Dayco 5070677 Serpentine Belt - Main Drive

Dayco 5070677 Serpentine Belt Overview

The Dayco 5070677 serpentine belt is a K-section accessory drive belt built for specific Honda and Acura applications. It uses EPDM with aramid reinforcement for stable belt performance across a wide temperature range, making it a direct-fit option for the main drive system on select Accord, RDX, TSX, and RSX models.

Key Features

• Part number: 5070677
• EPDM construction with aramid reinforcement for durability
• 7-rib, straight-rib profile for accessory drive operation
• Black belt with .96 top width
• Effective length: 67.7 in. / 1719.58 mm
• Outside circumference: 68.3 in. / 1734.82 mm
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5070677 is a serpentine belt for the accessory drive belt system, engineered for vehicles that rely on a single belt to drive multiple engine accessories. Its EPDM rubber construction and aramid reinforcement help maintain belt integrity under heat, cold, and continuous load. This belt is specified for the main drive position on 2019-2021 Acura RDX, 2009-2014 Acura TSX, 2002-2004 Acura RSX, and 2018-2022 Honda Accord applications. If you are searching for a Dayco 5070677 serpentine belt for a 2018-2022 Honda Accord or a main drive belt for Acura RDX, this part matches the listed fitment.

What It Helps Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the belt surface
• Loss of belt tension caused by age and heat cycling
• Accessory drive noise on Honda Accord and Acura main drive systems
• Replacement needs for a worn 7-rib serpentine belt

Installation Notes and Tips

Verify the belt routing, rib count, and effective length before installation. Confirm the vehicle’s engine and accessory drive configuration against the listed fitment: 2018-2022 Honda Accord, 2019-2021 Acura RDX, 2009-2014 Acura TSX, and 2002-2004 Acura RSX. Inspect pulleys, tensioner condition, and accessory alignment before installing the new belt. This part cross-references Dayco 5070677 for the same application.

Quality Assurance

Dayco manufactures this belt to SAE J1459 and SAE J2432 standards, with EPDM and aramid reinforcement selected for accessory drive service in demanding temperature conditions. The specified material and dimensional data support accurate replacement selection for the listed Honda and Acura applications.