2004-2010 GM 6.6L Duramax Thermostat Housing Cover LLY LBZ LMM

2001-2023 GM 6.6L Duramax 304 Stainless Steel Coolant Tube Pump to Oil Cooler PPE Diesel

1.75 Inch Coolant Drain Tube Stainless Steel W/ 1/4 Inchnpt Bung PPE Diesel

2001-2004 GM 6.6L Duramax Thermostat Housing Cover Raw PPE Diesel

2001-2010 GM 6.6L Duramax Coolant Bypass Tube Water Pump to Thermostat Housing

Engine Coolant Thermostat Housing PPE Diesel

2001-2007 GM 6.6L Duramax Engine Coolant Thermostat Housing

2001-2004 GM 6.6L Duramax Thermostat Housing Cover Polished PPE Diesel

Coolant Bypass Tube - Water Pump to Thermostat Housing 2011-2016 GM 6.6L Duramax LML Pacific Performance Engineering

Coolant Reroute Tube Duramax OEM LLY/LBZ style Polished