Replaces all seven shift and pressure-control solenoids in the Toyota A750E five-speed when it flares, bangs the 1-2, or sets solenoid codes.
A Toyota 4Runner, FJ Cruiser, Tacoma V6, Tundra or Sequoia that slams the 1-2 shift, flares on an upshift and then catches hard, sits a beat too long before engaging Drive after an overnight soak, or drops into failsafe with a solenoid code is often telling you the valve body solenoids are worn out. This seven-piece kit covers the whole set in the Toyota A750E five-speed and also fits the four-wheel-drive A750F. Each solenoid is remanufactured, cleaned, calibrated and bench tested; expect light marks on the housings and a film of assembly lube.
The A750E has no throttle cable or governor. The transmission computer decides every shift and the seven solenoids turn those decisions into oil pressure. The kit contains the on-off shift solenoids that select the gear, the linear pressure-control solenoids that ramp clutch apply pressure during a shift, the SLT solenoid that sets line pressure, and the SLU solenoid that controls the torque converter clutch. If the SLT drifts, line pressure is wrong in every gear, which shows up as harsh engagements or soft slipping shifts. If the SLU is tired, lock-up shudders or drops out. Worn on-off solenoids leak or stick, so a shift valve does not move when commanded and the computer stores a performance code.
Toyota uses three different names for the same solenoid depending on whether you are reading the repair manual, the parts catalog or the scan tool, so look up what each stored code actually refers to before ordering. Measure each circuit through the case connector, then check the internal harness for chafed or oil-soaked wiring. Our solenoid bench testing guide shows how to check resistance and flow once they are out. For lock-up complaints, work through torque converter clutch shudder diagnosis first, because shudder can also come from the converter itself or from worn TCC valve bores. Valve body wear is a known A750 issue: if the bores are worn, new solenoids alone will not restore control, and a replacement A750E valve body is the better repair.
The kit fits the Toyota A750E and A750F five-speed automatic behind the 4.0L V6 and 4.7L V8. Listed applications are the Toyota 4Runner, FJ Cruiser, Tacoma V6, Tundra, Sequoia, Land Cruiser Prado, Hilux and Fortuner, and the Lexus GX 470. These transmissions were updated over a long production run, so compare the solenoid connectors and the count on your valve body with the kit, or send us your year and VIN to confirm. See the full range in our Aisin transmission parts collection. Shipping weight is about 2.2 lb.
The solenoids can be replaced with the transmission in the truck.
If you only have a lock-up fault and the other solenoids test fine, the single A750E TCC solenoid is an option, though most shops replace the full set while the pan is already off.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. The kit is listed for both the A750E and A750F five-speed. Compare the solenoid connectors and count on your valve body with the kit before installing.
The on-off shift solenoids, the linear pressure-control solenoids, the SLT line-pressure solenoid and the SLU lock-up solenoid that controls the torque converter clutch.
Toyota gives each A750 solenoid a repair-manual name, a parts-catalog name and a scan-tool name. A P0986, for example, refers to the solenoid the manual calls SR. Translate the code before replacing parts.
No. The solenoids are reached by removing the pan and filter with the transmission in the vehicle.
Toyota Genuine ATF Type WS. Other fluids can change shift feel and lock-up behavior on this unit.
The computer needs to relearn its adaptive values. Reset them and drive through every gear. If a harsh shift or flare remains, valve body bore wear or worn clutches are the next things to check.
