Wehrli 01-05 Duramax LB7/LLY Thermostat Housing Kit - WCFab Red

SKU: WCFWCF100405-RED

Engine Coolant Thermostat Housing

WCF Thermostat Housing Kit...

Wehrli

Wehrli 01-05 Duramax LB7/LLY Thermostat Housing Kit - WCFab Red

SKU: WCFWCF100405-RED

Engine Coolant Thermostat Housing

WCF Thermostat Housing Kit...

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2001-2005 LB7/LLY Duramax replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as well as the coolant return pipe. By changing the coolant routing to an upwards and forward layout from the thermostat, this kit improves access to driver side fuel system components, adds room for larger aftermarket turbochargers, and updates engine bay appearance. Compatible with Single and Dual CP3 Pump setups. Finished in your choice of custom powder coat colors.

Part Type

Engine Coolant Thermostat Housing

Data: v4.2 - Upd: 2026-10-14 22:46:28

Features

CNC Machined Billet Aluminum Thermostat Upper Housing
Compatible with factory VGT style turbochargers
Custom Two Stage Powder Coating
Includes coolant pipe, silicone boots, and t-bolt clamps
Made in USA
Replaces the following GM Part numbers:15792832,15198345
Required for race cover style or SXE turbochargers being mounted in the valley

Specifications

Reference Information

Brand Name/s	Wehrli
StreetFX SKU	wcfWCF100405-RED
SFX Item ID	4256432
Supplier Item Code	4256432
Manufacturer SKU	WCF100405-RED
Manufacturer UPC	N/A
Alternative References	LB7/LLY