Serpentine Belt for 2013 Western Star 4900SA & More - Gates K120864

$86.99

Part number: K120864

UPC: 072053833782

Condition: New

Weight: 1.00 LBS

Item Package Quantity: 1

$86.99

Current Stock: 106

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Gates Serpentine Belt P/N:K120864

$86.99

Description

Keep the fan, alternator, and water pump turning with the Gates Serpentine Belt K120864. This single multi-rib engine belt loops over the accessory drive pulleys to transfer power from the crankshaft to the driven components, and it installs as a direct-fit replacement on the listed heavy-duty applications: the 2004-2007 Kenworth T2000, 2004-2007 Kenworth T600A, 2004-2007 Kenworth T800, and 2013 Western Star 4900SA.

Accessory drive: On these applications the belt routes the fan, alternator, and water pump (fan-and-alternator/fan-alternator-and-hub/fan-alternator-and-water-pump routing), keeping the accessory drive spinning.
Serpentine design: A single continuous belt wraps the pulleys, so it can be replaced as one part rather than multiple V-belts.
Wear replacement: Signs the belt may need replacing include squealing, visible cracking, glazing, chunking, or fraying along the ribs.

Inspect the tensioner and idler pulleys while the belt is off, and route the new belt exactly as shown on the vehicle's belt-routing diagram. See the "Vehicles it fits" section to confirm the fit for your truck.

Manufacturer part number: K120864.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

Buyer's Q&A

Frequently Asked Questions

What does this belt drive?

On the listed applications it drives the fan, alternator, and water pump, depending on the specific routing for that truck. It transfers power from the crankshaft to those accessories.

Which vehicles does the K120864 fit?

It is a direct-fit replacement for the 2004-2007 Kenworth T2000, 2004-2007 Kenworth T600A, 2004-2007 Kenworth T800, and 2013 Western Star 4900SA. Check the "Vehicles it fits" section to confirm your truck.

How do I know when to replace the serpentine belt?

Signs it may need replacing include squealing, visible cracking, glazing, chunking, or fraying along the ribs. Inspect it during routine service.

Should I check anything else during installation?

Yes. Inspect the tensioner and idler pulleys while the belt is off, since a worn tensioner or pulley can shorten a new belt's life.

How is the belt routed?

Route it exactly as shown on the vehicle's belt-routing diagram so it seats correctly on every pulley in the accessory drive.