Engines and Components Engines, Blocks and Components

HSP

Billet Forward-Facing Thermostat Housing Kit

$437.00

SKU: 040-HSP

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The HSP Diesel 040-HSP is a billet forward-facing thermostat housing kit designed for 2001-2005 Chevrolet and GMC Duramax LB7 and LLY trucks. This kit replaces the factory coolant hose that crosses over the driver side valve cover, providing more room for aftermarket turbo systems and fuel components. It is specifically intended for use with aftermarket chargers.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHSP
Part Number040-HSP
CategoryEngines and Components

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy