A760E Overhaul Kit 2006-2009, new and ready to install. Fits the A760E. Ships fast from the USA.
A 2006-2009 Lexus IS350 or GS350 that flares between third and fourth, slips when you lean on it, or keeps throwing solenoid performance codes after new solenoids went in usually needs its clutch packs and seals renewed, not another bolt-on part. This overhaul kit is made for the Aisin six-speed A760E and the closely related A761E used in the Lexus LS430 and GS430. Per the listing it contains the sealing rings, seals, gaskets and clutch plates for a teardown, and it carries the kit reference numbers W188881A, B188820A and B188880A.
The A760E is the six-speed member of Aisin's longitudinal A7 family. It keeps the A750E's first through fifth ratios and adds a 0.586 sixth gear, which means more clutch and brake packs that have to apply and release with no overlap error. The transmission computer judges every shift by watching input and output speed. When piston seals harden, sealing rings wear grooves into the drums or frictions glaze, the apply pressure bleeds off and the computer sees a ratio it never commanded. Because this kit includes clutch plates as well as the soft parts, one teardown renews both the sealing and the friction surfaces instead of resealing a unit that will still slip on worn plates.
Sonnax explains that those P07xx performance codes set when the computer commands a gear and reads the wrong ratio, so a slipping clutch triggers them just as easily as a stuck solenoid. On these six-speeds the on-off solenoids are fed line pressure straight from the manual valve with no orifice, which makes them sensitive to debris from a wearing unit. Watch commanded gear against actual ratio with a scan tool, as shown in our guide to reading transmission live data, and work through the causes in Aisin slipping under load. TransGo also documents worn line pressure boost valves on this family, so check line pressure under load; a valve body fault can mimic worn clutches. If the pan shows heavy friction debris, a rebuild with this kit is the right call.
The listing covers the A760E and A761E for 2006 through 2009 and names the Lexus GS350, IS350 and LS430. The A760E was used in the 2006-2009 IS350 and GS350 rear-drive cars, and the A761E in the LS430 and GS430. The two are not identical inside: the A761E has different gear ratios, so confirm the transmission model on your ID tag before ordering. The rear-drive IS250 uses the A960E, not the A760E, and this kit should not be ordered for it. All-wheel-drive A760H cars and the later A760F trucks are also different. If you are unsure, send us your year and VIN. You can browse other Aisin parts on our Aisin transmission page.
| Fits | A760E 2006-2009 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| Reference | A761E |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The rear-drive IS250 uses the A960E six-speed, not the A760E. This kit is for the A760E in the IS350 and GS350 and the A761E in the LS430 and GS430. Check the transmission ID tag before ordering.
The listing states it includes rings, seals, gaskets and clutch plates, so it covers the friction side as well as the soft parts. Steel plates, bushings and the filter should be inspected and replaced as needed.
The listing names both the A760E and A761E and the LS430. The A761E uses different gear ratios, so compare the kit against your teardown and send us your VIN if you want the fit confirmed first.
Toyota WS automatic transmission fluid. The level is checked at the fill plug at the specified fluid temperature, not with a dipstick.
Yes. Clear the learned shift values with a scan tool that supports the Toyota transmission system, then drive through all six gears so the computer learns the new clutch apply times.
