The Genuine Dayco Poly Rib Automotive Belt 5040323 4PK0820 A7 is a premium OEM replacement serpentine belt engineered to provide efficient power transfer and dependable accessory drive performance. Designed with a 4-rib (4PK0820) configuration, this belt helps drive essential engine accessories such as the alternator, water pump, air conditioning compressor, and power steering system while maintaining smooth and reliable operation.
Constructed from high-quality EPDM rubber with reinforced tensile cords, the belt is designed to resist heat, cracking, stretching, and wear under demanding operating conditions. Its Poly Rib design maximizes pulley contact, improving grip and reducing slippage for consistent power transmission and enhanced drive system efficiency.
Ideal for routine maintenance or replacement of worn belts, the Dayco 5040323 helps restore OEM-level performance, supports proper accessory operation, and contributes to long service life for both the belt and connected components.
Key Features
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Reduced Slippage: Maintains consistent traction and belt tracking.
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Long Service Life: Built for durability in demanding automotive environments.
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4-Rib Construction: Ensures stable operation across accessory drive systems.
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Poly Rib Design: Provides excellent pulley contact and efficient power transfer.
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Heat Resistant EPDM Rubber: Resists cracking, hardening, and premature wear.
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Reinforced Tensile Cords: Helps prevent stretching and maintain proper tension.
- OEM Standard Quality: Manufactured to Dayco specifications for reliable fit and performance.
Specifications
- Brand: Dayco
- Belt Size: 4PK0820
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Rib Count: 4 Ribs
- Part Number: 5040323
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Effective Length: 820 mm
- Type: Poly Rib / V-Ribbed Serpentine Belt
- Material: EPDM Rubber with Reinforced Cords
- Application: Automotive Accessory Drive System