Dayco 5080880 Serpentine Belt

Dayco 5080880 Serpentine Belt Overview

The Dayco 5080880 serpentine belt is an 8-rib accessory drive belt built with EPDM and aramid reinforcement for consistent belt tracking and durability. It measures 88.00 inches in effective length and 88.66 inches in outside circumference, making it a direct replacement option for select heavy-duty and industrial accessory drive systems.

Use this Dayco serpentine belt when you need a black K-section belt with a straight rib profile and standard rib depth. It is engineered to operate across a wide temperature range and meets SAE J1459 and SAE J2432 standards.

Key Features

• Part number: 5080880
• EPDM construction with aramid reinforcement for added strength
• 8-rib K-section design for accessory drive applications
• Top width: 1.10 inches
• Effective length: 88.00 inches
• Outside circumference: 88.66 inches
• Black belt with straight rib profile
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5080880 is a serpentine belt for accessory drive belt system components where stable grip, rib alignment, and consistent power transfer matter. The EPDM compound helps the belt handle heat and wear, while aramid reinforcement adds tensile support for demanding service. This makes it a practical replacement for applications calling for an 8-rib, 88-inch belt such as Cummins, Freightliner, and John Deere equipment, as well as other systems using the same specification. This part cross-references Gates (e.g., K080878, K080878HD) for the same application.

Search terms such as Dayco 5080880 serpentine belt, 8 rib accessory drive belt, and 88 inch K-section belt are commonly used for this type of replacement. If you are servicing a Cummins, Freightliner, or John Deere drive system, verify rib count, length, and profile against the original belt before installation.

Common Uses

• Replacing a worn or cracked serpentine belt
• Correcting belt squeal caused by glazing or loss of grip
• Restoring accessory drive performance after belt stretch
• Addressing rib wear, fraying, or separation
• Servicing 8-rib drive systems in Cummins, Freightliner, and John Deere applications

Installation Notes

Confirm the belt routing, rib count, top width, and effective length before installation. Inspect pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life. For fitment-based searches, this belt is commonly referenced for Cummins, Freightliner, and John Deere applications using the 5080880 specification.

Quality Assurance

This Dayco belt is manufactured to SAE J1459 and SAE J2432 standards and uses EPDM with aramid reinforcement for durability in accessory drive service. Cross-reference numbers include Gates K080878 and K080878HD for the same application.