Dayco Poly-V Belt 4PK0990

Advanced Serpentine Belt Technology

The Dayco Poly-V Belt 4PK0990 represents the most innovative advancement in serpentine belt design in over 25 years. As the manufacturer of the first original equipment multi-ribbed v-ribbed belt, Dayco's commitment to automotive excellence and innovation remains unwavering.

Premium Construction

EPDM Compound Technology Constructed with aramid reinforced EPDM compounds that exceed Original Equipment (OE) specifications, this belt delivers exceptional performance and longevity.

Multi-Rib Design The multiple rib and flat design provides superior belt to pulley contact, reducing slippage compared to conventional V-belts. Multiple ribs eliminate the need for matching and allow controlled slippage in overload situations.

Key Performance Features

Robust Design: Guarantees resistance, reliability, low noise and extended service life
Specially Treated Cords: Resist stretching and ensure length stability throughout the belt's life
High Torque Capability: Materials engineered to handle high torque and power pulses from demanding drives
Grooved Profile: Provides flexural stress relief for increased flexibility in both normal and backside bending
Environmental Resistance: Less susceptible to dust and splash-induced slip

Advanced Manufacturing

Dayco's superior manufacturing technology utilizes rubber-impregnated fabric backing that maximizes load carrying capability while minimizing noise. The heavy duty construction provides additional integrity without sacrificing flexibility or belt-to-pulley compatibility.

Technical Specifications

Length: 39.66 inches (1007mm)
Top Width: 0.54 inches (13.7mm)
Rib Configuration: 4 ribs
Material: High-grade EPDM compound with aramid reinforcement
Industry Number: 4PK0990

Engineered for Demanding Conditions

This serpentine belt is engineered with high-grade EPDM compounds and built to resist heat and harsh under-hood environments. Through extensive laboratory and road mileage testing, this unique rib profile belt conforms to high mileage, worn or misaligned drives while helping eliminate noisy belt conditions.