A760E Transmission Shift Solenoid Set 9-Piece for Lexus

This nine-piece set is aimed at the Lexus side of the Aisin six-speed family: the GS350, IS250 and IS350, GX460, LX570 and RC models, plus the Tundra and other Toyota applications that share the valve body. If yours is landing every shift hard, slipping into lockup with a shudder, or storing solenoid performance codes, this set puts fresh electronics on the entire valve body in one pass.

What is in the set and what each solenoid does

The listing breaks the set down by position, which makes the install easier to follow:

• Shift solenoids A/S1, B/S2, C/S3 and D/S4: on/off valves that direct line pressure to the shift valves and select each gear
• SLU: the lockup solenoid that applies and releases the torque converter clutch
• SLT: the line pressure solenoid that sets base pressure according to throttle and load
• SL1, SL2 and SL3: linear solenoids that control clutch apply pressure during each clutch-to-clutch shift

In an A760E, A761E or AB60, the computer is constantly modulating SLT and the SL solenoids to time each shift. If SLT sticks high, line pressure never comes down and every shift lands hard. If SLU varnishes, lockup chatters instead of applying smoothly.

Symptoms

• A harsh or delayed 1-2 shift
• Every shift firm because line pressure stays high
• Converter shudder at light throttle, or lockup that will not hold
• Shift solenoid performance codes P0751, P0756 or P0761 set when the commanded gear and the measured ratio do not match
• Lockup complaints that tend to be worst on Tundra AB60 applications

How to confirm before you buy

Debris from a worn clutch pack and heat-cycled fluid are what usually kill these solenoids, and they also clog the bores the solenoids feed. Before buying, scan for codes, check the case connector for fluid wicking, and measure each circuit. Then look at the pan: a light film is normal, chunks of friction material are not. A loose bore plug behind the SR solenoid can also bleed the shared feed to S1-S4 and set codes that look like bad solenoids, so inspect it while the valve body is out. Our Aisin harsh or delayed shift walkthrough helps separate a pressure problem from a mechanical one, and valve body cleaning and inspection covers what to check in the bores.

Fitment

Listed transmissions are the A760, A761E, A960E, AB60E and AB60F (also cataloged as TB-60NF and TB65-SN). Listed Lexus fitment: 2007-2020 GS350, 2010-2020 GX460, 2004-2009 GX470, 2006-2015 IS250, 2006-2020 IS350, 2004-2006 LS430, 2008-2015 LX570, 2016-2017 RC200t, 2016-2020 RC300, 2015-2018 RC350 and SC430. Listed Toyota fitment: 2005-2020 4Runner, 2007-2013 FJ Cruiser, 2005-2015 Tacoma and 2005-2020 Tundra. Some of those vehicles, including the GX470 and most 4Runner, FJ Cruiser and Tacoma trucks, are five-speed A750 applications, so confirm your transmission before ordering, compare the connectors to the photo, or send your year and VIN. All of our parts for this family are on the Aisin transmission page.

Install notes

• Drop the pan and remove the valve body, then swap solenoids one at a time so the linear solenoids cannot be mixed up.
• Replace every solenoid O-ring and tighten the retaining bolts evenly so no solenoid sits cocked in its bore.
• Install a new filter and pan gasket; the AB60E/AB60F/A760 filter and gasket kit is the matching service kit.
• Flush the cooler and lines so old debris does not reach the new solenoids.
• Refill with Toyota WS fluid, check the level hot, clear codes and relearn shift adaptives.

If valve body bores are worn, new solenoids alone will not restore shift quality; a complete A760E valve body for 2010-2022 is the better repair. The kit weighs 1.62 lb.

Which solenoid causes torque converter shudder?

The SLU lockup solenoid controls converter clutch apply. A sticking SLU, worn TCC valve bores or old fluid can all cause shudder, so change the fluid and test before condemning the converter.

Does it include the SR solenoid?

The listed contents are S1, S2, S3, S4, SLU, SLT, SL1, SL2 and SL3. Reuse your SR solenoid if it tests good.

Will it fit my GX470 or 4Runner?

Those are listed, but most of them use the five-speed A750. Check the transmission tag or send your VIN so we can confirm before you order.

Why are my shifts all harsh?

A line pressure solenoid (SLT) stuck at high pressure makes every shift firm. Worn pressure regulator or boost valve bores can do the same, so check line pressure if you can.

What fluid do I need?

Toyota WS ATF. After the refill, clear codes and reset the adaptive values so the computer relearns against the new solenoids.

• Aisin Harsh or Delayed Shifts: A Diagnostic Walkthrough
• Transmission Valve Body Cleaning and Inspection
• TCC Shudder: What It Actually Is and How to Diagnose It Correctly
• Adaptive Relearn After a Valve Body Swap or Rebuild