Thermal Zero High Temperature Insulation Blanket – Cummins 4BT Turbo Manifold

Maximize heat management and performance with the Thermal Zero High Temperature Insulation Blanket, engineered specifically for the Cummins 4BT turbo manifold. Proudly made in the USA, this original design delivers industry-leading thermal protection, built to perform under the most extreme conditions.

This Cummins 4BT turbo manifold blanket was designed to closely fit the aftermarket Steed Speed and similar manifolds as well as modified 12 valve 5.9L manifolds with a center mount turbo outlet/inlet.

Crafted with a ½” thick high-density ceramic insulation core, this blanket is rated to withstand direct contact temperatures up to 2500°F, significantly reducing under-hood temperatures and improving turbo efficiency. The outer layer features high-temperature black silicone-impregnated fiberglass jacketing, providing an additional barrier against radiant heat, while maintaining durability and resistance to harsh environmental conditions.

Installation is secure and lasting thanks to stainless steel capstan rivets, ensuring a tight fit to the manifold that holds up to heat cycling and vibration. Whether you’re pushing your 4BT in a rugged off-road build or a street-driven diesel conversion, this insulation blanket is built to perform.

Key Features:

• Designed specifically for aftermarket and modified 12 valve 5.9L Cummins 4BT turbo manifolds

• ½” high-density ceramic insulation rated to 2500°F

• Black silicone-impregnated fiberglass outer layer for heat and abrasion resistance

• Stainless steel capstan rivets for secure attachment

• Original design – proudly made in the USA

Take control of your thermal performance with Thermal Zero – where performance meets protection.