Product Description
The CPP HEAVY DUTY 48RE TRANSMISSION OEM REPLACEMENT LINE KIT FOR 03-07 DODGE RAM DIESEL is a complete replacement solution for worn, leaking, or rusted factory transmission cooler lines on 2003-2007 Dodge Ram Cummins trucks equipped with the 48RE automatic transmission.
This heavy-duty line kit replaces the original hard line system with durable braided hose and high-quality fittings designed to withstand heat, pressure, and vibration common in diesel trucks used for towing, work, and daily driving.
Each kit includes the transmission-to-heat-exchanger line, heat-exchanger-to-cooler line, and cooler-to-transmission return line along with the necessary fittings and adapters to complete installation. Whether you are fixing a leak, replacing corroded factory lines, or refreshing the transmission cooling system during maintenance, this kit provides a dependable OEM-style replacement with improved durability.
Current Price: $279.99
Why Choose the CPP 48RE Transmission Line Kit?
- Direct OEM-style replacement for factory 48RE transmission cooler lines
- Designed for 2003-2007 Dodge Ram Cummins trucks
- Heavy-duty braided hose construction for long service life
- Complete kit with lines, fittings, and adapters included
- Helps eliminate leaks caused by rusted or aging factory lines
- Great upgrade for towing, work trucks, and high-mileage diesel applications
- Available in stainless braided or black braided hose options
Fitment
Fits:
- 2003 Dodge Ram 2500 / 3500 with 5.9L Cummins and 48RE transmission
- 2004 Dodge Ram 2500 / 3500 with 5.9L Cummins and 48RE transmission
- 2005 Dodge Ram 2500 / 3500 with 5.9L Cummins and 48RE transmission
- 2006 Dodge Ram 2500 / 3500 with 5.9L Cummins and 48RE transmission
- 2007 Dodge Ram 2500 / 3500 with 5.9L Cummins and 48RE transmission
Application Notes:
- For trucks equipped with the 48RE automatic transmission only
- Designed to replace the factory transmission cooler plumbing
- Optional threaded compression fitting adapters are available for customers who prefer a cleaner installation
What’s Included
- Transmission to heat exchanger line
- Heat exchanger to cooler line
- Cooler to transmission return line
- Required fittings and adapters
Cross Reference / Related CPP Products
- CPP HEAVY DUTY 47RE TRANSMISSION OEM REPLACEMENT LINE KIT FOR 96-02 DODGE RAM DIESEL
- CPP DIESEL TRANSMISSION LINE KIT BLACK BRAIDED BYPASS HEAT EXCHANGER 1994-2007 DODGE CUMMINS
Specifications for CPP CPP-48RE-LINEKIT
| Brand | CPP Diesel |
| Part Number | CPP-48RE-LINEKIT |
| Product Type | Transmission OEM Replacement Line Kit |
| Transmission Fitment | 48RE |
| Vehicle Fitment | 2003-2007 Dodge Ram with 5.9L Cummins |
| Included Components | Three transmission cooler lines, fittings, and adapters |
| Hose Options | Stainless Braided or Black Braided |
| Installation Style | OEM Replacement |
| Shipping | Calculated at checkout |
FAQ
Will this kit fit all 2003-2007 Cummins trucks?
This kit fits Dodge Ram trucks equipped with the 48RE automatic transmission. It is not intended for manual transmission trucks.
What comes with the CPP-48RE-LINEKIT?
The kit includes three replacement transmission lines along with the fittings and adapters needed to complete installation.
Is this a direct replacement for factory cooler lines?
Yes. This kit is designed to replace the OEM transmission cooler line system used on 48RE equipped Dodge Ram Cummins trucks.
Are installation fittings included?
Yes. The kit includes the required fittings and adapters to complete installation.
Why replace factory transmission cooler lines?
Factory hard lines can rust, crack, and leak over time. Replacing them with a heavy-duty braided kit helps restore proper transmission cooling and prevent fluid leaks.
Can this kit be used with aftermarket transmission coolers?
In many cases yes, but compatibility depends on the cooler fitting style. Always confirm fitting sizes before installation.
