Supply Line Fuel Rail 3957079 5086870AA Diesel High Pressure CP3 Pump Tube
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Supply Line Fuel Rail for Dodge Ram 1500
This supply line fuel rail tube, referenced as 3957079 and 5086870AA, is a direct replacement high pressure CP3 pump tube designed to deliver fuel from the pump to the rail. It serves as a critical component in the diesel fuel system, ensuring proper fuel pressure and delivery for compatible engines.
Overview
This supply line fuel rail is a high pressure CP3 pump tube that connects the injection pump to the fuel rail, maintaining the necessary fuel flow and pressure for diesel combustion. It is engineered as a direct fit replacement for specific diesel engines, providing a reliable and durable connection. This tube is for vehicles like the Dodge Ram 1500, ensuring the fuel system operates correctly.
Built For Performance
- Precision-formed steel construction for high-pressure durability
- Factory-matching fittings for a secure, leak-free seal
- Designed to withstand extreme fuel pressures from the CP3 pump
- Direct replacement for OEM part numbers 3957079 and 5086870AA
- Corrosion-resistant coating for long service life
Fits These Machines
- for Dodge Ram 1500 (2003-2004)
On-The-Job Use
- Used in diesel fuel systems to route high-pressure fuel
- Ideal for replacement during CP3 pump or fuel rail service
- Commonly installed in pickups and trucks with a 5.9L Cummins diesel
- Supports towing and hauling applications by maintaining fuel delivery
Specs At A Glance
| Part Number(s) | 3957079, 5086870AA |
| Type | High Pressure CP3 Pump Tube |
| Material | Steel |
| Fitment | for Dodge Ram 1500 2003-2004 |
Good To Know
Q: Will this fuel rail tube work with a stock CP3 pump? A: Yes, this tube is designed as a direct OEM replacement, so it works with the factory CP3 pump and fuel rail system. It is built to meet the same specifications as the original part.
Q: Is this a genuine Mopar part? A: This is an aftermarket replacement part, not an original Mopar product. It is manufactured to match OEM specifications and fitment.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.