Cloyes B40239 Accessory Drive Belt Kit

Accessory Drive Belt Kit Overview

Cloyes B40239 is a specific-fit accessory drive belt kit for GM vans and medium-duty applications that use a serpentine belt drive system. It combines matched components for a complete repair, helping restore belt alignment, tension control, and consistent accessory operation.

• Specific-fit accessory drive belt kit for targeted applications
• Standard replacement grade for routine service work
• Steel pulley construction for strength and stable operation
• Grooved EPDM belt design for durable, consistent belt tracking
• Black belt finish for a clean OE-style appearance

Matched Components for System Repair

This Cloyes accessory drive belt kit is built around the needs of the full belt drive system, not just the belt alone. The OE-quality tensioner, high-strength pulleys, and wear-resistant belt are selected to work together for proper belt tension, reduced vibration, and reliable alignment. For Chevrolet Express and GMC Savana service, B40239 supports a complete repair approach when replacing worn accessory drive components.

This part cross-references Monroe Shocks & Struts (e.g., BK5354) for the same application.

Common Repair Uses

• Broken or cracked serpentine belt
• Noise from worn belt drive components
• Belt slip caused by weak tension control
• Misalignment from aging pulleys
• Premature wear in the accessory drive system

Installation Notes

Verify engine and accessory-drive configuration before ordering, especially on Chevrolet Express, GMC Savana, and related applications with a 160A alternator or without A/C. Confirm the belt routing and component layout against the vehicle’s existing setup before installation. B40239 is a specific-fit kit, so matching the application details is important for correct service.

Quality Assurance

Cloyes states that this kit is backed by an industry-leading warranty and technical support. The brand also notes professional use and long-term reliability as part of the product’s design intent.