Product Description

CUMMINS 3943773 OEM #5 FUEL INJECTION LINE – RAM 5.9L 24V (1998.5–2002)

Genuine Cummins OEM fuel injector line #5 — direct-fit for 1998.5-2002 Dodge Ram 2500/3500 5.9L ISB 24V (VP44). This hard supply tube delivers precise, high-pressure diesel fuel to the #5 cylinder injector, restoring factory-spec fuel delivery when cracked, leaking or worn lines compromise engine performance. OEM geometry ensures correct alignment, sealing and fuel pressure for reliable operation even under heavy load. Ideal when replacing a damaged line or refreshing fuel delivery components during engine rebuild or maintenance.

Fitment / Application

• 1998.5–2002 Dodge Ram 2500/3500 with 5.9L ISB 24V (VP44) engine
• Cylinder position: #5 injector line

Cross Reference / Related Injector Lines

• CUMMINS 3943765 OEM #1 Fuel Injection Line
• CUMMINS 3943767 OEM #2 Fuel Injection Line
• CUMMINS 3943769 OEM #3 Fuel Injection Line
• CUMMINS 3943771 OEM #4 Fuel Injection Line
• CUMMINS 3943775 OEM #6 Fuel Injection Line

FAQ

WILL THIS FIT MY 1998.5–2002 5.9L 24V RAM? Yes — this #5 injector line is a direct-fit OE replacement for 1998.5–2002 5.9L ISB 24V (VP44) Dodge Ram 2500/3500. Confirm your engine serial number (ESN) when possible for best accuracy.

WHICH CYLINDER IS THIS FOR? This is the fuel line for cylinder #5. Refer to “Cross Reference / Related Injector Lines” for the matching #1–#6 part numbers if replacing multiple lines.

IS THIS A GENUINE CUMMINS PART? Yes — this is an OEM part manufactured by Cummins, with proper geometry, material, and sealing to meet factory specifications.

DO I NEED ANYTHING ELSE TO INSTALL IT? When replacing, inspect or replace line clamps/retainers. If injectors or fittings show wear, consider replacing sealing washers or the full injector-line set for best results.

SHOULD I REPLACE ALL SIX LINES AT ONCE? If one line fails due to age, corrosion or cracking, replacing the entire set (#1–#6) is best practice to restore even wear and reliability and avoid future leaks.