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SKU #: SD-CBO-DMAX-01 MPN #: SD-CBO-DMAX-01

Sinister Diesel Coolant Block Off Plate 14-24 GM 6.6L Duramax

$69.99
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Description
The Sinister Diesel Coolant Block Off Plate for GM Duramax 6.6L is a simple yet highly effective solution designed to improve cooling system performance and reliability. This precision-engineered block off plate eliminates unnecessary coolant flow paths that can contribute to overheating, reduce coolant pressure, and create weak points in the cooling system. By sealing these passages, the block off plate helps increase coolant velocity through the critical components of your engine’s cooling system, resulting in more consistent temperatures and improved overall efficiency. Built with high-quality materials and engineered for a direct bolt-on fit, this block off plate installs easily without modifications and works with factory or aftermarket cooling components. Whether you're building for towing, heavy duty use, or everyday reliability, installing a coolant block off plate is a smart upgrade for anyone looking to optimize cooling performance on their Duramax 6.6L. Whether you're towing heavy loads, operating in high temperatures, or building a performance Duramax 6.6L, the Sinister Diesel Coolant Block Off Plate is a low-cost upgrade that delivers improved thermal management and peace of mind on every mile.

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The Sinister Diesel Coolant Block Off Plate for GM Duramax 6.6L is a simple yet highly effective solution designed to improve cooling system performance and reliability. This precision-engineered block off plate eliminates unnecessary coolant flow paths that can contribute to overheating, reduce coolant pressure, and create weak points in the cooling system. By sealing these passages, the block off plate helps increase coolant velocity through the critical components of your engine’s cooling system, resulting in more consistent temperatures and improved overall efficiency.

Built with high-quality materials and engineered for a direct bolt-on fit, this block off plate installs easily without modifications and works with factory or aftermarket cooling components. Whether you're building for towing, heavy duty use, or everyday reliability, installing a coolant block off plate is a smart upgrade for anyone looking to optimize cooling performance on their Duramax 6.6L.

Whether you're towing heavy loads, operating in high temperatures, or building a performance Duramax 6.6L, the Sinister Diesel Coolant Block Off Plate is a low-cost upgrade that delivers improved thermal management and peace of mind on every mile.

Vehicle Fitment
2014-2024 GM 6.6L Duramax
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

FEATURES & BENEFITS:

  • Improved Cooling Efficiency: Reduces unwanted coolant flow paths, increasing coolant focus through the radiator and charge air cooler for more consistent engine temperatures.
  • Enhanced Coolant Pressure: Helps maintain proper coolant pressure for improved heat transfer and reduced chances of overheating under load.
  • Direct Bolt-On Installation: Precision CNC-cut design matches factory mounting points and seals without cutting, drilling, or modification.
  • Durable Construction: Made from high-quality material for long-lasting performance in demanding environments.
  • Works with Factory or Aftermarket Systems: Compatible with stock radiators, coolers, and most aftermarket cooling upgrades.

KIT CONTENTS:

  • Coolant Block Off Plate
  • Sealing Gasket
  • Mounting Hardware
About Sinister Diesel

Sinister stands for everything diesel and they have made a name for themselves manufacturing some of the highest quality diesel engine components in the industry. The Sinister Diesel brand was born out of an idea from the founders while working on one of their own trucks. What if they started their own diesel performance business manufacturing and selling high quality air intake, fuel, and engine components? That idea transpired into the Sinisterl Diesel we know today. In order to make sure that when you popped the hood, you could easily distinguish a œSinister branded part from other companies, nearly everything they manufacture is coated in their trademarked œSinister Blue. Whether you drive a Cummins, Powerstroke, or Duramax, they can outfit your entire truck with cold air intakes, fuel tank sumps, oil filtration, regulated fuel return kits, and so much more. If you're looking for quality performance parts at a great price, look no further than Sinister!