Wehrli 100731 T4 Turbo Housing Heat Blanket | Universal

Features:

• Fits all T4 flange turbo housings
• Retains heat within the turbo housing
• Lowers under-hood temperatures significantly
• Rated to over 2500°F direct heat
• Durable high-temp exterior shell material
• Stainless steel rivet fasteners for secure fit
• Compatible with S300 and S400 turbos
• Works with Garrett, Holset, and Precision turbos
• Improves thermal efficiency and turbo response
• Easy to install on most turbo setups
• Handmade in the USA
• Ideal for performance diesel builds

Keep The Heat Where It Belongs And Performance Where You Want It

If you’re looking to keep your turbocharged engine running cooler and more efficiently, the Wehrli 100731 T4 Turbo Housing Heat Blanket is one of the smartest upgrades you can make. This handmade blanket is designed to trap heat inside the turbo, helping reduce under-hood temps and keeping your engine bay safer and cleaner. That means cooler intake temps, better throttle response, and more consistent power during long pulls or heavy towing. Whether you’re chasing horsepower on the street or just want to protect nearby components, this blanket does the job without the bulk or hassle. Installation is quick and easy, and the fit is dialed in for T4 flange turbos like the S300, S400, Garrett, Holset, or Precision. It’s built tough too, with a high-temperature exterior shell and stainless steel rivets that won’t give up under pressure. If you're after a cleaner engine bay and more efficient turbo performance, this is a small part with a big payoff.

Designed To Shield Components And Stabilize Turbo Temperatures

The Wehrli 100731 T4 Turbo Housing Heat Blanket is built for demanding applications where thermal control is essential. Internally rated for direct exposure to over 2500°F, this blanket wraps tightly around any T4 flange-style turbocharger including popular options like the S300, S400, Garrett, Holset, and Precision turbos. It features a durable high-temp exterior shell paired with stainless steel rivet fasteners, ensuring long-term durability and secure fitment even in the harshest environments. By containing radiant heat at the turbo housing, this blanket lowers ambient engine bay temperatures and helps protect hoses, wires, and other components from prolonged exposure. It also improves turbocharger response by maintaining hotter, denser exhaust gases within the turbine. Perfect for everything from diesel performance builds to towing applications, the blanket is compatible with platforms such as 2001–2016 GM 6.6L Duramax and 1994–2018 Dodge Ram 5.9L and 6.7L Cummins engines. Each blanket is handmade in the USA and designed for both performance and reliability in mind. It's a must-have for enthusiasts serious about protecting their turbo system and maximizing efficiency.

Fits: Universal

Notes:

• Designed for T4 flange-style exhaust housings
• Fits S300, S400, Garrett, Holset, and Precision turbos
• Internally rated to withstand over 2500°F direct heat
• Reduces under-hood temperatures for improved safety and performance
• Helps protect nearby components from heat damage
• Improves turbo response by retaining heat inside the housing
• Quick and easy installation with stainless steel rivet fasteners
• Features a durable high-temp exterior shell material
• Handmade in the USA with attention to detail and quality
• Compatible with 2001–2016 GM 6.6L Duramax engines
• Also fits 1994–2018 Dodge Ram 5.9L and 6.7L Cummins applications