Dayco 5030323 Serpentine Belt - Alternator and Water Pump

Dayco 5030323 Serpentine Belt Overview

The Dayco 5030323 serpentine belt is built for accessory drive applications that require reliable power transfer to the alternator and water pump. It is a fitment-based replacement for select Geo Metro, Pontiac Firefly, Suzuki Swift, Chevrolet Metro, and Chevrolet Sprint models.

Made from EPDM with aramid reinforcement, this black K-section belt uses a straight rib profile for consistent grip and wear resistance in everyday engine bay conditions.

Key Features

• Part number: 5030323
• EPDM construction with aramid reinforcement
• 3-rib, K-section serpentine belt design
• Black finish with straight rib profile
• Effective length: 32.28 in. (819.92 mm)
• Outside circumference: 32.94 in. (836.68 mm)
• Top width: 0.40 in.
• Operating temperature range: -45°F to 212°F
• Meets SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5030323 is a serpentine belt for accessory drive belt system service on vehicles that route alternator and water pump drive through a compact 3-rib layout. The EPDM rubber compound is paired with aramid reinforcement to support belt stability, while the straight rib profile helps maintain contact across the pulley surface. This belt is a direct-fit option for 1989-1995 Geo Metro, 1989-1995 Pontiac Firefly, 1989-1994 Suzuki Swift, 1992 Chevrolet Metro, and 1989-1992 Chevrolet Sprint applications with alternator and water pump drive routing. The part number 5030323 is also referenced in cross-application catalogs for the same fitment family.

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 alternator drive performance
• Water pump drive issues caused by belt deterioration
• Incorrect belt length or rib count during replacement service

Installation Notes and Tips

Verify pulley alignment, belt routing, and tensioner condition before installation. Confirm the 3-rib K-section profile and the 32.28-inch effective length match the vehicle application before service. For fitment-specific replacement, use this belt on the listed Geo Metro, Pontiac Firefly, Suzuki Swift, Chevrolet Metro, and Chevrolet Sprint models with alternator and water pump drive routing.

Quality Assurance

This Dayco belt is manufactured to SAE J1459 and SAE J2432 standards for accessory drive belt applications. Its EPDM and aramid-reinforced construction is specified for durability across a wide operating temperature range.