Product Description
Make serious power on your 2003-2004 5.9L Cummins with the Industrial Injection R5 (PN 0986435503SE-R5) remanufactured common-rail injector. This 170% over unit uses EDM/extrude-honed internals, balanced for high-fuel delivery and reliability in competition applications.
Fitment
- 2003-2004 Dodge Ram 2500/3500 - 5.9L Cummins ISB (24-valve common rail, 305 HP)
- Direct replacement for OE Bosch base PN 0986435503 (03-04)
Why It's Awesome
- 170% over flow (R5) with ~350 HP capability when the fuel system and turbo support it
- Balanced nozzles for consistent cylinder-to-cylinder fueling
- Remanufactured & calibrated to OE-level processes
What You Need To Run It
- Dual CP3s strongly recommended to maintain commanded rail pressure at this flow level
- Custom tuning required to match injector size & turbo airflow
- Use new connector/feed tubes and a fresh valve cover gasket on install
Core & Warranty
- $75 core charge per injector (refundable per supplier policy)
- 1-year, unlimited-mile warranty from Industrial Injection
Recommended Parts (Internal Links)
- Industrial Injection 237402 Dual CP3 Kit - 2003-2007 5.9L
- CP3 Injection Pumps - 2003-2007 Cummins
- Cummins Connector/Feed Tubes
- Cummins 3954324 Valve Cover Gasket - 2003-2005
- 03-07 Cummins 5.9L Fuel Injectors (Category)
Installation Notes
- Always code injectors and verify no return/excessive leakage.
- Use only Bosch/Cummins OE-spec connector tubes for sealing at the higher rail pressures common with performance setups.
FAQ
Will my stock CP3 support these R5 (170% over) injectors?No. At this size you should plan on a dual CP3 kit and a healthy lift pump to maintain commanded rail pressure.
Are these legal for on-road use?No. These are for dedicated competition use only.
Do I need new connector/feed tubes?Yes-new tubes help prevent sealing issues and protect warranty. See our connector/feed tube options.
What tuning is required?Custom ECM calibration matched to injector size and turbo airflow. Expect significant smoke without proper tuning and air.
What's the core policy?There is a $75 core charge per injector. Return eligible cores within the stated window for refund. See product page for details.
| Specifications for INDUSTRIAL INJECTION 0986435503SE-R5 | |
|---|---|
| Brand | Industrial Injection |
| Part Number | 0986435503SE-R5 |
| GTIN | 840256901894 |
| UPC | 840256901894 |
| Engine Compatibility | 2003–2004 Dodge Ram 2500/3500 5.9L Cummins 24-Valve Common Rail |
| Configuration | Reman Performance Injector, Race 5 (≈170% over, ~65 LPM) |
| Country of Origin | USA |
| Core Charge | $75.00 per injector (refundable per supplier policy) |
| Shipping Weight | 3.0 lb (each) |
| Package Dimensions | 5" × 3" × 11" (each) |
| Shipping Method | Ground (parcel) |
| Prop 65 Warning | This product can expose you to chemicals including lead and chromium, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn more. |
