2017-2024 Duramax Upgraded Belt Tensioner (DMAX-UBT-1724)

Replace the factory plastic pulley that fails around 50K miles with this billet aluminum tensioner. Features a made-in-USA billet 6061-T6 pulley for superior durability and reliability, preventing costly engine damage.

Part Number: DMAX-UBT-1724

Replaces Part#:

• GM 12673657

• Billet 6061-T6 Aluminum Pulley for superior durability
• Direct replacement with no modifications needed
• Prevents costly damage from factory pulley failure
• Fully assembled with billet pulley pre-installed
• Patent pending design

Direct replacement, no modifications needed. Tensioner bolt torque specification: 43 lb-ft.

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