Cloyes B40275 Accessory Drive Belt Kit

Accessory Drive Belt Kit Overview

Cloyes B40275 is a specific-fit accessory drive belt kit for vehicles that use a grooved serpentine belt system. It is built as a standard replacement solution for restoring belt drive performance when wear, stretch, or pulley issues affect system operation.

Compatible with Mazda CX-9, Mazda 6, Ford Fusion, Lincoln MKZ, Ford Edge, Ford Explorer, and Lincoln MKX applications, this kit supports a complete repair approach for the accessory drive system. Part number B40275 is also referenced as BK4203 for the same application.

Key Features

• Standard replacement accessory drive belt kit for specific-fit applications.
• Grooved black belt construction for serpentine drive systems.
• OE-quality tensioner design for smooth belt control.
• High-strength pulleys for accurate belt alignment and reduced vibration.
• Wear-resistant EPDM belt material for resistance to stretching and cracking.

Detailed Product Description

Cloyes B40275 is engineered for accessory drive systems where belt condition, pulley alignment, and tension control all affect reliability. The kit combines a grooved belt with matched drive components to support consistent operation across the accessory drive system. For Mazda CX-9 and Mazda 6 owners, as well as Ford Fusion, Ford Edge, Ford Explorer, Lincoln MKZ, and Lincoln MKX applications, this part number provides a direct replacement path for common belt-drive service needs. B40275 is intended for specific-fit applications and is built around standard replacement requirements rather than universal coverage.

Cloyes positions its accessory drive kits as complete repair solutions, and this kit follows that approach by pairing the belt with related components needed for the application. The result is a repair package focused on belt tracking, tension stability, and long-term system consistency.

What It Helps Address

• Squealing or slipping accessory drive belts.
• Visible belt cracking, glazing, or stretching.
• Poor pulley alignment or belt tracking concerns.
• Noise from worn belt-drive components.
• Reduced accessory drive system consistency.

Installation Notes and Tips

Inspect the full accessory drive system before installation and replace worn belt-driven components together when the application calls for it. Confirm the vehicle’s exact fitment against the listed years and model before ordering. Use the part number B40275 when cross-checking service information or replacement references.

Quality Assurance

Cloyes states that these accessory drive kits are backed by an industry-leading warranty and technical support. The brand also notes more than a century of professional use in the aftermarket.