Gates T42031 timing idler for the 2003-2009 Toyota 4Runner V8 4.7L and other vehicles guides the timing belt along its path. Engineered with OE quality or OE exact fit, this engine timing idler has bearings that meet or exceed OE standards.
- Gates PowerGrip timing belt pulley line
- Steel pulley with a smooth contact surface for the belt backside
- 66 mm outside diameter with a 12 mm inside diameter
- No flange on the end
Quick facts
- Part: Gates T42031 timing idler
- Also called: engine timing idler
- Fits: 2003-2009 Toyota 4Runner V8 4.7L and other vehicles
- Material: Steel
- Condition: New
A worn timing idler can show up as a rattle or whine from the engine or a rough, scored pulley surface, though a worn timing belt or a weak belt tensioner can be behind similar noises, so find the cause before replacing anything. If the idler is at fault, this part replaces it.
Fits
It is listed for a wide range of Toyota and Lexus models, including the 2000-2009 Toyota Tundra V8 4.7L and the 2001-2009 Toyota Sequoia V8 4.7L. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Quantity per vehicle: 1
- Outside diameter: 66 mm
- Inside diameter: 12 mm
- Width: 37.5 mm
Build and materials
- Type: timing belt pulley
- Material: Steel
- Contact surface: Smooth/Backside
- Flanged end: No
- Condition: New
- Country of origin: Mexico
In the box
One timing idler pulley. This listing holds one, and the engine takes one.
Interchange: 024-1178 · 9-5259 · 470-9050
85259 · FU70994 · VKM81005 · 1350250011 · 135030F010 · 1350350010 · 1350350011
This part cross-references / interchanges with the following part numbers:
T42031, 024-1178, 9-5259, 85259, FU70994, 470-9050, VKM81005, 1350250011, 135030F010, 1350350010, 1350350011
Frequently Asked Questions
Does the Gates T42031 timing idler fit the 2003-2009 Toyota 4Runner V8 4.7L?
Yes, Gates T42031 is listed for the 2003-2009 Toyota 4Runner V8 4.7L. Open the "Vehicles it fits" section to check your exact model and engine.
What size is the Gates T42031 timing idler pulley?
Gates T42031 measures 66 mm outside diameter, 12 mm inside diameter and 37.5 mm wide. It is a steel pulley with no flange.
Is this timing idler smooth or grooved?
It is smooth. The contact surface is listed as Smooth/Backside, so it runs against the back of the belt rather than on a grooved sprocket-style face.
Does this timing idler come with bolts?
Not as a listed item: the contents are one pulley, and hardware is provided only as needed. This listing holds a single timing idler.
Could a whine from the engine mean the timing idler is worn?
It can, but a worn belt or tensioner can make similar noises. Because the timing belt is involved, have a shop inspect it rather than guessing.
