
A341E Valve Body, new and ready to install. Fits the A341E. Ships fast from the USA.
If your 1985-2004 Toyota 4Runner, Tacoma, T100, Tundra, Supra, Cressida or Lexus SC/IS is shifting harsh, slipping between gears, delaying engagement into gear, or has set a pressure or solenoid code, the valve body is the most common point of failure in the A341E before a full rebuild is needed. This is a new A341E valve body, so you install a known-good unit instead of chasing bore wear and solenoid drift piece by piece inside the original casting.
The A341E is an electronically controlled 4-speed automatic, and the valve body is its hydraulic brain - it routes line pressure through precision bores and spool valves to apply each clutch and band, while the solenoids mounted on it carry out the shift and line-pressure commands from the computer. Transmission Digest's identification writeup on the 341E-type valve body family notes that the units used across Toyota, Lexus and Volvo applications look alike but are not interchangeable: two versions carry four solenoids (one with a throttle-cable provision, one without), and a third carries five solenoids with no cable, and the solenoids are not functionally identical - one controls line pressure while another controls accumulator backpressure.
Scan for codes and note exactly which shifts are affected before you buy - a valve body fault usually shows a consistent pattern (the same gear missing or the same shift harsh every time), while an intermittent, all-over-the-map complaint is more often a wiring or ground fault than a worn valve body. Confirm the fluid level and condition first, since low or burnt fluid can mimic valve body symptoms on this transmission.
This listing fits the A341E as used across the 1985-2004 Toyota 4Runner, Tacoma, T100, Tundra and Supra, plus the Toyota Cressida and Lexus SC and IS applications that share the unit. Because the 341E-type valve body family ran multiple solenoid and casting configurations that look alike but are not interchangeable, match your old unit's solenoid count and connector style against the photos before installing, or send your year, model and VIN so we can confirm the correct configuration. We also stock the related A340E valve body with solenoids for the closely related Lexus-spec version of this family if your casting and connectors match that unit instead.
Change the fluid and filter at the same time as the valve body so debris from the old unit does not circulate into the new one - this transmission runs Dexron or Toyota T-IV ATF, and T-IV is the safer choice if your service history is unclear. Torque the valve body bolts in sequence to spec rather than corner to corner, and run the computer's adaptive relearn after installation so shift timing re-learns against the new unit instead of the worn one. If your original complaint was centered on torque converter lockup shudder or slip rather than a shift-quality problem, a TCC solenoid paired with fresh fluid may isolate that fault for less than replacing the whole valve body. Pair the swap with a solenoid, filter and gasket kit so you are not running a new valve body on old, contaminated fluid, and if clutch wear is part of the complaint, our clutch module and the A341E overhaul kit cover the rest of the rebuild.
| Fits | A341E |
| Part type | Valve Body |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
A worn valve body usually produces a consistent pattern - the same shift harsh or the same gear missing every time. An intermittent, all-over-the-map complaint is more often a wiring or ground fault. Check fluid level and condition first, since low or burnt fluid can mimic valve body symptoms.
It fits the A341E as used in the listed Toyota and Lexus applications, but the 341E-type family ran multiple solenoid counts and connector configurations that look alike but are not interchangeable. Match your old unit's solenoid count against the photos or send your VIN to confirm.
Dexron or Toyota T-IV ATF. T-IV is the safer pick if you are not certain what the transmission has run previously.
Yes - change the filter at the same time so old debris does not circulate into the new valve body, torque the bolts in sequence to spec, and run the computer's adaptive relearn so shift timing re-learns against the new unit.
Not necessarily. A TCC solenoid paired with fresh fluid can isolate a lockup-only fault for less than replacing the entire valve body.
A filter and gasket kit at minimum so the new valve body isn't running on contaminated fluid. If clutch wear is part of the complaint, pair it with a clutch module or the full overhaul kit.