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Cummins · Fuel System
3943775
In stock · ships from Knoxville
This is a high‑pressure fuel injection line (commonly called an injector supply tube) for the #6 cylinder on a 5.9‑liter 24‑valve Cummins diesel engine equipped with a VP44 injection pump.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
Ram
Ram
Designed for VP44 injection pump systems; this is the #6 cylinder line (lines #1‑5 are separate part numbers).
Part data verified against 4 catalog sources
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It carries metered fuel from the injection pump to the #6 injector at precise pressure and timing. Technicians replace this line when it becomes cracked, corroded, or begins to leak, which can cause hard starting, fuel odor, or loss of power. It is a direct‑fit OEM replacement for 1998.5‑2002 Dodge Ram 2500 and 3500 trucks.
Part Number: 3943775
CUMMINNS # 6 FUEL LINE
Vendor: MHC Kenworth
Dealer: KP Services Crossville
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