Dayco 5060878 Serpentine Belt - Main Drive

Dayco 5060878 Serpentine Belt Overview

The Dayco 5060878 serpentine belt is a K-section accessory drive belt built for main drive and alternator applications. It uses EPDM with aramid reinforcement for stable belt tracking, consistent rib engagement, and dependable operation across a wide temperature range.

Compatible With select Ford, Hyundai, Nissan, Toyota, Lexus, Saab, Chrysler, and Mercury applications, this belt is a direct-fit option for vehicles that call for an 87.79-inch effective length and 6-rib configuration. The Dayco 5060878 is also cross-referenced to common OE and aftermarket numbers for the same application.

Key Features

• EPDM construction with aramid reinforcement for durability in accessory drive service
• 6-rib, K-section design with straight rib profile
• Top width: 0.82 in.
• Effective length: 87.79 in. (2229.87 mm)
• Outside circumference: 88.45 in. (2246.63 mm)
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

This serpentine belt is engineered for accessory drive systems that rely on a single belt to turn critical components. The EPDM rubber compound helps maintain flexibility and wear resistance, while aramid reinforcement adds strength for demanding engine bay conditions. With a 6-rib K-section profile, the belt is sized for applications that require precise rib engagement and consistent drive performance. It is a practical replacement for vehicles such as the Ford E-350 Super Duty, Hyundai Genesis and Equus, Nissan Altima, Toyota Tundra and Sequoia, Lexus LS400, and Saab 9000, depending on engine and accessory configuration. This part number, 5060878, also aligns with several OE and aftermarket references for the same fitment.

Common Problems This Belt Can Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing belt
• Loss of accessory drive performance from belt stretch or slip
• Incorrect belt length after a previous replacement
• Drive issues on main drive or alternator belt applications

Installation Notes and Tips

Verify belt routing, rib count, and effective length before installation. Confirm the vehicle’s engine and accessory configuration, since listed fitment includes specific notes such as optional polyester cord, no electric power steering, or no air conditioning on certain applications. Inspect pulleys, tensioners, and idlers for wear before installing the new belt, and replace any damaged components that could affect belt tracking. For fitment examples, this belt fits 2021-2022 Ford E-350 Super Duty, Alternator, Single Alt.; 2011-2013 Hyundai Equus, Main Drive; and 2007-2012 Nissan Altima, Main Drive, Fitment: Optional - Polyester Cord.

Quality Assurance

Dayco manufactures accessory drive belts to SAE J1459 and SAE J2432 standards, supporting consistent material and performance requirements for automotive service applications.