Product Description
CUMMINS 4935982 OEM FUEL INJECTION LINE (#2 OR #3) – ISB 6.7L (2007.5–2018)
Restore leak-free, high-pressure fuel delivery on your 6.7L Cummins with this genuine CUMMINS 4935982 injector fuel supply tube. Designed for cylinder positions #2 or #3 on 2007.5–2018 Ram 2500/3500 trucks and EPA13 ISB/QSB 6.7 applications, this OE tube maintains precise rail-to-injector sealing and long-term reliability.
Key Features
- Genuine Cummins high-pressure injector fuel supply tube (MPN: 4935982).
- Fits cylinder position #2 or #3 on 6.7L ISB common-rail engines.
- Engineered for EPA13 6.7L ISB/QSB platforms for accurate, consistent fuel delivery.
- OE flare seats and tube geometry resist vibration, heat cycling, and pressure fatigue.
- Direct bolt-on replacement—no modifications, trimming, or bending required.
- Best practice when installing new injectors: replace corresponding high-pressure lines at the same time.
Fitment Details
Automotive Applications:
- 2007.5–2018 Ram 2500 6.7L ISB (24V common-rail)
- 2007.5–2018 Ram 3500 6.7L ISB (24V common-rail)
Engine / Platform:
- Cummins 6.7L ISB (automotive common-rail)
- EPA13 ISB/QSB 6.7 variants – verify by ESN for industrial/off-highway applications
Position: Injector fuel supply tube for cylinder #2 or #3 (order quantity 2 if replacing both).
Cross-Reference & Related Cummins Parts
This tube is part of the complete 6.7L ISB common-rail line set. For a full OE refresh, pair 4935982 with the matching Cummins injector lines:
- CUMMINS 4935981 OEM #1 FUEL INJECTION LINE – ISB 6.7L (2007.5–2018)
- CUMMINS 4935974 OEM #4/#5 FUEL INJECTION LINE – ISB 6.7L (2007.5–2018)
- CUMMINS 4935976 OEM #6 FUEL INJECTOR LINE – ISB 6.7L (2007.5–2018)
Browse more genuine Cummins OEM service parts here: CUMMINS GENUINE PARTS AT CPP DIESEL .
What’s Included
- (1) Genuine Cummins injector fuel supply tube / fuel injection line – part number 4935982.
- Integrated flare nuts on both ends (no separate hardware required).
Install Notes
- Confirm correct cylinder position (#2 or #3) before installation.
- Do not bend, kink, or attempt to “massage” a mis-routed line—replace instead.
- Ensure both rail and injector seats are clean and free of debris before tightening.
- Tighten to factory torque specification and recheck after initial heat cycle.
- After install, prime the fuel system and perform a visual leak check at idle and under load.
Specifications for cummins 4935982
| Brand | Cummins |
| Part Number | 4935982 |
| SKU (CPP Diesel) | CUM4935982 |
| Engine Compatibility | 6.7L ISB (Ram 2500/3500 2007.5–2018); EPA13 ISB/QSB 6.7 variants (verify ESN) |
| Position | Cylinder #2 or #3 injector fuel supply tube |
| Application Type | High-pressure common-rail fuel injection line |
| GTIN | Not specified by manufacturer |
| UPC | Not specified by manufacturer |
| Shipping Weight | Approx. 0.38 lb (0.17 kg) |
| Package Dimensions | Approx. 6.0 in (L) x 4.0 in (W) x 4.0 in (H) |
| Cross Reference | Associated Cummins line set: 4935981 (#1), 4935974 (#4/#5), 4935976 (#6) |
| E-Codes / Emissions | EPA13 6.7L ISB/QSB (confirm by ESN and emission family) |
| Country of Origin | As stamped on part or packaging (varies by production batch) |
| Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
FAQ
WILL THIS FIT MY 2007.5–2018 6.7L CUMMINS RAM?Yes. CUMMINS 4935982 is the OEM high-pressure injector fuel supply tube for cylinder positions #2 or #3 on most 2007.5–2018 Ram 2500/3500 trucks equipped with the 6.7L ISB. Always confirm by VIN/ESN if you are unsure.
WHICH CYLINDERS DOES 4935982 COVER?
This tube is position-specific for cylinder #2 or #3. If you are replacing both cylinders, order quantity 2. For the rest of the engine, use:
- #1 cylinder: CUMMINS 4935981
- #4/#5 cylinders: CUMMINS 4935974
- #6 cylinder: CUMMINS 4935976
SHOULD I REPLACE LINES WHEN I REPLACE INJECTORS?
Yes. Best practice is to install new high-pressure lines any time injectors are replaced or a line shows signs of wear, scoring, or leakage. Reusing fatigued lines can lead to sealing issues, leaks, and rail-pressure problems on common-rail systems.
DO I NEED EXTRA SEALS OR WASHERS FOR THIS LINE?
No separate washers are used with this tube. The sealing happens at the machined flare seats and injector/rail interfaces. Inspect the seats on both the tube and mating components; if they are damaged, replace the affected part and always torque to Cummins specifications.
IS THIS A GENUINE CUMMINS OEM PART?
Yes. This is a genuine Cummins injector fuel supply tube, part number 4935982, sourced to maintain OEM quality, fitment, and durability on your 6.7L ISB engine.
