The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM 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. Options available for single (P/N WCF100420) or twin CP3 setups (P/N WCF100424) in your choice of custom powder coat finishes. - - Replaces the following GM Part Numbers: 19330105, 15792824, 25833204, 97361881. IF YOU HAVE A DUAL WCFAB DUAL CP3 KIT OR A DUAL ALTERNATOR TRUCK, USE KIT NUMBER WCF100424.. Wehrli Custom Fab Thermostat Housing Kit, 2006-2010 Duramax LBZ/LMM, Semi-Gloss Black. Required for race cover style or SXE turbochargers being mounted in the valley. Wehrli 06-10 Duramax LBZ/LMM Thermostat Housing Kit - Semi-Gloss Black. Thermostat Housing Kit, 2006-2010 Duramax LBZ/LMM, Semi-Gloss Black. Includes coolant pipe, silicone boots, and t-bolt clamps. CNC Machined Billet Aluminum Thermostat Upper Housing. Compatible with factory VGT style turbochargers. Tstat Housing Kit 06-10 Dmax Semi Gl Blk. NOT COMPATIBLE WITH 2006-2007 GMC SIERRA. Engine Coolant Thermostat Housing. Custom Powder Coat Finish. Tstat H Kt 06-10 SGB

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