Belt Tensioner 3976832 3937556 for Cummins 4BT 3.9 6BT 5.9 6CT C8.3L 6C 6CT 6CTA

Belt Tensioner for Cummins 4BT 3.9 and 6BT 5.9 Engines

Durable belt tensioner designed for Cummins 4BT 3.9, 6BT 5.9, and 6CT engines, ensuring optimal belt performance.

• Fits Cummins 4BT 3.9, 6BT 5.9, 6CT, C8.3L engines
• Maintains proper belt tension for engine efficiency
• High-quality aftermarket replacement, not OEM
• Easy to install with standard tools
• Improves engine reliability and reduces wear

Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

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