Roadmax 4K400AP Serpentine Belt

Reliable Automotive V-Ribbed Belt for Multiple Vehicle Models

The Roadmax 4K400AP Automotive V-Ribbed Belt (Standard) is engineered to provide consistent performance and durability for a range of vehicles including Buick, Chevrolet, Honda, INFINITI, Jaguar, Kia, Mazda, Nissan, Oldsmobile, Pontiac, and Suzuki models. Designed with quality materials and precise dimensions, this serpentine belt ensures efficient accessory drive system operation.

• Constructed from durable EPDM material for enhanced heat and wear resistance
• Features a 4-rib design with a K cross section for optimal grip and flexibility
• Top width measures 14 mm (0.56 inches) for precise fitment
• Effective length of 1019 mm (40.133 inches) and outside circumference of 1032 mm (40.625 inches)
• Polyester cord material provides strength and stability under tension

About the Roadmax Automotive V-Ribbed Belt (Standard) Line

The Automotive V-Ribbed Belt (Standard) line by Roadmax focuses on delivering serpentine belts that meet OEM specifications for standard accessory drive systems. This product line emphasizes reliable material composition and accurate sizing to maintain proper engine accessory function across various vehicle makes and models. The 4K400AP part is a representative example, combining EPDM construction with a polyester cord for balanced durability and performance.

Product Details and Specifications

The Roadmax 4K400AP serpentine belt is designed with a K cross section, which is a common profile for automotive v-ribbed belts, ensuring compatibility with standard pulleys and accessory components. The belt’s 4 ribs provide a stable contact surface, reducing slippage and wear. EPDM rubber material offers resistance to heat, ozone, and aging, which is critical for maintaining belt integrity over time. The polyester cord embedded within the belt enhances tensile strength, helping the belt withstand the stresses of engine operation.

Compatible Vehicles and Applications

• Compatible with Buick models such as the Vanden Plas
• Fits Chevrolet vehicles including the J2000 and Sunbird
• Suitable for Honda Prelude and Protege models
• Works with INFINITI J30 and Nissan 300ZX
• Also fits Jaguar XJ6 and XJR, Kia Sephia, Mazda 929, Oldsmobile Firenza, Pontiac Skyhawk, and Suzuki Grand Vitara and Tracker

Installation Notes and Tips

• Ensure the belt routing matches the vehicle’s accessory drive diagram
• Inspect pulleys and tensioners for wear before installation
• Use proper tensioning tools to avoid over-tightening or slack
• Replace the belt if cracks, fraying, or glazing are present
• Verify part number 4K400AP matches vehicle specifications before installation

Quality Assurance and Warranty

Roadmax Automotive V-Ribbed Belts are manufactured to meet industry standards for material quality and dimensional accuracy. The EPDM construction and polyester cord design contribute to long service life under normal operating conditions. While specific warranty details are not provided, Roadmax products typically adhere to quality control processes to ensure reliable performance in compatible vehicles.