Contitech 945K6MK Serpentine Belt - Accessory Drive

Serpentine Belt for Multi-V accessory drive systems

Contitech Multi-V serpentine belt 945K6MK is a fitment-specific replacement for accessory drive applications across a wide range of vehicles. It is listed for Mercedes-Benz, Buick, Chevrolet, Pontiac, Jeep, Ford, Cadillac, and GMC models with Multi-V routing.

Key features

• Multi-V serpentine belt construction for accessory drive systems.
• Fitment-specific coverage for many applications with notes for AC, power steering, and alternate belt widths.
• Compatible with Mercedes-Benz C300, E350, GL450, GL550, ML350, R350, SL550, and related applications.
• Also listed for Buick LaCrosse and Lucerne, plus Chevrolet Camaro, Firebird, and full-size van and truck applications.
• Part number 945K6MK helps identify the correct belt for the listed applications.

Detailed description

Contitech 945K6MK is a Multi-V serpentine belt for accessory drive use, with fitment that spans late-model Mercedes-Benz passenger vehicles and SUVs as well as earlier domestic cars, vans, and trucks. The application data includes specific notes such as Multi-V routing, AC-equipped configurations, power steering exceptions, and belt-width requirements, so matching the exact vehicle setup is important. For buyers searching for a Mercedes-Benz C350 serpentine belt, a Buick Lucerne accessory drive belt, or a Chevrolet Camaro Multi-V belt, this part number provides a direct reference point.

Contitech Multi-V belts are identified by the brand’s product line naming and are used in accessory drive systems where the belt drives engine accessories. Part number 945K6MK appears across multiple Mercedes-Benz applications including C300, E350, GL450, and SL550, along with Buick LaCrosse and Lucerne coverage. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What this belt is used for

• Replacing a worn or cracked accessory drive belt.
• Restoring proper drive to alternator, A/C, and other belt-driven accessories.
• Addressing squeal, glazing, or belt tracking concerns.
• Matching application-specific belt routing and width requirements.
• Serving as a replacement for vehicles with Multi-V belt systems.

Installation notes and tips

Verify the exact year, make, model, engine, and accessory configuration before ordering. Several listings include notes such as “except speed sensitive steering,” “with AC,” “under 8500 GVW,” or specific belt width requirements, and those details must match the vehicle. Confirm the routing path and compare the existing belt length and profile to the catalog listing before installation.

Quality assurance

Contitech is a recognized supplier of belt-drive components, and the Multi-V line is cataloged for application-specific replacement use. Part number 945K6MK is listed against a broad set of verified fitments to support accurate selection.