Hilux, lower; Fits 2011-2015 Toyota Hilux, lower, W/A.C.; Fits 2009 Toyota Hilux, lower, W/A.C.; Fits 2010 Toyota 4Runner, lower, W/A.C.

Common Issues This Part Can Address

• Belt noise from a worn or rough idler pulley bearing
• Uneven belt tracking at the lower accessory drive position
• Visible pulley wear, wobble, or surface damage
• Reduced belt stability on Toyota Tacoma, Hilux, or 4Runner applications
• Service replacement for a failing accessory drive belt idler pulley

Installation Notes and Tips

Verify the pulley position and vehicle configuration before ordering, especially on Toyota Tacoma and Toyota Hilux models with air conditioning. Inspect the belt, tensioner, and adjacent pulleys during service so the new idler pulley can operate against a clean, properly routed belt path. Confirm fitment by year, make, model, and lower position before installation.

Quality Assurance

SKP manufactures this pulley as a durable replacement component for long service life and dependable belt support in everyday use.