Fuel Rail Plug Valve M20x1.5 Race for Chevy/GMC Duramax 6.6L 05-10, Dodge Cummins 6.7L

Upgrade your diesel performance with the Fuel Rail Plug Valve M20x1.5 Race, designed for Chevy/GMC Duramax 6.6L models from 2005 to 2010 and Dodge Ram/Cummins 6.7L from 2007.5 to 2012. CNC machined from durable stainless steel, this race-grade plug replaces the stock pressure relief valve to maintain steady fuel rail pressure under high-load conditions. The result is improved throttle response, consistent power delivery, and a reduction in fuel-pressure related trouble codes during demanding driving or performance tuning.

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Benefits & Tips

• Maintain stable fuel rail pressure during heavy engine loads to unlock maximum output and more predictable power delivery.
• Reduce the risk of low fuel rail pressure DTC codes caused by insufficient relief valve spring pressure, especially in tuned or high-boost setups.
• Easy to install with a precision stainless steel build that resists corrosion and wear over time, ideal for performance-minded enthusiasts.

Product specifications

• Model Name: JT16SS
• Material: Stainless Steel
• Thread Size: M20x1.5
• Compatible Vehicles: Chevy/GMC 6.6L Duramax (2005–2010); Dodge Ram 6.7L Cummins (2007.5–2012)
• Features: CNC machined, easy to install, replaces stock pressure relief valve, prevents fuel from returning by the Pressure Relief Valve, eliminates low fuel pressure rail DTC codes, enables maximum engine output
• Item Weight: 70 g

Package includes:

• 1 x Plug

Warnings/Reminders

• Professional installation is recommended. Ensure the engine is completely depressurized and the fuel system is powered down before work.
• Verify vehicle compatibility with the listed models before installation.
• Use appropriate safety precautions and tools during installation to prevent fuel exposure.