Dayco 5040390 Serpentine Belt

Dayco 5040390 Serpentine Belt Overview

The Dayco 5040390 serpentine belt is a K-section accessory drive belt built with EPDM and aramid reinforcement for dependable operation in demanding engine accessory systems. With a 4-rib, straight-rib profile and deep rib design, it is engineered for consistent grip across the alternator, air conditioning, power steering, water pump, idler, and tensioner applications listed below.

Use this belt when you need a direct-fit replacement for vehicles such as the Honda Accord, Mitsubishi Montero, and Hyundai Sonata. The Dayco 5040390 is sized for specific OE-style routing and is cross-referenced to common aftermarket and OE part numbers for the same application.

Key Features

• EPDM construction with aramid reinforcement for durability in accessory drive service
• 4-rib K-section serpentine belt with a straight rib profile
• Black finish with deep rib depth for stable belt tracking
• Effective length: 39.00 in. (990.60 mm)
• Outside circumference: 39.66 in. (1007.37 mm)
• Top width: 0.54 in.
• Built to SAE J1459 and SAE J2432 standards
• Operating temperature range: -45°F to 212°F

Detailed Description

Dayco 5040390 is a serpentine belt for accessory drive systems that require a 4-rib K-section belt with the listed dimensions. Its EPDM rubber compound is paired with aramid reinforcement to help maintain belt integrity under heat, cold, and continuous accessory loading. This makes it a practical replacement for long-tail searches such as Dayco 5040390 serpentine belt for 2005-2007 Honda Accord air conditioning and tensioner, or 1992-1998 Hyundai Sonata alternator and water pump belt.

This part cross-references Gates K040390 and Bando 4PK990 for the same application. It also appears in fitments for 1990s Mitsubishi, Mazda, Ford, Jaguar, and Suzuki vehicles, including the Mitsubishi Montero, Mazda Protege, and Ford Escort.

Vehicle Fitment

• Fits 2005-2007 Honda Accord, Air Conditioning and Tensioner
• Fits 1997-1999 Mitsubishi Montero, Water Pump To Power Steering
• Fits 1999 Mitsubishi Montero Sport, Fan To Power Steering
• Fits 1992-1998 Hyundai Sonata, Alternator and Water Pump
• Fits 1995-1998 Mazda Protege, Air Conditioning and Power Steering
• Fits 1997 Suzuki Esteem, Air Conditioning and Power Steering
• Fits 1991-1996 Ford Escort, Air Conditioning and Power Steering
• Fits 1991-1996 Mercury Tracer, Air Conditioning and Power Steering
• Fits 1993-1995 Hyundai Elantra, Alternator and Water Pump
• Fits 1993-1995 Mitsubishi Diamante, Air Conditioning and Idler
• Fits 1990-1994 Mitsubishi Eclipse, Alternator and Water Pump
• Fits 1990-1994 Plymouth Laser, Alternator and Water Pump
• Fits 1993 Mazda 323, Air Conditioning and Power Steering
• Fits 1988-1992 Jaguar Vanden Plas, Fan and Alternator
• Fits 1987-1992 Jaguar XJ6, Fan and Alternator
• Fits 1992 Jaguar XJS, Fan and Alternator
• Fits 1992 Mitsubishi Expo, Alternator and Water Pump
• Fits 1989-1992 Mitsubishi Galant, Alternator and Water Pump

Installation Notes and Tips

Verify belt length, rib count, and routing against the existing belt and the vehicle’s accessory drive diagram before installation. Inspect pulleys, tensioner operation, and accessory alignment at the same time, since worn components can shorten belt life or cause noise. Confirm the application by matching the vehicle year, make, model, and accessory position listed above before ordering Dayco 5040390.

Quality Assurance

This belt is manufactured to SAE J1459 and SAE J2432 standards and uses EPDM with aramid reinforcement for consistent service in accessory drive systems. Dayco 5040390 is specified for direct replacement use in the listed Honda, Mitsubishi, Hyundai, Mazda, Ford, Mercury, Jaguar, Suzuki, and Plymouth applications.