Dayco Poly-V Belt 4PK1245
Dayco developed the first Polyrib or Multirib belt for the Ford Mustang in the USA in 1979, and today this belt continues to set the industry standard. The 4PK1245 Poly-V belt features a multiple rib and flat design that provides better belt to pulley contact for less slippage than conventional V-belts.
Key Features
- 4 Ribs: Provides optimal power transmission and eliminates the need for matching
- 1245mm Effective Length: Precisely engineered for specific vehicle applications
- Advanced Grooved Design: Provides flexural stress relief for increased flexibility in both normal and backside bending
- Environmental Resistance: Grooves render the belt less susceptible to environmental factors such as dust and splash induced slip
- Superior Manufacturing: Uses rubber impregnated fabric backing that maximizes load carrying capability and minimizes noise
- Controlled Slippage: Allows for controlled slippage in overload situations, such as when an A/C compressor engages
Technical Specifications
- Part Number: 4PK1245
- Belt Type: Poly-V (Polyrib/Multirib)
- Number of Ribs: 4
- Effective Length: 1245mm (49 inches)
- Application: Vehicle-specific automotive serpentine belt
Quality & Performance
Dayco’s superior manufacturing technology incorporates specially formulated cord treatments that ensure length and belt stability for the life of the belt. The rubber impregnated fabric backing maximizes load carrying capability while minimizing operational noise commonly associated with competitor belts.