Roadmax 4K338AP Serpentine Belt - Air Conditioning or Power Steering

Roadmax 4K338AP Serpentine Belt Overview

The Roadmax 4K338AP is a standard automotive V-ribbed belt built with EPDM and polyester cord for everyday accessory drive service. It is sized for specific air conditioning and power steering applications across BMW, Mazda, Nissan, Chrysler, Dodge, and Toyota vehicles, including BMW X5, BMW 320i, Mazda Miata, Nissan Altima, and Toyota Tundra fitments.

Roadmax positions this belt line for budget-conscious buyers who want dependable replacement quality without stepping up to a premium-performance belt. The 4K338AP part number is also listed under common cross-reference applications such as Gates K040338 and Bando 4PK860.

Key Features

• EPDM construction for standard accessory drive belt service
• Polyester cord material for belt stability
• 4-rib V-ribbed design
• Top width: 14 mm (.56 in.)
• Effective length: 860 mm (33.86 in.)
• Outside circumference: 874 mm (34.375 in.)
• Cross section designation: K
• Fits air conditioning and power steering positions listed below

Detailed Description

Roadmax 4K338AP is an Automotive V-Ribbed Belt (Standard) designed for accessory drive systems that require a 4-rib, K-section serpentine belt. Its EPDM belt material and polyester reinforcement are specified for routine replacement use in vehicles that need a correctly sized belt for the air conditioning compressor or power steering drive. This part number is a direct search match for drivers looking for a Roadmax 4K338AP serpentine belt for BMW X5 air conditioning service, Mazda Miata power steering service, Nissan Altima air conditioning service, or Toyota Tundra air conditioning service.

This part cross-references Gates K040338 and Bando 4PK860 for the same application.

What It Helps Address

• Squealing or slipping accessory drive belt noise
• Cracking, glazing, or visible wear on the belt ribs
• Loss of belt tension from age-related belt stretch
• Air conditioning compressor drive issues caused by a worn belt
• Power steering belt wear on Mazda Miata applications

Installation Notes and Fitment

• Fits 2004-2006 BMW X5, Air Conditioning
• Fits 2003-2005 BMW 320i, Air Conditioning
• Fits 1999-2005 Mazda Miata, Power Steering; W/O A.C.
• Fits 1993-1997 Mazda Miata, Power Steering; W/O A.C.
• Fits 1990-1991 Mazda Miata, Power Steering; W/O A.C.
• Fits 2000-2004 Toyota Tundra, Air Conditioning
• Fits 2002-2003 BMW 745i, Air Conditioning
• Fits 2002-2003 BMW 745Li, Air Conditioning
• Fits 1998-2001 Nissan Altima, Air Conditioning
• Fits 1998-2000 Chrysler Sebring, Air Conditioning
• Fits 1998-2000 Dodge Avenger, Air Conditioning
• Fits 1992 Mazda Miata, Air Conditioning

Verify belt routing, rib count, and measured length before installation. Confirm the application position matches the vehicle’s accessory drive layout, especially on Mazda Miata power steering and air conditioning configurations. The Roadmax 4K338AP should be matched to the listed fitment and belt dimensions for proper tension and pulley engagement.

Quality Assurance

Roadmax markets this standard V-ribbed belt as a value-focused replacement option for customers who want quality construction for everyday service. EPDM material and polyester cord support consistent fitment in the listed BMW, Mazda, Nissan, Chrysler, Dodge, and Toyota applications.