Dynomite Diesel J01572 Injector Connector Tube – 5.9L Cummins (2003-2007)

Genuine 5.9L connector tube with O-ring for 2003-2007 Dodge Ram 2500/3500 5.9L Common Rail Cummins engines. Sold individually.

Why This Tube Matters

Cummins and Chrysler have superseded the original 5.9L connector tube part numbers to the 6.7L version. The problem? The 6.7L tubes have a higher likelihood of leaking when used in a 5.9L cylinder head.

Dynomite Diesel continues to offer the correct actual 5.9L tube so you get a reliable, leak-free seal during injector installation. For builds staying under approximately 1,000 RWHP, these proven 5.9L tubes are the preferred choice—no meaningful performance gain has been observed from switching to the 6.7L design in this power range.

Key Features

• True 5.9L design (not a re-purposed 6.7L tube)
• Includes O-ring
• Direct OEM-style replacement
• Sold individually
• 3-year warranty through Dynomite Diesel

Fitment: 2003–2007 Dodge/Ram 5.9L Cummins Common Rail

Replace these tubes any time you service or upgrade injectors. Reusing old tubes is one of the most common causes of hard starts, rough idle, and high-pressure fuel leaks.