Roadmax 6K840AP Serpentine Belt

Roadmax 6K840AP Serpentine Belt Overview

The Roadmax 6K840AP is a standard automotive V-ribbed serpentine belt built with EPDM rubber and polyester cord reinforcement. It is sized for applications calling for a 6-rib belt with an effective length of 83.97 in. and an outside circumference of 84.5 in.

Roadmax positions this belt line for budget-conscious buyers who want dependable replacement quality without stepping up to a premium-performance belt. The 6K840AP is a direct-fit option for a wide range of Chrysler, Dodge, Ford, Hyundai, Kia, Mercedes-Benz, Volkswagen, and other accessory drive belt applications.

Key Features

• Part number: 6K840AP
• Brand line: Automotive V-Ribbed Belt (Standard)
• 6-rib serpentine belt construction
• EPDM belt material for modern accessory drive systems
• Polyester cord material for reinforcement
• Top width: 0.807 in. / 20 mm
• Effective length: 83.97 in. / 2133 mm
• Outside circumference: 84.5 in. / 2146 mm
• Cross section designation: K

Product Details

The Roadmax 6K840AP serpentine belt is designed for accessory drive systems that require a standard V-ribbed belt with the listed dimensions and 6-rib profile. It is a practical replacement choice for vehicles such as the Mercedes-Benz GLE350, GLK350, ML350, and E350, as well as Hyundai Sonata and Tucson, Kia Optima and Sportage, and select Ford truck and car applications. This part cross-references Gates K060840 and Continental 6K2130 for the same application.

Use the 6K840AP when replacing a worn serpentine belt on vehicles including the Ford F-150, Ford Escape, Dodge Charger, or Mercedes-Benz E350 where the belt routing and length match the OE specification. The Roadmax 6K840AP helps maintain proper accessory drive operation across the alternator, power steering, and other belt-driven components in the vehicle’s front-end drive system.

What This Belt Helps Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing serpentine belt
• Loss of belt tension caused by age and mileage
• Accessory drive noise related to belt deterioration
• Reduced belt grip on pulleys in standard V-ribbed applications

Installation Notes and Fitment

Compatible With 2016-2018 Mercedes-Benz GLE350, N/A; 2013-2015 Mercedes-Benz GLK350, N/A; 2013-2015 Mercedes-Benz ML350, N/A; 2014 Mercedes-Benz E350, N/A; 2011-2013 Hyundai Sonata, N/A; 2013 Hyundai Tucson, N/A; 2011-2013 Kia Optima, N/A; 2011-2013 Kia Sportage, N/A; 2012 Hyundai Tucson, N/A; 2006-2010 Chrysler 300, N/A; 2006-2010 Dodge Charger, N/A; 2006-2008 Dodge Magnum, N/A; 2005-2008 Ford F-150, N/A; 2005-2008 Ford F-250, N/A; 2008 Ford F-350, N/A; 2005-2006 Ford F-350, N/A; 2006-2008 Lincoln Mark LT, N/A; 2005-2007 Ford Escape, Accessory Drive; 2005-2007 Ford Five Hundred, N/A; 2005-2007 Ford Focus, N/A; 2005-2007 Ford Freestyle, N/A; 2005-2007 Mercury Mariner, Accessory Drive; 2005-2007 Mercury Montego, N/A; 2005-2006 Mazda Tribute, Accessory Drive; 2001-2003 Volkswagen EuroVan, Alternator; 1998-1999 Mercedes-Benz E300, N/A; and 1992-1995 Volkswagen EuroVan, N/A.

Before installation, confirm the belt length, rib count, and routing against the vehicle’s accessory drive layout. This belt is listed for multiple configurations, including W/O A.C., W/Elec. P.S., and alternator-specific applications, so matching the exact vehicle notes is important. The part number 6K840AP should be verified against the existing belt or OE reference before replacement.

Quality Assurance

Roadmax markets this standard V-ribbed belt line as a value-focused replacement option for customers who want quality materials and correct fitment without premium-belt performance features. EPDM construction and polyester cord reinforcement support everyday accessory drive service in the specified applications.