Frictions, steels, gaskets, seals and a bonded piston set to fully overhaul the Toyota U240E/U241E transaxle in 2.4L Camry, RAV4 and Highlander.
A high-mileage four-cylinder Camry, RAV4 or Highlander that slips from second to third, hesitates going into Drive, or flares under load usually has the Toyota/Aisin U241E four-speed transaxle under the hood. This master rebuild kit covers that unit and its U240E sibling, and unlike most master kits it includes a set of rubber-bonded clutch pistons along with the frictions, steels, gaskets, seals and sealing rings. That matters because on a tired unit the piston lip seals are often hard and flattened, and new frictions alone will not hold if the pistons leak apply pressure.
The U240E and U241E are four-speed automatic transaxles that share the same internal ratios (3.943 first, 2.197 second, 1.413 third, 1.020 fourth) and differ mainly in final drive and application. Each gear is applied by hydraulic pressure pushing a piston against a clutch pack. Over time the friction material wears, the steels glaze, and the bonded rubber on the pistons hardens, so pressure bleeds past the piston and the pack slips even when the friction plates still have material left. Replacing frictions, steels, pistons and every seal at once restores full apply on every pack instead of leaving the weakest piston in place.
Check fluid level and condition first; a low level alone can cause a flare. Scan for stored codes, because a failed shift solenoid can mimic a slip. If the fluid is burnt and one gear slips consistently, the clutch packs and pistons are the likely cause. Our guide on the difference between a shift flare and a slip explains how to tell them apart, and if the complaint is only harsh or late shifts, start with the Aisin harsh and delayed shift guide before tearing the unit down.
This kit is listed for the U240E and U241E behind the 2.4L four-cylinder: Toyota Camry and Camry Solara 2.4L, RAV4 2.4L, Highlander 2.4L 2001-2007, Scion tC 2005-2010 and Scion xB 2008-2014. Published application data lists the U241E as a front-wheel-drive unit; all-wheel-drive RAV4 and Highlander models generally use the U140F, so confirm the code on your transmission tag before ordering. V6 versions of these cars use a different transmission and are not covered. If you are unsure, send us your year and VIN. More Toyota and Aisin parts are on our Aisin collection page, and if you do not need pistons, the U240E master rebuild kit without pistons covers the same unit.
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Published application data lists the U241E as front-wheel drive; AWD RAV4 and Highlander models generally use the U140F. Check the transmission tag or send us your VIN before ordering.
The rubber on the original pistons hardens with age and leaks apply pressure. New frictions behind a leaking piston will still slip, so replacing the pistons closes that gap.
Friction plates, steel plates, a bonded piston set, gaskets, seals and sealing rings for the U240E and U241E.
No. V6 versions use a different transmission. This kit is for the 2.4L four-cylinder units only.
Use the fluid listed on your vehicle's label or in the owner's manual. Many of these cars call for Toyota WS, but earlier models may specify a different Toyota fluid.
