Description

2001-2016 GM 6.6 Duramax Diesel Lower Thermostat Bypass O-Ring

GM part number 94011603 is the O-ring that goes onto the lower side of the thermostat bypass tube between the thermostat housing and the water pump on 2001-2016 GM trucks with a 6.6L Duramax diesel engine.

This is the O-ring that goes onto the lower side of the thermostat bypass tube between the thermostat housing and the water pump on the 6.6L Duramax diesel engine.

If we do not have this part in stock, or it shows on back order, don’t worry. Huckstorf Diesel receives shipments from our suppliers daily. We also have the ability to get parts drop-shipped directly to you from the closest warehouse or the manufacturer. We are also able to source scarce products nationwide and globally quickly. Let us help you find those hard to find parts.

Find all your diesel performance, repair, and upgrade needs here, online or in person at Huckstorf Diesel’s sales, installation, and repair center located in Franklin / Milwaukee, Wisconsin USA.