Roadmax 6K1177AP Serpentine Belt

Roadmax 6K1177AP Serpentine Belt Overview

Roadmax 6K1177AP is a standard automotive V-ribbed serpentine belt built with EPDM and a polyester cord for everyday accessory drive service. It is a practical OE-style replacement for drivers who want dependable belt performance without stepping up to a premium-duty belt.

This Roadmax serpentine belt is commonly used on Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, and GMC Savana 3500 applications with a single alternator, as well as select Chevrolet Silverado HD and GMC Sierra HD models with a 105A alternator and no vacuum pump.

Key Features

• Part number: 6K1177AP
• Automotive V-ribbed belt, standard construction
• EPDM rubber for belt durability in accessory drive service
• Polyester cord reinforcement for stable tension handling
• 6-rib design for multi-groove pulley engagement
• Top width: 0.807 in. / 20 mm
• Effective length: 117.72 in. / 2990 mm
• Outside circumference: 118.29 in. / 3005 mm

Product Details

Roadmax positions the 6K1177AP as a budget-conscious serpentine belt option for routine maintenance. The belt uses EPDM construction and a polyester cord to support consistent operation in the accessory drive system, where it helps transfer power to driven components such as the alternator and other belt-driven accessories. If you are searching for a serpentine belt for 2011-2016 GMC Savana 2500, 2011-2016 GMC Savana 3500, or a 2011-2016 Chevrolet Express van with a single alternator, this part number is a direct reference point for those applications. This part cross-references Gates K061177 and Dayco 5061178 for the same application.

What It Helps Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing serpentine belt
• Loss of belt grip on the alternator drive system
• Maintenance replacement for high-mileage Chevrolet and GMC truck or van belt drives
• Incorrect belt length when replacing a worn OE-style V-ribbed belt

Installation Notes

Verify pulley routing, rib count, and belt length before installation. Confirm the vehicle’s alternator and engine configuration, since fitment varies by application notes such as single alternator, 105A alternator, and no vacuum pump. For best results, inspect belt tensioner, idler pulleys, and pulley alignment before installing Roadmax 6K1177AP. Confirm the belt seats fully in each pulley groove after startup.

Quality Assurance

Roadmax markets the 6K1177AP as a standard replacement belt for customers who want solid quality in a value-focused product line. The EPDM construction and reinforced cord design support consistent service in everyday automotive use.

Compatible Vehicles

• Fits 2016 Chevrolet Express 2500, N/A; W/Single Alt.; Automotive V-Ribbed Belt (Standard)
• Fits 2011-2014 Chevrolet Express 2500, N/A; W/Single Alt.; Automotive V-Ribbed Belt (Standard)
• Fits 2016 Chevrolet Express 3500, N/A; W/Single Alt.; Automotive V-Ribbed Belt (Standard)
• Fits 2011-2014 Chevrolet Express 3500, N/A; W/Single Alt.; Automotive V-Ribbed Belt (Standard)
• Fits 2011-2016 GMC Savana 2500, N/A; W/Single Alt.; Automotive V-Ribbed Belt (Standard)
• Fits 2011-2016 GMC Savana 3500, N/A; W/Single Alt.; Automotive V-Ribbed Belt (Standard)
• Fits 2002-2005 Chevrolet Silverado 2500 HD, N/A; W/105A. Alt.; W/O V.P.; Automotive V-Ribbed Belt (Standard)
• Fits 2002-2005 Chevrolet Silverado 3500, N/A; W/105A. Alt.; W/O V.P.; Automotive V-Ribbed Belt (Standard)
• Fits 2002-2005 GMC Sierra 2500 HD, N/A; W/105A. Alt.; W/O V.P.; Automotive V-Ribbed Belt (Standard)
• Fits 2002-2005 GMC Sierra 3500, N/A; W/105A. Alt.; W/O V.P.; Automotive V-Ribbed Belt (Standard)