Braided stainless cooler line set that replaces the rusted factory steel lines on 1996-2002 Dodge Ram 2500 and 3500 5.9L trucks with the 47RE automatic.
If your 1996-2002 Dodge Ram 2500 or 3500 with the 5.9L and 47RE is dripping red fluid near the frame rail, smelling of hot ATF after a tow, or has lines so scaled you are afraid to touch them, this is the replacement set. It swaps the factory steel transmission cooler lines for three braided stainless lines and the fittings to adapt them to the case and cooler, with no cutting or bending of hard line.
Hot fluid leaves the torque converter, runs through the cooler in the radiator and the auxiliary cooler, and comes back to the transmission, where it also feeds lubrication to the rear of the unit. On the 46RE and 47RE, cooler flow and converter flow are tied together, so anything that restricts the cooler circuit changes converter clutch apply and raises fluid temperature. A leaking line is worse: on a truck that tows, a line that lets go can empty the pan in a few miles, and a 47RE run low on fluid under load burns its overdrive and direct clutches fast.
Clean the lines and look again after a drive; pinholes and crimp leaks show up quickly when the fluid is hot. If there is no leak but the transmission runs hot or sets lockup codes, check flow before replacing anything. Disconnect the return line, run it into a container and measure what comes out in a set time, or blow 40 psi of shop air through the cooler and lines to find a blockage. Restriction in the cooler or lines is the most common cause of converter flow problems on this family. Our 47RE common problems guide and the Ram 3500 Cummins problem guide explain both tests.
Made for the 47RE in 1996-2002 Dodge Ram 2500 and 3500 trucks with the 5.9L engine. It also fits 1994-1995 47RH trucks, but those need an additional 3-way 8AN tee (male and female ends), which is not included, so the line can still supply the external transmission sensor. If your truck has an aftermarket cooler, a deep pan or a non-stock line route, measure before ordering, or send us the year and VIN. The full range of parts for this unit is on the 47RE parts page.
No instructions come with the kit, so photograph the old routing first. Drain what you can, remove the old lines and factory fittings, and thread in the new adapters with a thread sealant suited to transmission fluid. Pipe threads are tapered: snug them gradually, because overtightening can crack the aluminum case. Keep every line clear of the exhaust and secure it at the original clip points. Refill with ATF+4, run the engine through each range, check the level hot and look at every joint for seepage.
Replacing lines because of overheating? Check the converter lockup circuit with the 1996-99 overdrive and lockup solenoid, and if the fluid is dark and burnt, plan on a 47RE overhaul kit.
| Transmission | Chrysler 47RE (also 47RH with added tee fitting) |
| Vehicles | 1996-2002 Dodge Ram 2500, 3500 with 5.9L |
| Hose construction | Rubber hose, stainless steel braid |
| Includes | 3 cooler lines, 6 adapter fittings |
| Weight | 3.4 lb |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The kit is listed for 1996-2002 47RE trucks with the 5.9L. Send us the year and VIN if you are unsure which transmission your truck has.
Yes, but you also need a 3-way 8AN tee fitting with male and female ends, which is not included, so the line can still feed the external transmission sensor.
No. The lines and adapters bolt in where the factory lines were. You only remove the old lines and factory fittings.
Yes. On the 46RE and 47RE, cooler flow and converter flow are linked, and a restricted cooler or line is a common cause of converter clutch slip codes. Flow-test the circuit before replacing the converter.
ATF+4. Check the level with the engine running and the fluid hot, then recheck after a test drive.
