6R80 Transmission Cooler 2011, used and ready to install. Fits the 6R80. Ships fast from the USA.
This listing is for owners of a 2011 Ford with the 6R80 six-speed who are dealing with a weeping cooler, a rusted-through steel line or a core that took a rock and now drips ATF on the driveway. It is a used, factory-original transmission cooler pulled with its steel supply and return lines still attached, as shown in the photo. Buying the cooler and the line run together saves you from mating a new core to old, corroded tube ends, which is where many cooler leaks actually start on salt-belt trucks.
The 6R80 sends hot fluid out of the case, forward through the steel lines to a liquid-to-air cooler, and back into the transmission where it feeds the lube circuit for the planetary sets, bushings and clutch packs. Most of that heat comes from the torque converter while it is unlocked: launching with a load, creeping in traffic, or pulling a grade before the converter clutch applies. If the cooler or its lines leak, the 6R80 loses fluid it cannot afford to lose, because this unit has no dipstick and owners rarely notice a low level until the shifts change. If the core is blocked, the fluid runs hotter, oxidizes sooner and starts to varnish the valve body.
The 2011 model year matters here. GEARS Magazine notes that 2011 was a revision year for the 6R80, including the addition of a one-way clutch, and the F-150 moved to a new engine lineup that year. Plumbing and cooler packages followed those changes, so a 2011 assembly is not automatically the same as an earlier or later one.
Clean the cooler tanks, both quick-connect fittings and the length of each steel line, then idle the truck warm and look for fresh wetness. Run a hand along the lines where they are clipped to the frame; that is where corrosion hides. Check the level at the pan fill plug with the engine running at operating temperature. If your complaint is a harsh shift, a sudden downshift to first, or a start in fifth gear rather than a leak or heat, the cooler is not the cause. Those are lead frame and speed sensor faults covered by Ford recalls and service bulletins, and our 6R80 common problems and fixes guide lays out which codes and build dates apply. The F-150 common problems guide covers the truck-specific side.
This assembly is listed for 2011 6R80 applications only. In 2011 the 6R80 was used in the F-150, Expedition, Navigator and Mustang, and each body uses a different cooler and line layout. The long line run shown in the photo has to match the routing on your vehicle, so compare the bends, the bracket locations and the fittings at both ends with your original before ordering, or send us your year and VIN and we will check it. Because this is a used part, expect normal surface wear on the tubing and fins; flush it before installation. The rest of our range for this transmission is on the 6R80 parts collection page.
| Fits | 6R80 2011 |
| Part type | Transmission Cooler |
| Condition | Used |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The assembly shown in the photo is the cooler with its steel lines still attached. Compare the routing to your own lines before ordering.
Each 2011 6R80 vehicle uses its own cooler and line layout. Send us your year and VIN, or compare the photo with your original, and we will confirm fitment before it ships.
Yes, as long as it is flushed first. Back-flush the core and lines with cooler flush, blow them dry, and inspect the fittings. A used factory part keeps the original fit and connections.
Mercon LV. Ford lists Mercon LV for the 6R80 and warns against supplemental additives. Set the level at the check plug with the engine running at operating temperature.
Probably not. Harsh shifts and sudden downshifts on the 6R80 are usually lead frame, solenoid or valve body issues. Diagnose those first; a cooler fixes leaks and heat.
