This is an Engine 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.
