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Dayco 5080868 Serpentine Belt
| Brand | Dayco 5080868 |
|---|---|
| Position | Fan, Alternator and Air Conditioning, Main Drive, and Fan and Alternator |
| Material | Epdm, aramid reinforced |
| Top Width | 1.10 |
| Color | Black |
| Effective Length | 2203.45 |
| Effective Length | 86.75 |
| Outside Circumference | 2217.68 |
| Outside Circumference | 87.31 |
| Rib Quantity | 8 |
| Cross Section | K-section |
| Maximum Operating Temperature | 100 |
| Maximum Operating Temperature | 212 |
| Minimum Operating Temperature | -42.7 |
| Minimum Operating Temperature | -45 |
| Rib Depth | Standard |
| Rib Profile | Straight rib |
| Standards | Sae j1459, sae j2432 |
| Fits | —16 vehicles |
Aramid reinforced. EPDM construction helps resist wear in accessory drive use.
8-rib design. Delivers reliable grip and smooth power transfer.
SAE J1459, SAE J2432. Built to meet recognized belt performance standards.
Cross-references ACDelco K080868HD, Beaver Bus 243-1559 and CARQUEST K080868HD for the same application. See all 14.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Dayco 5080868 Serpentine Belt Overview
The Dayco 5080868 serpentine belt is a K-section accessory drive belt built for demanding engine accessory systems. It uses EPDM with aramid reinforcement for stable performance, consistent rib tracking, and durability across a wide temperature range.
Compatible With heavy-duty truck and equipment applications that use an 8-rib, K-section belt profile, including Freightliner, Cummins, John Deere, and Navistar platforms where this size is specified.
Key Features
- Dayco serpentine belt, part number 5080868
- EPDM construction with aramid reinforcement for strength and wear resistance
- 8-rib, straight-rib design for accessory drive engagement
- K-section profile with 1.10 in top width
- Effective length: 86.75 in; outside circumference: 87.31 in
- Operating temperature range: -45°F to 212°F
- Built to SAE J1459 and SAE J2432 standards
Detailed Description
Dayco 5080868 is a black serpentine belt engineered for accessory drive systems that require an 8-rib K-section belt. The EPDM rubber compound helps maintain flexibility and wear characteristics, while aramid reinforcement adds tensile support for consistent belt tracking under load. This makes it a practical choice for commercial and industrial engines that rely on stable drive performance for alternators, water pumps, air conditioning compressors, and other belt-driven accessories. If you are sourcing a replacement serpentine belt for Freightliner, Cummins, or John Deere equipment, verify the belt dimensions and rib count against the original application before ordering.
This part cross-references ACDelco K080868HD for the same application.
What It Helps Address
- Squealing or slipping from a worn accessory drive belt
- Cracking, glazing, or rib wear on the existing serpentine belt
- Loss of accessory drive consistency under engine load
- Incorrect belt length or rib count during replacement service
- Premature belt deterioration from temperature extremes
Installation Notes and Tips
Confirm the belt path, rib count, and effective length before installation. Inspect pulleys, tensioners, and idlers for wear or misalignment, since damaged components can shorten belt life and affect tracking. Use the vehicle service information for the correct routing procedure and tensioner release method. For fitment-based searches, this Dayco 5080868 serpentine belt is commonly referenced for Freightliner, Cummins, John Deere, and Navistar applications that specify an 8-rib K-section belt.
Quality Assurance
This belt is manufactured to SAE J1459 and SAE J2432 standards, supporting consistent dimensional and performance requirements for accessory drive service.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Kenworth | T270 | 6.7L | L6 | DIESEL | Main Drive | 86 3/4 In. Belt |
| 2010 | Kenworth | T370 | 6.7L | L6 | DIESEL | Main Drive | Compatible with vehicles containing air conditioning. |
| 2009 | Kenworth | T170 | — | — | — | Main Drive | Compatible with vehicles containing air conditioning. |
| 2009 | Kenworth | T270 | 6.7L | L6 | DIESEL | Main Drive | Compatible with vehicles containing air conditioning. |
| 2009 | Kenworth | T370 | 6.7L | L6 | DIESEL | Main Drive | Compatible with vehicles containing air conditioning. |
| 2008 | Kenworth | T170 | — | — | — | Main Drive | Compatible with vehicles containing air conditioning. |
| 2008 | Kenworth | T270 | 6.7L | L6 | — | Main Drive | Compatible with vehicles containing air conditioning. |
| 2008 | Kenworth | T300 | 6.7L | L6 | — | Fan, Alternator and Air Conditioning | — |
| 2008 | Kenworth | T370 | 6.7L | L6 | — | Main Drive | Compatible with vehicles containing air conditioning. |
| 2006 | Country Coach Motorhome | Intrigue | 12.5L | -6 | — | Main Drive | — |
| 2006 | Country Coach Motorhome | Magna | — | — | — | Main Drive | — |
| 2005 | Country Coach Motorhome | Intrigue | 12.5L | -6 | — | Main Drive | — |
| 2005 | Country Coach Motorhome | Magna | — | — | — | Main Drive | — |
| 2005 | Peterbilt | 362 | 12.5L | -6 | — | Fan and Alternator | — |
| 2004 | Peterbilt | 362 | 12.5L | -6 | — | Fan and Alternator | — |
| 2003 | Peterbilt | 362 | 12.5L | -6 | — | Fan and Alternator | — |
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