Gates 90K-38587HDD serpentine belt drive component kit for the 2017-2023 Kenworth W900 6-cylinder 14.9L and other vehicles supplies a FleetRunner heavy-duty belt and tensioner under one part number. Use it to refresh the whole serpentine belt drive at once.
- Gates FleetRunner heavy-duty line for fleet maintenance
- Application-specific FleetRunner heavy-duty serpentine belt and FleetRunner tensioner
- Belt engineered for high mileage, high idle times and high temperatures in abusive environments
- Servicing the whole belt drive at once extends preventive maintenance schedules
Quick facts
- Part: Gates 90K-38587HDD serpentine belt drive component kit
- Fits: 2017-2023 Kenworth W900 6-cylinder 14.9L and other vehicles
- Position: Fan and alternator; fan; alternator and water pump
- Condition: New
Squealing or chirping near the belt, cracks or fraying on its surface, or a tensioner arm that wobbles when checked with the engine off and cool can mean the belt drive is worn. A worn pulley, a weak alternator or water pump bearing, or a misaligned accessory can be behind these signs too, so find the cause before buying.
Fits
The 2017-2023 Kenworth W900 6-cylinder 14.9L, the 2013-2023 Peterbilt 389 6-cylinder 14.9L and the 2020-2023 Kenworth W990 6-cylinder 14.9L each take one kit, and it fits other vehicles too.
Specifications
Fit and size
- Position: fan and alternator; fan; alternator and water pump
- Quantity per vehicle: 1
- Belt outside circumference: 2329 mm (91.75 in)
- Belt top width: 42 mm (1.647 in)
Build and materials
- Type: serpentine belt drive component kit
- Condition: New
- Belt part number: K120911HD
- Tensioner part number: 38587
- Country of origin: Mexico
In the box
One FleetRunner heavy-duty serpentine belt and one FleetRunner tensioner.
Interchange: DBK120911HD
This part cross-references / interchanges with the following part numbers:
90K-38587HDD, DBK120911HD
Frequently Asked Questions
Does the Gates 90K-38587HDD fit the 2013-2023 Peterbilt 389 6-cylinder 14.9L?
Yes. Gates 90K-38587HDD fits the 2013-2023 Peterbilt 389 6-cylinder 14.9L, one kit per vehicle. For any other vehicle, check the "Vehicles it fits" section on this page.
What comes in the Gates serpentine belt drive component kit?
Gates 90K-38587HDD includes one FleetRunner heavy-duty serpentine belt (part number K120911HD) and one FleetRunner tensioner (part number 38587).
What size is the belt in the Gates drive belt kit?
The belt is 42 mm (1.647 in) wide across the top and 2329 mm (91.75 in) around the outside circumference.
Which signs can mean the belt or tensioner in this kit is worn?
A squeal or chirp near the belt, cracks or fraying on its surface, or a tensioner arm that wobbles with the engine off and cool can all point to wear. A shop can test the tensioner.
Is DBK120911HD the same as Gates 90K-38587HDD?
Yes. DBK120911HD is listed as an interchange number for Gates 90K-38587HDD.
