One Piece Thermostat Housing Kit For 2006-2010 LBZ / LMM Duramax

HSP One Piece Thermostat Housing Kit for 2006-2010 Chevrolet / GMC Duramax LBZ / LMM

What's Included

• 1x One Piece Thermostat Housing (HSP-IN-716)
• 1x Radiator Hose Tube w/ Logo (HSP-IN-229)
• 1x Upper Fan Shroud Bracket (HSP-IN-714)
• 1x Oil Fill Neck Tube (HSP-IN-717)
• 1x Thermostat Housing O-Ring (RFB-719-RFAB)
• 4x M8 x 1.25 x 25mm Socket Cap Bolt (RFB-909-RFAB)
• 4x M6 x 1.0 x 18mm Socket Cap Bolt (RFB-913-RFAB)
• 18" of 3/8" Heater Hose (RFB-395-RFAB)
• 2x 1/2" Worm Gear Clamp (RFB-405-RFAB)
• 4x 1-3/4" Worm Gear Clamp (RFB-408-RFAB)
• 1x 1.75" 90° Boot – Rubber (RFB-433-RFAB)
• 1x 1.75" x 3" Straight Boot – Rubber (RFB-437-RFAB)
• 1x Metric Bonded Seal 14mm (RFB-455-RFAB)
• 1x M14 x 1.5 to 3/8" Hose Barb (RFB-692-RFAB)
• 1x M14 x 1.5 Metric Port Plug (RFB-969-RFAB)

Why Choose the HSP Thermostat Housing Kit?

Factory coolant routing on LBZ and LMM trucks severely limits access for performance modifications, especially with upgraded valley turbos and dual CP3 systems. The HSP Forward Facing Thermostat Housing Kit removes these barriers, making your build simpler.

What Makes It Different?

Unlike the stock unit, this kit eliminates the coolant hose crossing over the driver-side valve cover, opening up room for turbo systems, custom fab work, and fuel components. It's CNC-machined, powder coated for durability, and designed to improve clearance and serviceability while cleaning up the engine bay.

Overview

• CNC-machined aluminum thermostat upper housing
• Increased clearance for aftermarket turbochargers
• Improved access to driver-side fuel system components
• Powder-coated hard tube for a cleaner engine bay
• Allows fitment of dual CP3 pump kits
• Multiple color and custom finish options available

Fitment

• LBZ: 2006-2007 (VIN Code 2 or D)
• LMM: 2007.5-2010 (VIN Code 6)

How do people know the VIN code?
Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck.

Our Warranty

HSP No BS Limited Lifetime Warranty

At HSP, we believe in our products and stand behind every one that leaves our facility. For years, we've gone above and beyond for customers even without a formal policy. With the HSP No BS Limited Lifetime Warranty, that same commitment is now set in stone.

For more information about our Lifetime, No BS Warranty, click HERE.