Roadmax 4K372AP Serpentine Belt

Roadmax 4K372AP Serpentine Belt Overview

The Roadmax 4K372AP is an OE performance serpentine belt built for accessory drive service where a standard replacement is needed. Made with EPDM and polyester cord reinforcement, it is sized for 4-rib applications and measures 14 mm top width with a 949 mm effective length.

Roadmax’s Automotive V-Ribbed Belt (Standard) line is aimed at budget-conscious repairs that still call for dependable fit and everyday operation. This belt is a practical choice for accessory drive systems on vehicles such as the Infiniti G35, Hyundai Santa Fe, and Mazda Miata when the application calls for a 4K372AP belt profile.

Key Features

• EPDM construction for common accessory drive belt service
• Polyester cord material for reinforced belt stability
• 4-rib design for compatible serpentine belt routing
• 14 mm top width and 37.38 in. effective length
• 37.96 in. outside circumference for application matching
• OE performance grade for standard replacement needs
• Roadmax 4K372AP part number for easy identification

Detailed Description

The Roadmax 4K372AP serpentine belt is designed for accessory drive systems that power components such as the alternator, power steering, air conditioning compressor, fan, and water pump, depending on the vehicle and belt position. Its EPDM rubber construction and polyester cord reinforcement support consistent belt tracking in standard-duty automotive service. This part cross-references Gates K040372 for the same application.

Compatible With fitments including 2004-2007 Infiniti G35, Air Conditioning; 2004-2006 Hyundai Santa Fe, Alternator and Water Pump; and 1999-2005 Mazda Miata, Power Steering and Air Conditioning. The 4K372AP also appears in applications across Infiniti, Hyundai, Kia, Nissan, Suzuki, and other import and domestic platforms listed in the fitment data.

Common Problems This Belt Can Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or visible wear on the belt surface
• Loss of proper drive to the alternator, A/C, or power steering system
• Belt stretch or poor tracking caused by age and heat exposure
• Service replacement for a belt with incorrect length or rib count

Installation Notes and Tips

• Verify the belt routing diagram before removal and installation.
• Confirm rib count, top width, and effective length against the original belt.
• Inspect pulleys, tensioners, and idlers for wear before installing the new belt.
• Check the application position carefully, since this belt is listed for Air Conditioning, Power Steering, Fan and Alternator, and Water Pump drive positions depending on vehicle.
• Use the vehicle-specific fitment listing to confirm the exact year, make, model, and accessory position.

Quality Assurance

Roadmax positions this Automotive V-Ribbed Belt (Standard) line as an OE performance replacement for customers who want quality without stepping up to a premium belt. The 4K372AP is built to match the listed dimensions and application requirements for confirmed fitment coverage.