Keep your accessory drive belt properly tensioned and your engine's key components spinning smoothly with the SKP Accessory Drive Belt Tensioner Assembly (SK89255). This serpentine belt tensioner drops in as a direct-fit replacement for a wide range of Toyota and Lexus V8 applications, including the 2003-2009 Toyota 4Runner 4.7L, 2000-2009 Toyota Tundra 4.7L and 2001-2009 Toyota Sequoia 4.7L — see the Buyer's Guide tab for the full list.
A tensioner holds the belt taut and takes up slack as the belt stretches and pulley loads change. Signs the original may need replacing include belt squeal or chirp, a fluttering or vibrating belt, and premature belt wear. If a worn tensioner is the cause, this assembly replaces it. Country of origin: China.
Interchange: 49452 · 89255 · 38488 · 166200W036 · 166200W100 · 166200W101 · SK38173
This part cross-references / interchanges with the following part numbers:
What does a serpentine belt tensioner do?
It keeps the accessory drive belt taut, taking up slack as the belt stretches and pulley loads change so components like the alternator and A/C compressor run consistently.
Will the SK89255 fit my vehicle?
It's a direct-fit replacement for listed Toyota and Lexus V8 applications such as the 2003-2009 Toyota 4Runner 4.7L, 2000-2009 Toyota Tundra 4.7L and 2001-2009 Toyota Sequoia 4.7L. Check the Buyer's Guide tab for the full list.
What are the signs of a failing belt tensioner?
Common signs include belt squeal or chirp, a fluttering or vibrating belt, and premature belt wear. If a worn tensioner is the cause, SK89255 is designed to replace it and hold proper belt tension.
Which engines does this tensioner cover?
The listed applications use the V8-4.0L, V8-4.3L, and V8-4.7L engines across various Toyota and Lexus models. See the Buyer's Guide tab for the full engine and year breakdown.
Should I replace the belt when installing this tensioner?
Inspect the accessory drive belt for cracks, glazing, or wear during installation. Replacing a worn belt at the same time is a good practice, though it is sold separately.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
