This is a Fan Belt for 4B3.9, 6B5.9, ISB and ISB3.9 Cummins Engines. Patented EPDM construction with distinct green overcord built specifically for more durability, superior flexibility, stability, and longer life on heavy-duty drives.
- Consistently outperforms all competitors.
- Heavy-duty construction resists cracking and wear, even at extreme temperatures.
- Oil and heat-resistant. Outperforms the competition on the most troublesome drives.
- Unique undercord notch pattern offers increased flexibility for smaller diameter pulleys.
