Dayco 6100672 Serpentine Belt - Fan and Water Pump

Dayco 6100672 Serpentine Belt Overview

The Dayco 6100672 serpentine belt is a double-sided K-section belt built for accessory drive systems that require reliable power transfer and stable rib tracking. Made from EPDM with aramid reinforcement, it is engineered for demanding underhood conditions and long service life in the correct application.

Compatible With heavy-duty accessory drive setups, this belt is a direct replacement choice for vehicles that use a 10-rib, double-sided configuration. It is commonly searched as a serpentine belt for Mack applications and other commercial-duty accessory drive systems.

Key Features

• Part number: 6100672
• EPDM construction with aramid reinforcement for added strength
• 10-rib, double-sided K-section profile
• Black finish
• Effective length: 67.21 in. (1707.14 mm)
• Outside circumference: 68.09 in. (1729.49 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 6100672 is a serpentine belt for accessory drive belt system components that need a double-sided K-section layout and 10 ribs. The EPDM compound is selected for heat resistance and durability, while aramid reinforcement adds tensile strength for consistent belt performance under load. For buyers searching Dayco 6100672, Mack serpentine belt, or a 10-rib double-sided accessory drive belt, this part matches the listed dimensions and construction details for the specified application.

This part cross-references ACDelco 10DK672 and Gates DK100672 for the same application. It is also referenced in commercial parts catalogs under Mack 88GB469P672 and 21056225, as well as NAPA 25-D100672.

What This Belt Helps Address

• Squealing or slipping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing belt
• Loss of accessory drive consistency in high-load operation
• Incorrect belt length or rib count during replacement
• Fitment issues on double-sided K-section belt systems

Installation Notes and Tips

Verify the belt’s effective length, outside circumference, rib count, and double-sided K-section profile before installation. Confirm pulley alignment and inspect tensioner and idler components at the same time, since worn belt drive hardware can shorten belt life. For vehicle-specific searches, confirm the application against the exact accessory drive layout used on the Mack model or other listed vehicle before ordering.

Fits 2006-2011 Honda Civic, front right is not applicable here; this listing is for commercial accessory drive use and should be matched by belt dimensions and system design rather than passenger-car fitment language.

Quality Assurance

Dayco manufactures this belt to SAE J1459 and SAE J2432 standards, with EPDM and aramid-reinforced construction specified for durability in elevated-temperature operating environments. The listed dimensions and material details provide the basis for accurate replacement selection in the correct accessory drive application.