2003+ 5.9 & 6.7 Cummins Exhaust Manifold Blanket

Built for Common Rail Cummins Engines

Designed specifically for 2003-up 5.9L and 6.7L Common Rail Cummins engines, this exhaust manifold blanket fits both factory and aftermarket cast exhaust manifolds. By retaining heat within the exhaust manifold, it helps reduce radiant engine bay temperatures while supporting improved turbo response.

Whether your truck is built for towing, daily driving, or competition, this blanket is designed to fit properly and perform for years of service.

Why Choose This Manifold Blanket?

• Helps reduce underhood temperatures
• Supports improved turbo response by retaining exhaust heat
• Helps lower intake air temperatures by reducing radiant heat
• Helps reduce exhaust gas temperatures under sustained engine load
• Helps protect nearby wiring, hoses, and engine components
• Straightforward installation
• Designed specifically for Cummins stock and aftermarket cast manifolds—not a universal fit

Fitment

Fits:

• 2003–2007 5.9L Common Rail Cummins
• 2007.5+ 6.7L Cummins
• Factory cast exhaust manifolds
• Most aftermarket cast exhaust manifolds

If you're unsure whether your manifold is compatible, feel free to contact us before ordering.

Construction

Turbo Performance Products manifold blankets are built in the USA using a durable three-layer construction. A ½-inch silica insulation core is sandwiched between silica cloth outer layers for long-lasting thermal performance.

• Three-layer construction
• Silica cloth inner and outer layers
• ½-inch silica insulation core
• Continuous temperature rating of 1,800°F
• Intermittent temperature capability up to 3,000°F
• Remains soft and flexible even after years of service

What's Included

• Cummins exhaust manifold blanket
• Stainless steel installation wire

Available Colors

Available in multiple colors to match your build.

See the Color Gallery for current material options.

Why Turbo Performance Products?

Since 2008, Turbo Performance Products has been designing vehicle-specific heat management solutions for diesel enthusiasts and professionals alike. With more than 25,000 blankets built in the USA, every product reflects years of real-world experience, proven designs, and knowledgeable customer support.