NEW 5.9 ISB Cummins Serpentine Belt Tensioner | 3924026, 3921524, 3934816 | 4B 3.9L / ISB 5.9L Cummins 

New 5.9L ISB & 4B Cummins Serpentine Belt Tensioner. Keep your Cummins engine running cool and efficiently with this high-quality replacement serpentine belt tensioner. Designed to fit 4B 3.9L and 6B 5.9L engines, this tensioner is built to last and maintain proper belt tension, preventing overheating and potential engine damage. This carries a one year warranty.

Features:

• Precise compatibility: Ensures a perfect fit for your 4B 3.9L / 6B  5.9L Cummins engine.
• Quality assured: Manufactured in an ISO 9001:2015 certified facility for consistent quality and performance.
• Built to last: Constructed from durable materials to withstand the demands of heavy-duty use.
• Peace of mind: Comes with a guarantee for fit and function, ensuring your satisfaction.

This reliable serpentine belt tensioner is a crucial component for your Cummins engine's cooling system, providing optimal performance and preventing costly repairs.