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Durable Cooling System Solutions

Upgrade your GM Duramax 6.6L cooling system with the Fleece Performance Billet Coolant Block Off Plate. Engineered for maximum durability and a precise seal, this block-off plate is an essential component for those performing cooling system modifications or engine maintenance on 2001-2017 Duramax engines. Machined from high-grade billet aluminum, this plate offers superior strength compared to factory components, ensuring it won't warp or leak under pressure.

Engineered for Durability

• Precision-machined billet aluminum construction for long-lasting performance.
• Direct fit for 2001-2017 GM Duramax 6.6L engines.
• Provides a secure, leak-free seal for coolant passages.
• Ideal for custom cooling setups or removing unnecessary components.
• Resistant to corrosion and extreme thermal cycling.

When modifying your Duramax, reliability should never be compromised. Our billet block-off plate provides the peace of mind that your cooling system remains sealed and efficient, no matter how hard you push your truck. Whether you are building a dedicated tow rig or a high-performance street truck, this component is a must-have for your engine bay. Find premium engine components like this at GGCRACING.