Dayco 89658 belt tensioner for the 2011-2017 Ford F-250 Super Duty V8 6.7L and other vehicles keeps the serpentine belt under tension. This Dayco accessory drive belt tensioner assembly takes up slack in the belt that runs the engine accessories.
- Automatic tensioner type
- Built for a serpentine belt drive
- Counter clockwise direction
- Single flat pulley, 76 mm in diameter and 37 mm wide
Quick facts
- Part: Dayco 89658 belt tensioner
- Also called: serpentine belt tensioner
- Fits: 2011-2017 Ford F-250 Super Duty V8 6.7L and other vehicles
- Condition: New
A worn tensioner can show up as belt squeal, uneven belt wear or a noisy pulley. A weak belt, a worn idler or another accessory pulley can be behind those signs too, so find the cause before buying. If the Dayco drive belt tensioner is at fault, this assembly replaces it.
Fits
The 2011-2017 Ford F-250 Super Duty V8 6.7L, the 2011-2017 Ford F-350 Super Duty V8 6.7L and the 2011-2017 Ford F-450 Super Duty V8 6.7L all fit this tensioner, and so do more vehicles. For another truck, look up its year and engine under the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Number of pulleys: 1
- Pulley diameter: 76 mm
- Pulley width: 37 mm
Build and materials
- Type: Automatic
- Belt type: Serpentine
- Direction: Counter clockwise
- Pulley: flat
- Condition: New
- Country of origin: United States
In the box
One belt tensioner. The fitment calls for one per vehicle.
Interchange: 39153 · 49466 · 999978A · BT131 · BT98
This part cross-references / interchanges with the following part numbers:
39153, 49466, 999978A, BT131, BT98, 8C3Q-6B209-AB, BC3Q-6B209-AB, BC3Q-6B209-AC, BC3Q-6B209-AD, BC3Z-6B209-A, BC3Z-6B209-B
Frequently Asked Questions
Does the Dayco 89658 fit a 2011-2017 Ford F-250 Super Duty V8 6.7L?
Yes. Dayco 89658 fits the 2011-2017 Ford F-250 Super Duty V8 6.7L. For another truck, look up its year and engine in the "Vehicles it fits" section.
What size is the pulley on this serpentine belt tensioner?
Dayco 89658 has one flat pulley that is 76 mm in diameter and 37 mm wide.
Is this belt tensioner an automatic type?
Yes. This tensioner is an automatic type built for a serpentine belt, and its direction is counter clockwise.
Can a chirping or squealing belt come from a worn tensioner?
Yes. A chirp or squeal, a groaning pulley or a belt wearing unevenly can come from a worn tensioner.
Does Dayco 89658 replace BT98?
Yes. BT98 is one of the numbers Dayco 89658 replaces, along with 39153, 49466, 999978A and BT131.
