Fuel injectors are vital to how a diesel engine breathes and performs. On Cummins QSB 6.7L engines from 2011 to 2016, the fuel injector delivers precisely metered fuel into the combustion chamber at exactly the right moment, helping ensure efficient combustion, smooth running, and reliable power. The Cummins QSB 6.7L Fuel Injector OEM 5303101RX from Tamerx Diesel Parts is crafted to meet original equipment specifications, offering a dependable replacement for worn or failing injectors and helping restore proper engine performance.
• Delivers precise fuel metering to each combustion chamber, ensuring optimal fuel-to-air balance for efficient combustion and consistent power delivery
• Designed for Cummins QSB 6.7L engines (2011–2016) with exact fitment, proper spray pattern, and seamless integration with the factory fuel system
• Supports smoother engine operation by promoting even combustion across all cylinders, helping reduce rough idling, misfires, and uneven performance
• OEM-grade construction (5303101RX) providing dependable durability, accurate fuel delivery, and compatibility with original engine components
• Ideal for highway and heavy-duty use where reliable fuel injection and stable combustion help maintain performance under varied load conditions
Replacing a worn or malfunctioning fuel injector with the Cummins QSB 6.7L Fuel Injector OEM 5303101RX from Tamerx Diesel Parts helps restore precise fuel delivery and supports overall engine efficiency. Investing in a high-quality, OEM-matched injector ensures your engine maintains optimal combustion, smoother performance, and dependable operation across diverse driving conditions.

















































