Merchant Automotive Billet Coolant Block-Off Plate (2001-2019 6.6L Duramax)
The Merchant Automotive 10089 Billet Coolant Block-Off Plate eliminates the common leaking issue in your 2001-2019 GM 6.6L Duramax. The factory coolant block-off plate has a cast design with a gasket. Over time, this plate commonly begins to leak. Merchant Automotive has designed this billet block-off plate with a built-in o-ring seal for a leak-free installation.
- Billet Construction
- Replaces Factory Block-Off Plate
- Installs Using Factory Bolts & Hardware