Gates K100840 Serpentine Belt - Supercharger

Gates K100840 Premium OE Micro-V Belt

The Gates K100840 is a Premium OE Micro-V serpentine belt built for precise fit and consistent accessory drive performance. It is specified for the supercharger drive on 2007-2012 Ford Mustang applications, giving buyers a direct replacement option for the correct OE-style belt length and rib profile.

Gates Micro-V belts use OE-matched construction and materials to help maintain proper belt tracking, stable operation, and reliable power transfer in demanding engine accessory systems. For Ford Mustang supercharger service, the K100840 offers the dimensions and design needed for a precise replacement.

Key Features

• Premium OE Micro-V belt from Gates
• Part number K100840
• 10-rib automotive V-ribbed belt design
• EPDM belt material for durability in underhood heat
• Polyester cord construction for strength and stability
• Effective length: 84.06 in. (2135 mm)
• Outside circumference: 84.625 in. (2149 mm)
• Top width: 1.367 in. (35 mm)
• OE performance rating for OE-style replacement needs

Product Details

The Gates Premium OE Micro-V Belt line is built for drivers who want an OE-style replacement with the correct size, construction, and material selection for the application. This K-section belt is engineered for accessory drive use and is listed here for the supercharger position on 2007-2012 Ford Mustang models. If you are searching for a Ford Mustang supercharger belt, Gates K100840 is a direct-fit reference to verify against your existing belt and vehicle requirements.

This part cross-references Dayco 5100840 and Continental 4100839 for the same application.

What It Helps Address

• Squealing or slipping from a worn supercharger belt
• Cracking, glazing, or fraying on the existing belt
• Incorrect belt length after prior replacement
• Loss of consistent accessory drive engagement
• Fitment issues on 2007-2012 Ford Mustang supercharger applications

Installation Notes

Verify the belt routing, rib count, and measured length before installation. Confirm the supercharger application on your 2007-2012 Ford Mustang and inspect pulleys, tensioner condition, and alignment before fitting the new belt. A worn pulley or weak tensioner can shorten belt life and affect tracking.

Quality Assurance

Gates is known for OE-style belt engineering, and this Micro-V belt is built to match OE size, construction, and materials for the listed application. The OE performance rating supports a replacement choice focused on fit and dependable operation.