Stop coolant leaks for good with the Forged Diesel Billet Coolant Block-Off Plate — a direct-fit, heavy-duty replacement for the factory rear engine coolant cover.

Forged Diesel parts are made with the highest standards to offer the best in quality and affordability.

The OEM coolant cover is notorious for cracking and leaking over time. This billet aluminum block-off plate is machined thicker than stock and features an integrated O-ring seal that eliminates the need for a separate gasket — delivering a leak-free, permanent fix that outlasts the factory part.

Direct-fit replacement — no modifications required. Hardware included for easy installation.

For 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 GM 6.6L Duramax LB7 LLY LBZ LMM LML L5P

Replaces OEM part #97941204, FPE-DMAX-CBOP

Hardware included for easy installation