Product Description
The BD DIESEL 1050070 5.9L Cummins Fuel Rail Plug is a must-have upgrade for 2003–2007 Dodge Ram 2500/3500 trucks equipped with the 5.9L Cummins common rail engine. This rail plug replaces the factory fuel pressure relief valve to help maintain consistent rail pressure under load, reduce pressure drop during acceleration, and improve starting performance—especially on trucks with tuning, modified fueling, or higher horsepower setups.
The factory relief valve can begin to leak or open early, causing inconsistent rail pressure and reduced fueling performance. By replacing it with a solid rail plug, you keep pressure where it belongs for smoother operation and improved throttle response. Installation is straightforward and can typically be completed in about 30 minutes using basic hand tools.
Fitment
- 2003–2007 Dodge Ram 2500 / 3500
- 5.9L Cummins Common Rail Diesel
Key Features & Benefits
- Replaces the factory fuel pressure relief valve with a solid plug
- Helps maintain consistent common rail pressure
- Improves starting and stabilizes fueling under load
- Ideal for tuned trucks and higher horsepower applications
- Simple installation with basic tools
Cross-Reference & Compatible BD Diesel Products (BD DIESEL ONLY)
Want to support rail pressure stability and protect your CP3/injectors? Pair this rail plug with other BD Diesel fuel system components on cppdiesel.com. (Links below will be added only when verified as live and working BD Diesel product pages.)
What does a fuel rail plug do?
It replaces the factory fuel pressure relief valve with a solid plug to help prevent rail pressure loss and stabilize fuel delivery—especially under load.
Will this improve performance?
It can improve throttle response and consistency by preventing rail pressure drop caused by a leaking or opening relief valve. It is especially helpful on tuned or higher horsepower trucks.
How long does installation take?
Typical install time is about 30 minutes with basic tools.
Specifications for BD DIESEL PRODUCTS 1050070
| Specification | Details |
|---|---|
| Brand | BD Diesel |
| Part Number | 1050070 |
| UPC | Not Found |
| GTIN | Not Found |
| Shipping Info | Ships ground; small package item |
| Prop 65 | California Proposition 65 Warning |
