Overview

Pacific Performance Engineering Coolant Housing Block-Off Gaskets

Pacific Performance Engineering coolant housing block-off gaskets are durable stainless steel seals that prevent coolant leaks between the engine's block-off plate and the flywheel housing cover on GM 6.6L Duramax diesel engines.

* Purpose:
-- Stops leaks: Sits between the flywheel housing cover and the coolant block-off plate to keep engine coolant from leaking out
-- Handles removals: Used when you remove factory coolant crossover pipes, EGR components, or bypass tubes during engine service or performance upgrades
-- Replaces worn seals: Factory gaskets harden, crack, or fail over time, causing coolant seepage near the rear of the engine
* Material and design:
-- Stainless steel: Made from precision-cut 301 stainless steel for high strength
-- Corrosion-resistant: Features a protective coating to resist rust and last longer in harsh underhood conditions
* Vehicle fit:
-- Engine type: Designed for 2001 through 2026 GM 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM, LML, and L5P models)

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