A750E Master Rebuild Kit, new and ready to install. Fits the A750E. Ships fast from the USA.
When a Tacoma, 4Runner, Tundra, Sequoia, FJ Cruiser or Lexus GX 470 starts slipping between gears, smells burnt, or drops clutch material into the pan, a full overhaul is usually cheaper than a used transmission with unknown miles. This is a new aftermarket master rebuild kit for the Toyota A750E and A750F five-speed, built to the 2003-and-later design. Per the listing it contains the overhaul gasket and seal set (paper and rubber gaskets, metal clad seals, O-rings and sealing rings), a complete set of friction plates, bonded pistons and a new filter, under kit reference K8600CA.
The A750E is Aisin's rear-drive five-speed, with ratios of 3.52, 2.042, 1.40, 1.00 and 0.716 and a lockup converter, and the A750F is the same unit with a transfer case behind it. Every gear change depends on hydraulic pressure squeezing the right clutch pack through a sealed piston. Once the frictions are glazed or burnt and the piston seals harden, no amount of fluid service brings the shifts back. A master kit renews the wear surfaces and every seal in one job, so the unit leaves the bench with matched clearances instead of a mix of old and new parts. The bonded pistons matter here: a bonded piston has its lip seal molded on, so a hardened or torn seal is replaced along with the piston rather than being stretched over an old one.
Rule out cheaper causes first. TransGo documents that 2003-on A750 valve bodies wear the line pressure boost valve and bushing, and that the TCC relay and solenoid modulator bores wear too; any of these can produce soft shifts, flare and lockup codes on a transmission whose clutches are still usable. Test the solenoids, check line pressure, and read our walkthrough of Aisin slipping under load and the flare versus slip comparison. If the pan shows heavy friction debris or the unit slips in a fixed gear regardless of pressure, it needs the overhaul this kit is for.
The kit is listed for 2003-and-later A750E and A750F five-speed units, which covers the 2003-2009 4Runner V8 and 2005-on 4Runner V6, 2005-2015 Tacoma V6, 2005-2009 Tundra, 2004-2009 Sequoia, FJ Cruiser, GX 470 and LX 470. It does not fit the six-speed A760E, A760F or A761E, which share bolt patterns but not internals. The steels are not itemized in the contents, so plan to reuse yours if they are flat and free of heat marks. Confirm the transmission code on the vehicle or send us the year and VIN before ordering. Browse more A750 parts in the Aisin transmission collection.
| Fits | A750E |
| Part type | Master Rebuild Kit |
| Condition | New |
| Brand | OEM |
| Reference | A750F |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Per the listing: an overhaul kit with gaskets, metal clad seals, O-rings and seals, a full friction plate set, bonded pistons and a filter. Steel plates are not itemized, so measure and reuse your steels if they are flat and not heat-discolored.
No. It is for the five-speed A750E and A750F built from 2003 on. The A760E, A760F and A761E six-speeds use different internals and need their own kit.
Yes. The A750F is the four-wheel-drive version of the same transmission, and the kit is listed for both. Confirm your transmission code or send your year and VIN before ordering.
Check drums, bushings and the pump, flush the cooler, and correct the known valve body wear at the line pressure boost valve, TCC relay valve and solenoid modulator bores. Leaving those worn is a common reason new frictions burn again.
Toyota WS automatic transmission fluid. Do not mix in older Type T-IV fluid, and set the level with the fluid at operating temperature using the check plug.
