Dayco 5080735 serpentine belt for the 2012-2015 Caterpillar CT660 6-cylinder 12.4L and other vehicles carries engine power to the belt-driven fan, alternator and water pump.
- EPDM rubber body with aramid reinforcement
- K-section profile with straight ribs and standard rib depth
- Operating range from -45 F to 212 F (-42.7 C to 100 C)
- Listed to SAE J1459 and SAE J2432 standards
Quick facts
- Part: Dayco 5080735 serpentine belt
- Fits: the 2012-2015 Caterpillar CT660 6-cylinder 12.4L and other vehicles
- Position: fan and alternator, fan, fan to alternator, alternator and water pump, fan, alternator and water pump, fan, alternator and idler, main drive
- Material: EPDM, aramid reinforced
- Condition: New
Cracks, fraying or glazed ribs, or a squeal at start-up, can mean the belt is worn. A weak tensioner, a seized idler pulley or a failing alternator or water pump bearing can be behind the same signs, so find the cause before buying a belt.
Fits
The belt is listed for a wide range of Freightliner, International and Sterling Truck models, including the 2012-2013 International Lonestar, the 2002 Freightliner FL80 6-cylinder 7.2L and the 2002-2003 FL80 6-cylinder 5.9L. If your truck is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: fan and alternator, fan, fan to alternator, alternator and water pump, fan, alternator and water pump, fan, alternator and idler, main drive
- Quantity per vehicle: 1
- Cross section: K-section
- Rib profile: straight rib
- Rib depth: standard
Build and materials
- Material: EPDM, aramid reinforced
- Standards: SAE J1459, SAE J2432
- Operating temperature: -45 F to 212 F (-42.7 C to 100 C)
- Condition: new
In the box
One serpentine belt. Each vehicle it is listed for takes one.
Interchange: JK8-742 · 25-080733 · 25-080733HD · 25-080734 · 25-080734HD · 25-78073
8K733 · 8K734 · K080733HD · K080734HD · 8PK1865 · 8PK1870 · K080734 · 4080735 · 4080735X · 735K8
This part cross-references / interchanges with the following part numbers:
8K733, 8K734, K080733HD, K080734HD, 8PK1865, 8PK1870, K080734, 4080735, 4080735X, 735K8, JK8-742, 25-080733, 25-080733HD, 25-080734, 25-080734HD, 25-78073
Frequently Asked Questions
Does the Dayco 5080735 belt fit the 2012-2015 Caterpillar CT660 6-cylinder 12.4L?
Yes, Dayco 5080735 is listed for the 2012-2015 Caterpillar CT660 6-cylinder 12.4L, which takes one belt. For other trucks, check the "Vehicles it fits" section.
What is the Dayco drive belt 5080735 made of?
Dayco 5080735 is EPDM, aramid reinforced. It is a K-section belt with a straight rib profile and standard rib depth.
Is the Dayco fan belt 5080735 a serpentine belt?
Yes. Dayco 5080735 is a serpentine belt, and its catalog positions include fan and alternator, fan to alternator, alternator and water pump, and main drive.
What temperature range does this K-section serpentine belt handle?
The rated operating range is -45 F to 212 F (-42.7 C to 100 C). The belt is listed to the SAE J1459 and SAE J2432 standards.
What can I look for on a worn serpentine belt?
With the engine off and cool, look for cracks, fraying or a glazed, shiny rib surface on the belt. Any of these can mean the belt is worn.
