Fleece Performance 01-17 GM Duramax Billet Coolant Block Off Plate

When you're working on your 2001-2017 GM Duramax truck, like a Silverado 2500 HD or GMC Sierra 3500, and need to bypass the factory coolant filter housing, this billet coolant block off plate from Fleece Performance is what you'll want. It's designed to cleanly seal off the port where the factory coolant filter assembly used to be, ensuring a leak-free setup. This is a common modification when upgrading to an aftermarket coolant filtration system or when removing the factory unit altogether.

This block off plate is machined from solid billet aluminum, which gives it a strong and durable construction that's built to last. The precise machining ensures it fits right into place, making installation straightforward. It's a well-built component that addresses a specific need in the Duramax engine bay, providing a reliable solution for sealing off the coolant passage.