Heavy-gauge finned steel deep cooling pan with a temperature sender port for Dodge A518/A618 46RE, 47RE and 48RE transmissions to run cooler under load.
If your Ram's transmission temperature climbs every time you hook up a trailer, pull a long grade or idle through summer traffic, the Derale 14210 is the bolt-on that attacks the problem at the pan. It replaces the shallow stamped pan on the Chrysler A518 (46RH, 46RE), A618 (47RH, 47RE, 48RE) and the older A727 TorqueFlite, the family behind Ram pickups with the 5.2L and 5.9L V8 and the 5.9L Cummins. It holds more fluid than the factory pan and runs outside air through the bottom of the sump to pull heat out of the ATF before it reaches the clutches.
These transmissions send fluid to the cooler only after it leaves the torque converter, and the factory pan holds a small reserve. When the converter is working hard under load, that small volume heats quickly and stays hot. The Derale pan helps in two ways. First, it is deeper: Derale lists the extra capacity as 2 quarts 3 ounces over the stock A518 pan and 5 quarts 16 ounces over the A727 pan, so more fluid shares the heat. Second, brazed airway tubes with internal turbulators pass crosswise through the lower section of the pan. Air moving under the truck flows through those tubes and carries heat away, and Derale rates the pan to drop fluid temperature by up to 50 degrees F. Each pan is pressure tested for leaks before it ships.
Derale lists the pan at 15 5/16 inches long, 11 3/4 inches wide and 4 inches tall, with tube depth of 3 5/8 inches. The drain plug adds 1/4 inch. The steel is heavy gauge with a two-stage black finish, and the kit includes a neoprene gasket, a strong magnetic drain plug (1/2-20 thread) with a reusable rubber and steel washer, and a 1/8 inch NPT bung in the side of the pan with a plug, so you can add a pan temperature sender later.
A cooling pan does not fix restricted cooler flow, so check that before you buy. Heat on the RE family is very often caused by a plugged cooler, a kinked line or a stuck drainback valve, and that kills converter lockup and lube flow even with a big pan. Run the flow and bypass checks in our 46RE cooler line replacement guide and the heat section of 46RE common problems and fixes. If the fluid is already burnt and 4th slips, read 46RE 3-4 clutch failure first; a cooler pan will not save a clutch pack that is already slipping.
The 14210 fits the A518 (46RH, 46RE), A618 (47RH, 47RE, 48RE) and A727 case pan pattern. That covers most Dodge Ram 1500, 2500 and 3500 trucks, Durango and Dakota models with these transmissions. Because the pan sits about 4 inches deep plus the drain plug, measure the clearance under your stock pan to the crossmember, exhaust and skid plates before ordering, especially on Jeep, lowered or heavily loaded applications. If you are not sure which transmission is in your truck, send us the year and VIN and we will check it. Browse every part we carry for this family on the 46RE parts page.
| Fitment | Dodge A518 (46RH, 46RE) and A618 (47RH, 47RE, 48RE) |
| Material | Heavy-gauge stamped steel with cooling fins |
| Finish | Two-stage heat-dissipating black coating |
| Sender Port | 1/8 in. NPT temperature sender port |
| Capacity | Deeper than stock, holds additional ATF |
| Weight | Approx. 10 lb |
| Part Number | Derale 14210 |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. It fits the A618 case pattern used by the 47RH, 47RE and 48RE, as well as the A518 46RH/46RE and the A727. Measure your crossmember and exhaust clearance first because the pan is about 4 inches deep plus the drain plug.
Derale lists 2 quarts 3 ounces more than the stock A518 pan and 5 quarts 16 ounces more than the A727 pan. Always set the final level with the dipstick, hot, in Neutral.
Not for normal street and towing use. Derale states its 14010 filter extender must be used in extreme off-road applications where steep angles can uncover the filter inlet.
Yes. The pan has a 1/8 inch NPT bung in the side and ships with a plug in it. Remove the plug and install a 1/8 NPT temperature sender to read sump temperature.
Only if the cause is load and heat volume. If the cooler, lines or drainback valve are restricted, fix the flow first, because a deep pan cannot replace converter cooling flow.
ATF+4. Do not mix in a generic multi-vehicle fluid on these Chrysler units.
