Gates K030425 Serpentine Belt - Alternator

Gates K030425 Premium OE Micro-V Belt

The Gates K030425 is a Premium OE Micro-V serpentine belt built for accessory drive applications that demand accurate sizing and consistent belt tracking. It uses OE-matched construction and materials to support dependable operation on import and domestic vehicles, including 1986-1990 Acura Legend alternator applications.

Key Features

• Premium OE Micro-V belt from Gates
• Part number: K030425
• 3-rib automotive V-ribbed belt, standard type
• EPDM belt material for durability in accessory drive service
• Polyester cord construction for stable belt reinforcement
• OE Performance rating for OE-style fit and function
• Effective length: 42.54 in. (1081 mm)
• Outside circumference: 43.125 in. (1095 mm)
• Top width: 0.42 in. (11 mm)

Product Details

Gates Premium OE Micro-V belts are built to match OE size, construction, and materials so the belt seats correctly in the accessory drive system and maintains proper performance under everyday engine loads. The K030425 is a K-section, 3-rib serpentine belt with EPDM rubber and polyester cord reinforcement, making it a direct-fit choice for vehicles that require this exact profile. This part number, K030425, is listed for 1986-1990 Acura Legend alternator applications, and it also cross-references Dayco 5030425 for the same application.

The Gates Premium OE Micro-V Belt line focuses on precision fit for accessory drive systems where belt length, rib count, and material construction matter. For Acura Legend owners searching for an alternator belt replacement, or for buyers comparing a Gates K030425 serpentine belt against OE-style alternatives, this belt provides the specified dimensions and OE Performance rating needed for a proper service replacement.

Common Problems This Belt Can Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing serpentine belt
• Incorrect belt length after previous replacement
• Poor belt tracking on the alternator drive path
• Loss of accessory drive performance caused by belt deterioration

Installation Notes and Tips

• Verify the belt routing and confirm the 3-rib K-section profile before installation.
• Inspect pulleys, tensioners, and idlers for wear or misalignment before fitting the new belt.
• Check the existing belt length against the listed effective length of 42.54 in. to confirm application match.
• Use the vehicle service procedure for proper tensioning and routing on the accessory drive system.
• For fitment confirmation, this part fits 1986-1990 Acura Legend, alternator.

Quality Assurance

Gates manufactures this Micro-V belt to OE-size and OE-material standards for consistent fit and service performance in the accessory drive system. The K030425 is specified for confirmed Acura Legend alternator applications and is built to the dimensions required for that use.