Dayco 5060780 Serpentine Belt - Air Conditioning, Alternator and Tensioner or Main Drive

Dayco 5060780 Serpentine Belt Overview

The Dayco 5060780 serpentine belt is a 6-rib accessory drive belt built for consistent power transfer in main drive and accessory drive applications. It uses EPDM rubber with aramid reinforcement for durability, stable tension retention, and reliable operation across a wide temperature range.

Compatible With select Land Rover Range Rover Sport, Range Rover, Subaru Legacy, Subaru Outback, Chevrolet Captiva Sport, Buick Regal, Buick LaCrosse, Cadillac CTS, Saab 9-5, and Mercedes-Benz 190E applications, this belt is sized for direct replacement service where the original belt matches the listed dimensions.

Key Features

• Part number: 5060780
• 6-rib K-section serpentine belt for accessory drive systems
• EPDM construction with aramid reinforcement for strength and wear resistance
• Black belt with straight rib profile
• Top width: 0.82 in.
• Effective length: 78.00 in. / 1981.20 mm
• Outside circumference: 78.66 in. / 1997.97 mm
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5060780 is a serpentine belt for accessory drive belt system components, engineered for vehicles that rely on a single belt to drive multiple accessories. The EPDM compound helps resist heat and aging, while aramid reinforcement adds tensile strength for stable performance under load. With a 6-rib, straight-rib design and a K-section profile, this belt is specified for applications that require the listed 78-inch effective length and 0.82-inch top width.

This part cross-references Gates K060780 and ACDelco 6K780 for the same application. It is a direct-fit option for select 2016-2021 Land Rover Range Rover Sport main drive applications, 2016-2019 Land Rover Range Rover main drive applications, and 2015-2019 Subaru Legacy and Subaru Outback main drive applications, along with additional listed fitments including Buick Regal, Buick LaCrosse, Chevrolet Captiva Sport, Cadillac CTS, Saab 9-5, and Mercedes-Benz 190E.

What This Belt Helps Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing belt
• Loss of proper drive to alternator, A/C compressor, or tensioner-driven accessories
• Belt length mismatch after replacement of the original belt
• Heat-related belt deterioration in high-temperature engine bays

Installation Notes and Tips

• Verify the belt length, rib count, and cross section against the original belt before installation.
• Inspect pulleys, tensioners, and idlers for wear or misalignment before fitting the new belt.
• Confirm the application notes, including the Chevrolet Captiva Sport listing for vehicles without an electric power steering pump and the Land Rover Range Rover Sport note for vehicles excluding active suspension.
• Use the vehicle’s belt routing diagram to ensure correct installation on the main drive or accessory drive path.

Quality Assurance

Dayco manufactures this belt to SAE J1459 and SAE J2432 standards, with EPDM and aramid-reinforced construction selected for consistent accessory drive performance. The 5060780 part number is also referenced in OE and aftermarket catalogs for the listed applications, including Subaru Legacy, Subaru Outback, and Land Rover Range Rover Sport fitments.