A750E Overhaul Kit 2002, new and ready to install. Fits the A750E. Ships fast from the USA.
Two-wheel-drive Tundra, Sequoia, 4Runner and Tacoma PreRunner trucks with the A750E five-speed tend to come in for the same reasons once the miles stack up: a leak that will not quit, a slow shift into gear on a cold morning, or a rebuild that needs every seal replaced at once. This A750E overhaul kit is labeled K86900CA for 2002-09 Toyota and Lexus A750E/F units, and the label specifies the version with molded pistons. It is catalogued from 2002, although the A750 itself reached North American trucks for the 2003 model year.
The A750E is the two-wheel-drive member of the Aisin A750 five-speed family, with a conventional tailhousing where the A750F carries a transfer case adapter. Each of its clutches and brakes is applied by a hydraulic piston, and the seal on that piston is what turns line pressure into clamping force. On older designs the piston and its rubber lips are separate parts; a molded piston has the rubber bonded to the piston itself. Bonded lips do not roll or pinch during installation the way loose lip seals can, and they replace heat-hardened rubber that no longer seals at low temperature. Along with the pistons, an overhaul kit supplies the gaskets, sealing rings and O-rings for the rest of the unit. Frictions and steels are not part of it.
Pull the pan before ordering. A clean magnet and normal-smelling fluid with a cold engagement delay point at seals and pistons, and this kit is the fix. Burnt fluid and friction debris mean the packs are glazed and the unit needs a full kit such as the A750E master rebuild kit for Toyota and Lexus trucks. Also scan for codes: lockup or shift solenoid codes point at the electrical side, and a failed A750E TCC solenoid costs far less than a teardown. Our guide to Aisin slipping under load covers the pressure tests that separate a leak from a valve body fault.
The kit is labeled for 2002-09 A750E/F applications. In practice that covers two-wheel-drive A750E trucks from the 2003 4Runner V8 onward, plus the 2004-on Sequoia, the 2005-on Tacoma V6, 4Runner V6 and Tundra, and the two-wheel-drive FJ Cruiser. Because the label calls out molded pistons, check that your unit uses the bonded-piston design before you start; if your originals use separate lip seals, tell us and we will help you find the right kit. Sending your year and VIN is the quickest way to confirm. Four-wheel-drive versions and other A750 parts are on our Aisin transmission page.
| Fits | A750E 2002 |
| Part type | Overhaul 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.
The piston seals are bonded directly to the pistons instead of being separate rubber lips. The label on this kit specifies the molded piston version, so compare it with the pistons in your transmission.
The kit label covers A750E/F, and the internal seals are shared. The A750F uses a transfer case adapter instead of a tailhousing, so check the rear gasket against your original, or send us your VIN to confirm.
No. The kit is catalogued 2002-09 and the A750E reached North American trucks for 2003, so a 2005 Tundra falls within the range the label covers.
No. This is a sealing kit. If the fluid is burnt or the clutches are glazed, order a master rebuild kit that includes frictions and steels.
Yes. Clear the transmission's learned values after installation so the computer adapts to the restored apply pressure instead of the old leaking circuits.
