Fuel Rail Plug

Features:

• Replaces factory fuel pressure relief valve
• Helps eliminate low rail pressure codes
• Solves P0087 and P1093 trouble codes
• Prevents fuel pressure drop at wide open throttle
• Maintains consistent fuel pressure under load
• Improves fuel system reliability and performance
• Easy, direct replacement installation
• Ideal for performance or tuned Duramax engines

Say Goodbye to Low Rail Pressure Issues

If your Duramax has been throwing frustrating low rail pressure codes like P0087 or P1093, you’re not alone. These codes can rob your truck of performance, especially when you’re asking for everything it’s got under wide open throttle. The Industrial 631601 Fuel Rail Plug is a simple but effective fix designed to replace the factory fuel pressure relief valve. By blocking off the relief valve, this plug keeps your fuel system sealed tight, eliminating pressure drops right when you need maximum performance the most. It’s a smart solution for tuned or modified trucks that demand reliable, consistent fuel delivery under heavy load or aggressive driving conditions.

Easy Installation With Reliable Results

Installing this fuel rail plug is a quick, direct swap that doesn’t require any special tools or complicated tuning adjustments. Once installed, it helps maintain stable rail pressure throughout your entire powerband, giving you the confidence to lean on your truck without second-guessing your fuel system. Whether you’re towing, racing, or just running a little extra horsepower through a tuner, this plug helps ensure your injectors get the pressure they need to perform their best. It’s an affordable, effective upgrade that solves a common problem and keeps your Duramax running strong when it matters most.

Fits: 2004.5, 2005, 2006, 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax