PPE Coolant Bypass Tube - Water Pump to Thermostat Housing (2001-2005 GM 6.6L Duramax) - (119000600
Overview
Upgrade the reliability of your 2001-2005 GM 6.6L Duramax cooling system with the PPE Coolant Bypass Tube. Designed as a direct replacement for the factory mild-steel tube, this fully polished 304 stainless steel version eliminates the corrosion issues that commonly lead to coolant contamination and premature leaks.
Premium Construction
PPE engineers this bypass tube from high-grade 304 stainless steel to ensure long-term durability and resistance to rust. The tube end is CNC-machined for a precise fit with the factory water pump and thermostat housing, maintaining OEM-level alignment and sealing performance.
Enhanced Sealing Performance
The kit includes two Viton O-rings, offering superior heat and chemical resistance compared to the factory O-rings, which are known to harden and lose compression over time. This upgrade helps prevent coolant leaks and ensures consistent sealing under demanding conditions.
Why Upgrade?
The OEM mild-steel tube is prone to rusting internally and externally, which can introduce debris into the cooling system and compromise long-term reliability. PPE's stainless steel bypass tube eliminates these issues, providing a clean, corrosion-free coolant path and dependable performance for the life of your Duramax engine.
Key Features
- Fully polished 304 stainless steel for maximum corrosion resistance
- CNC-machined tube end for precise OEM-style fitment
- Includes two Viton O-rings for improved sealing and longevity
- Direct replacement for GM 97371074
- Compatible with factory water pump and thermostat housing
Application
- 2005 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 3500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 2500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 3500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 2500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
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