Product Description
Maximum fuel. Maximum control. The INDUSTRIAL INJECTION King Cobra Competition Injector (503KINGCOBRA0308) is purpose-built for the 2003–2004 Dodge/Ram 5.9L Cummins early common-rail platform. Calibrated for extreme fueling with clean delivery and DLC-coated internals, this is a dedicated competition-use injector for serious race builds.
Fitment
- 2003–2004 Dodge/Ram 2500 & 3500 — 5.9L Cummins 24V (Early CR, 305 HP)
- Direct replacement style; sold individually for cylinder-specific builds
Highlights
- Highest-flowing competition injector in the Industrial Injection Cobra line
- DLC-coated internals for durability at high rail pressure
- Balanced & matched for smooth idle and crisp fueling under load
- Built for race fuel and big air (compound/single S400+ recommended)
What’s Included
- (1) Assembled King Cobra competition injector (503KINGCOBRA0308)
- New sealing washers
Recommended Parts (CPP Internal Links)
- BD Diesel 1050155 Injector Install Kit (03–05 5.9L CR) — lines, feed tubes & gaskets for a clean install.
- S&S CP3-CU-SS SuperSport CP3 (03–18) — stable rail pressure for stout street/strip builds.
- S&S CP3-CU-10-HS 10mm High-Speed CP3 (03–18) — higher output for dedicated race setups.
- Cummins 5264181 Connector Tube Nut (03–07) — replace to ensure proper sealing.
- Shop All 5.9L Cummins Injectors & Sets
- Industrial Injection Race 6 (192% Over) — 03–04 5.9L
Helpful Notes
- Competition-use only. Not legal for sale or use on any pollution-controlled vehicle. Customer is responsible for compliance.
- Use new feed/connector tubes and lines during install to avoid contamination and sealing issues.
- Requires sufficient lift pump supply, high-pressure pump (CP3) capacity, appropriate turbo(s), and custom tuning.
FAQ
Is this injector street legal?No. The King Cobra is for dedicated competition use only and is not emissions compliant for on-road vehicles.
Do I need new feed tubes and lines?Yes—reusing old tubes/lines risks leaks and tip damage. We recommend the BD 1050155 kit above or new OE-equivalent hardware.
What pump/turbo setup should I run?At minimum, a high-output CP3 (e.g., S&S SuperSport or 10mm) and a high-flow turbo system (single S400+ or compounds) with custom tuning.
Sold as a set or single?Sold individually so you can size cylinders or replace singles; order six for a complete set.
| Specifications for INDUSTRIAL INJECTION 503KINGCOBRA0308 | |
|---|---|
| Brand | Industrial Injection |
| Part Number | 503KINGCOBRA0308 |
| GTIN | Not published by manufacturer |
| UPC | Not published by manufacturer |
| Engine Compatibility | 2003–2004 Dodge Ram 2500/3500 5.9L Cummins (common-rail) |
| Configuration | King Cobra Competition Injector (built-to-order size; sold individually) |
| Country of Origin | USA |
| Core Charge | Typically applies (approx. $75–$80; vendor-specific) |
| Shipping Weight | Not specified (single injector; small parcel) |
| Package Dimensions | Not specified (boxed injector) |
| Shipping Method | Ground / Small 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 |
