Fleece Performance Return Fuel Pressure Test Port — Fits 2011-2016 GM 2500/3500 LML Duramax

SKU: FPEFPE-FPTP-GM-1116

About Fleece Performance Fleece Performance engineers high-quality automotive parts and ...Read more

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

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Part Numbers
Sizing & Fit

About Fleece Performance

Fleece Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Fleece Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Fuel System Diagnostics

The Fleece Performance Return Fuel Pressure Test Port is an essential diagnostic tool for owners of 2011-2016 GM 2500/3500 trucks equipped with the LML Duramax engine. Designed to simplify the process of monitoring fuel return pressures, this kit allows you to quickly tap into your fuel system for accurate readings, helping you identify potential issues before they lead to costly component failure.

Key Features and Benefits

  • Direct fitment for 2011-2016 GM LML Duramax 6.6L engines
  • High-quality construction ensures long-lasting durability
  • Simplifies fuel pressure testing for faster diagnostics
  • Engineered for a leak-free, secure connection
  • Essential for troubleshooting fuel system performance

Whether you are a professional technician or a DIY enthusiast, this test port makes maintaining your Duramax fuel system significantly easier. By providing a dedicated access point, you can monitor return pressures to ensure your CP4 pump and injectors are operating within factory specifications. This simple yet effective upgrade is a must-have for any high-performance build or routine maintenance schedule. Trust GGCRACING to provide the high-quality components you need to keep your truck running at its peak performance level.

About Fleece Performance

Fleece Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Fleece Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Fuel System Diagnostics

The Fleece Performance Return Fuel Pressure Test Port is an essential diagnostic tool for owners of 2011-2016 GM 2500/3500 trucks equipped with the LML Duramax engine. Designed to simplify the process of monitoring fuel return pressures, this kit allows you to quickly tap into your fuel system for accurate readings, helping you identify potential issues before they lead to costly component failure.

Key Features and Benefits

  • Direct fitment for 2011-2016 GM LML Duramax 6.6L engines
  • High-quality construction ensures long-lasting durability
  • Simplifies fuel pressure testing for faster diagnostics
  • Engineered for a leak-free, secure connection
  • Essential for troubleshooting fuel system performance

Whether you are a professional technician or a DIY enthusiast, this test port makes maintaining your Duramax fuel system significantly easier. By providing a dedicated access point, you can monitor return pressures to ensure your CP4 pump and injectors are operating within factory specifications. This simple yet effective upgrade is a must-have for any high-performance build or routine maintenance schedule. Trust GGCRACING to provide the high-quality components you need to keep your truck running at its peak performance level.

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