Roadmax 4K405AP Serpentine Belt - Fan and Alternator or Power Steering and Water Pump

Roadmax 4K405AP Serpentine Belt Overview

The Roadmax 4K405AP is an automotive V-ribbed belt in the standard product line, built with EPDM rubber and polyester cord reinforcement for everyday accessory drive service. It is a practical choice for budget-conscious repairs where dependable fit and function matter more than premium-belt performance.

Compatible With Ford Escape, Lincoln Corsair, Nissan Quest, Mercury Villager, Nissan Maxima, and Nissan 300ZX applications listed below, this serpentine belt is sized for specific accessory drive layouts and OE-style replacement needs.

Key Features

• Roadmax Automotive V-Ribbed Belt (Standard) for accessory drive systems
• EPDM construction for common underhood belt service conditions
• Polyester cord material for belt stability
• 4-rib design for the listed applications
• Top width: 14 mm (.56 in.)
• Effective length: 1032 mm (40.649 in.)
• Outside circumference: 1047 mm (41.25 in.)
• Part number: 4K405AP

Product Details

The Roadmax standard V-ribbed belt line is positioned for drivers who want a straightforward replacement belt without stepping up to a premium-duty option. The 4K405AP uses EPDM material and polyester cord construction to serve the accessory drive system on select Ford, Lincoln, Nissan, and Mercury vehicles. This part number 4K405AP also cross-references Gates K040405 for the same application.

Fits 2023-2024 Ford Escape, N/A, with dual set of injectors. Fits 2023-2024 Lincoln Corsair, N/A, with dual set of injectors. Fits 1993-2002 Nissan Quest, power steering and water pump. Fits 1993-1998 Mercury Villager, power steering and water pump. Fits 1985-1994 Nissan Maxima, power steering and water pump. Fits 1984-1989 Nissan 300ZX, fan and alternator.

Common Uses

• Replacing a worn serpentine belt with visible cracking or glazing
• Restoring accessory drive operation after belt noise or slip
• Addressing charging, cooling, or power steering drive issues tied to belt wear
• Servicing vehicles with the specified 4-rib accessory drive layout
• Matching OE-style belt dimensions for listed Ford, Lincoln, Nissan, and Mercury applications

Installation Notes

Verify belt routing, rib count, and measured length against the vehicle’s accessory drive layout before installation. Inspect pulleys, tensioner condition, and alignment at the same time, since worn components can shorten belt life or create noise. Confirm the application details for the exact model year and engine configuration, especially on 2023-2024 Ford Escape and Lincoln Corsair listings with dual set of injectors.

Quality Assurance

Roadmax markets this standard belt as a value-focused option for customers who want quality without the added performance level of a premium belt. EPDM construction and polyester cord reinforcement support consistent service in the listed applications.