Dayco 5100604 Serpentine Belt - Fan or Fan and Water Pump

Dayco 5100604 Serpentine Belt Overview

The Dayco 5100604 serpentine belt is a K-section accessory drive belt built for consistent power transfer in the engine accessory drive system. It uses EPDM rubber with aramid reinforcement for durability, stable tensioning, and dependable operation across a wide temperature range.

Compatible With Volvo accessory drive belt applications, this belt is a direct-fit option for vehicles that require a 10-rib, 60.43-inch effective length serpentine belt. The Dayco 5100604 is also cross-referenced to OE-style replacement numbers for the same application.

Key Features

• Part number: 5100604
• EPDM construction with aramid reinforcement
• 10-rib K-section profile
• Black belt finish with straight rib profile
• Effective length: 60.43 in. (1534.93 mm)
• Outside circumference: 60.99 in. (1549.15 mm)
• Top width: 1.38 in.
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5100604 is a serpentine belt for accessory drive systems that need a 10-rib K-section belt with a 1.38-inch top width. The EPDM compound is paired with aramid reinforcement to support belt stability under heat, cold, and continuous engine operation. With a 60.43-inch effective length, this belt is specified for applications that require precise belt routing and consistent accessory drive performance.

This part cross-references ACDelco 9K500 and Volvo 20883508 for the same application. If you are servicing a Volvo accessory drive belt system, confirm rib count, length, and routing before installation. The Dayco 5100604 is also a relevant search match for Volvo serpentine belt replacement and 10-rib accessory drive belt service.

What It Helps Address

• Squealing or chirping from a worn serpentine belt
• Cracking, glazing, or rib wear on the accessory drive belt
• Loss of accessory drive consistency from belt stretch or fatigue
• Incorrect belt length or rib count during Volvo belt replacement
• Heat-related belt deterioration in demanding engine bay conditions

Installation Notes and Tips

Verify the belt routing diagram, rib count, and measured length before installation. Inspect pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life. For Volvo applications, confirm the OE part number and compare the old belt’s dimensions to the Dayco 5100604 before final fitment.

Fits 2006-2011 Volvo accessory drive belt applications where a 10-rib, 60.43-inch serpentine belt is specified. Fits Volvo models using OE reference 20883508 and related 10-rib routing. Fits Volvo serpentine belt service applications requiring Dayco 5100604.

Quality Assurance

Dayco manufactures accessory drive components to meet SAE J1459 and SAE J2432 standards. The EPDM and aramid-reinforced construction is selected for durability and stable performance in automotive belt drive systems.