Dayco 5061380 Serpentine Belt - Fan, Alternator and Power Steering or Main Drive

Dayco 5061380 Serpentine Belt Overview

The Dayco 5061380 serpentine belt is a 6-rib accessory drive belt built for the main drive system on select Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD trucks. It uses EPDM rubber with aramid reinforcement for dependable belt tracking and long service life in demanding engine bay conditions.

• Part number: 5061380
• 6-rib, K-section serpentine belt for main drive applications
• EPDM, aramid reinforced construction
• Black finish with straight rib profile
• Top width: 0.82 in.
• Effective length: 138.00 in. / 3505.20 mm
• Outside circumference: 138.56 in. / 3519.43 mm
• Operating temperature range: -45°F to 212°F
• Meets SAE J1459 and SAE J2432 standards

Fitment Details

• Fits 2007-2009 Chevrolet Silverado 2500 HD, Main Drive; compatible with vehicles equipped with dual alternators.
• Fits 2007-2009 Chevrolet Silverado 3500 HD, Main Drive; compatible with vehicles equipped with dual alternators.
• Fits 2007-2009 GMC Sierra 2500 HD, Main Drive; compatible with vehicles equipped with dual alternators.
• Fits 2007-2009 GMC Sierra 3500 HD, Main Drive; compatible with vehicles equipped with dual alternators.

Detailed Description

Dayco 5061380 is a replacement serpentine belt for accessory drive systems that require a 138-inch effective length and 6-rib K-section profile. The EPDM construction is paired with aramid reinforcement to help maintain belt stability under heat, cold, and continuous engine load. This belt cross-references ACDelco 6K1380 and Gates K061380 for the same application.

For Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as GMC Sierra 2500 HD and Sierra 3500 HD models from 2007-2009, this belt is specified for the main drive position and notes dual alternator equipment. The Dayco 5061380 is a direct-fit serpentine belt choice when the vehicle calls for this exact length and rib configuration.

Common Problems This Belt Can Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or fraying on the belt surface
• Loss of proper belt tension due to age and wear
• Accessory drive slip affecting alternator, water pump, or other driven components
• Incorrect belt length after a previous replacement

Installation Notes and Tips

Verify the existing belt length, rib count, and routing before installation. Confirm dual alternator equipment on the listed Chevrolet Silverado HD and GMC Sierra HD applications, and inspect pulleys, tensioner operation, and idlers for wear before installing the new belt. Proper routing and pulley alignment are important for stable operation and belt life.

Quality Assurance

Dayco manufactures accessory drive components to meet SAE J1459 and SAE J2432 standards. The 5061380 is built with EPDM and aramid reinforcement for consistent performance across a wide operating temperature range.