545RFE Transmission Cooler, new and ready to install. Fits the 545RFE. Ships fast from the USA.
Despite the name on this listing, what ships is a complete genuine Mopar fluid and filter service kit for the 45RFE and 545RFE, built around the 2003-2011 Dodge Ram 1500 with the 4.7L or 5.7L engine. It contains Mopar filters, a tube of Mopar RTV sealant for the pan, and seven quarts of Mopar ATF+4. The kit lists Mopar numbers 5013470AE, 5179267AD, 5010884AD and 68218057AC (the ATF+4, seven bottles). It is aimed at owners who are due for a service, just replaced cooler lines or a solenoid pack, or are chasing a shift complaint and want to rule out dirty fluid and a clogged filter first.
The RFE is an electronically controlled transmission that adapts its clutch fill times and line pressure as it learns. It depends on clean fluid at the correct level: the pump pulls through the pan filter, line pressure is held in a closed loop by the pressure control solenoid and sensor, and the cooler return circuit feeds lube to the geartrain. A loaded filter or aerated, burned fluid shows up first as late or harsh shifts and pressure faults. Fresh ATF+4 and new filters restore the baseline before you start condemning hard parts.
Check level and condition hot first. Clutch material or a heavy layer of metal on the pan magnet means the service will not cure the problem, and you should read our 45RFE and 545RFE problems and fixes guide before spending money. If you have line pressure codes, check them against our pressure control solenoid and line pressure guide. A delay in engagement after the truck sits can come from the cooler return filter itself: Chrysler TSB 21-016-05 says cooler return filters with part number 04799662AB can let the torque converter drain back, and calls for a replacement filter without the AB suffix on listed 2003-2006 Ram trucks and other models.
The kit is listed for 2003-2011 Ram 1500 trucks with the 4.7L or 5.7L engine and the 45RFE or 545RFE. Filter design differs by year and by two-wheel versus four-wheel drive on these trucks, so compare the pan filter and the filter on the side of the case with the photos, or send us your year and VIN and we will confirm it. Chrysler's Ram body builder fluid sheet lists a service fill of 5.2 liters on 4x2 and 6.2 liters on 4x4 trucks, so the seven quarts here cover a pan service with a little left for top-off. Parts for the rest of the transmission are on the 45RFE and 545RFE parts page.
Drain and drop the pan, remove the old filter and clean the magnet and pan. Clean the sealing surfaces fully, lay a continuous bead of the Mopar RTV on the pan rail and torque the pan bolts to the factory 105 in-lb. Replace the cooler return filter with the one supplied. Refill with ATF+4 only, run the engine, cycle through the gears, and check the level hot on the dipstick. If the pan is already dented or leaking, an aluminum 545RFE pan with a drain plug makes the next service easier, and the cooler line guide covers what to check when you have the case fittings open.
| Fits | 545RFE |
| Part type | Transmission Cooler |
| Condition | New |
| Brand | Mopar |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is a genuine Mopar fluid and filter service kit for the 45RFE and 545RFE: filters, RTV sealant and seven quarts of ATF+4. The listing name is misleading; the photo shows the actual contents.
It is listed for 2003-2011 Ram 1500 with the 4.7L or 5.7L and the 45RFE or 545RFE. Filter style varies by year and drivetrain, so compare the photos to your old filters or send us your VIN.
For a pan and filter service, yes. Chrysler lists a service fill of 5.2 liters on 4x2 and 6.2 liters on 4x4. A full rebuild or dry unit takes much more.
Chrysler specifies Mopar ATF+4 for the 45RFE and 545RFE. Using the specified fluid keeps the friction characteristics the controller adapts to.
It fixes problems caused by old fluid or a clogged filter. If the pan shows clutch material or you have hard codes, the service is a first step, not the cure.
Chrysler requires Quick Learn after solenoid pack, valve body, clutch or transmission replacement, not after a basic fluid service. If you are doing one of those jobs at the same time, run it.
