PPE Polished Stainless Coolant Bypass Tube - Water Pump to Thermostat Housing (2011-2016 GM 6.6L Duramax LML) - (119000830
Overview
The PPE Polished Stainless Coolant Bypass Tube replaces the factory tube that routes coolant from the water pump to the thermostat housing on 2011-2016 GM 6.6L Duramax LML engines. Built from corrosion-resistant stainless steel, this upgraded tube eliminates the rust issues commonly found in the OEM mild steel version.
Polished 304 Stainless Steel Construction
PPE manufactures this tube from polished 304 stainless steel, providing excellent resistance to rust, coolant contamination, and long-term wear. The polished finish adds durability and a clean, high-quality appearance under the hood.
Hydroformed for Precise Fitment
Each tube is hydroformed to ensure exact factory-style fitment and smooth coolant flow. This process creates consistent bends and dimensions for a perfect alignment with the water pump and thermostat housing.
Includes Upper and Lower O-Rings
The bypass tube comes with both upper and lower O-rings, offering reliable sealing and improved longevity compared to aging factory O-rings that tend to harden over time.
Why Upgrade?
The OEM mild steel tube is known to rust internally, which can contaminate the cooling system and eventually lead to leaks. PPE's stainless steel version eliminates these weak points and provides a durable, long-term solution designed to work seamlessly with the factory water pump.
Key Features
- Polished 304 stainless steel construction
- Hydroformed for precise, factory-style fitment
- Includes upper and lower O-rings
- Direct replacement for GM P/N 12633704
- Prevents rust-related coolant contamination and leaks
- Fits 2011-2016 GM 6.6L Duramax LML engines
Application
- 2016 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2016 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2016 GMC Savana 4500 6.6L V8 Turbo Diesel (Duramax)
- 2016 GMC Savana 3500 6.6L V8 Turbo Diesel (Duramax)
- 2016 GMC Savana 2500 6.6L V8 Turbo Diesel (Duramax)
- 2016 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2016 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2016 Chevrolet Express 4500 6.6L V8 Turbo Diesel (Duramax)
- 2016 Chevrolet Express 2500 6.6L V8 Turbo Diesel (Duramax)
- 2015 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 GMC Savana 4500 6.6L V8 Turbo Diesel (Duramax)
- 2015 GMC Savana 3500 6.6L V8 Turbo Diesel (Duramax)
- 2015 GMC Savana 2500 6.6L V8 Turbo Diesel (Duramax)
- 2015 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 Chevrolet Express 4500 6.6L V8 Turbo Diesel (Duramax)
- 2015 Chevrolet Express 3500 6.6L V8 Turbo Diesel (Duramax)
- 2015 Chevrolet Express 2500 6.6L V8 Turbo Diesel (Duramax)
- 2014 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2014 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2014 GMC Savana 4500 6.6L V8 Turbo Diesel (Duramax)
- 2014 GMC Savana 3500 6.6L V8 Turbo Diesel (Duramax)
- 2014 GMC Savana 2500 6.6L V8 Turbo Diesel (Duramax)
- 2014 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2014 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2014 Chevrolet Express 4500 6.6L V8 Turbo Diesel (Duramax)
- 2014 Chevrolet Express 3500 6.6L V8 Turbo Diesel (Duramax)
- 2014 Chevrolet Express 2500 6.6L V8 Turbo Diesel (Duramax)
- 2013 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2013 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2013 GMC Savana 4500 6.6L V8 Turbo Diesel (Duramax)
- 2013 GMC Savana 3500 6.6L V8 Turbo Diesel (Duramax)
- 2013 GMC Savana 2500 6.6L V8 Turbo Diesel (Duramax)
- 2013 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2013 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2013 Chevrolet Express 4500 6.6L V8 Turbo Diesel (Duramax)
- 2013 Chevrolet Express 3500 6.6L V8 Turbo Diesel (Duramax)
- 2013 Chevrolet Express 2500 6.6L V8 Turbo Diesel (Duramax)
- 2012 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2012 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2012 GMC Savana 4500 6.6L V8 Turbo Diesel (Duramax)
- 2012 GMC Savana 3500 6.6L V8 Turbo Diesel (Duramax)
- 2012 GMC Savana 2500 6.6L V8 Turbo Diesel (Duramax)
- 2012 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2012 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2012 Chevrolet Express 4500 6.6L V8 Turbo Diesel (Duramax)
- 2012 Chevrolet Express 3500 6.6L V8 Turbo Diesel (Duramax)
- 2012 Chevrolet Express 2500 6.6L V8 Turbo Diesel (Duramax)
- 2011 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2011 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2011 GMC Savana 4500 6.6L V8 Turbo Diesel (Duramax)
- 2011 GMC Savana 3500 6.6L V8 Turbo Diesel (Duramax)
- 2011 GMC Savana 2500 6.6L V8 Turbo Diesel (Duramax)
- 2011 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2011 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2011 Chevrolet Express 4500 6.6L V8 Turbo Diesel (Duramax)
- 2011 Chevrolet Express 3500 6.6L V8 Turbo Diesel (Duramax)
- 2011 Chevrolet Express 2500 6.6L V8 Turbo Diesel (Duramax)
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