Roadmax 4K418AP Serpentine Belt - Air Conditioning or Power Steering

Roadmax 4K418AP Serpentine Belt Overview

The Roadmax 4K418AP is an automotive V-ribbed belt in the standard product line, built with EPDM construction and polyester cord reinforcement. It is a direct-fit serpentine belt choice for accessory drive service on select Chevrolet Corvette, Honda Accord, Acura CL, Isuzu Oasis, and Mitsubishi Montero applications.

Roadmax’s standard belt line is aimed at buyers who want dependable replacement quality without stepping up to a premium-performance belt. The 4K418AP uses a 4-rib, K-section design with an effective length of 1062 mm (41.81 in.) and an outside circumference of 1076 mm (42.375 in.).

Key Features

• Part number: 4K418AP
• Automotive V-ribbed belt (standard)
• EPDM belt material for modern accessory drive systems
• Polyester cord material for reinforcement
• 4-rib, K cross-section design
• Effective length: 1062 mm / 41.81 in.
• Outside circumference: 1076 mm / 42.375 in.
• Top width: 14 mm / 0.56 in.

Detailed Description

The Roadmax 4K418AP serpentine belt is built for accessory drive service where the belt routes power to components such as the air conditioning compressor or power steering system. Its EPDM rubber construction is suited to modern belt-drive environments, while the polyester cord helps maintain belt stability under operating load. This part number is commonly cross-referenced with Gates K040418 and Dayco 5040418 for the same application.

Compatible With select 2013 Chevrolet Corvette, air conditioning; 2006-2012 Chevrolet Corvette, air conditioning; 1999-2002 Honda Accord, power steering; 1997-1999 Acura CL, power steering; 1996-1999 Isuzu Oasis, power steering; and 1994 Mitsubishi Montero, power steering. Use the vehicle’s belt routing and OE reference to confirm the correct length and rib count before installation. Roadmax 4K418AP is also referenced by multiple OE and aftermarket numbers, including 4K418 and 4PK1062.

Common Problems This Belt Can Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing belt
• Loss of belt tension from age-related stretch
• Accessory drive noise during A/C or power steering operation
• Service replacement for a belt that no longer tracks correctly

Installation Notes and Tips

Verify rib count, effective length, and routing before installation. Inspect pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life. Confirm the application details for Chevrolet Corvette, Honda Accord, Acura CL, Isuzu Oasis, or Mitsubishi Montero models, especially where notes specify air conditioning, power steering, or dry sump system requirements.

Quality Assurance

Roadmax positions this standard V-ribbed belt as a practical replacement option for budget-conscious service work. The EPDM construction and reinforced cord design support consistent accessory drive operation in the specified applications.