A750E Input Drum, used and ready to install. Fits the A750E. Ships fast from the USA.
A 2WD Toyota with the A750E that bumps into Drive late, flares between gears under throttle, or came off the bench with a cracked drum or a chewed-up shaft journal needs the hard part at the front of the gear train: the input drum. This is a used, original-equipment A750E input drum, and the photo shows it still mounted on the input shaft with the drums stacked the way they come out of the case. Buying the shaft and drum together means the sealing ring grooves, bushings and splines are a matched set instead of a mix of parts from different units.
The A750E is Aisin's electronically controlled 5-speed for rear-drive Toyota trucks and SUVs, with factory ratios of 3.52 first, 2.042 second, 1.40 third, 1.00 fourth, 0.716 fifth and 3.224 reverse. The input shaft is splined to the torque converter turbine, so every pound of engine torque enters the gearbox through it. The drums riding on that shaft hold the forward, direct and reverse clutch packs that Toyota lists under its clutch drum and input shaft service data. Fluid for each clutch piston travels down drilled passages in the shaft and is held in by sealing rings, which is why a worn ring groove on the shaft behaves exactly like a leaking piston seal in the drum.
The A750 family is also known for shift solenoid and lockup solenoid faults and valve body wear. Those set codes or change line pressure, so rule them out before blaming hard parts.
Put a gauge on the line pressure port and compare against Toyota's numbers: 52 to 62 psi in Drive and 73 to 87 psi in Reverse at idle, and 198 to 214 psi in Drive at stall with a stall speed of 2,250 to 2,550 rpm. Our line pressure testing walkthrough shows how to hook up and read the gauge. If pressure is correct but engagement lag runs past 1.2 seconds into Drive or 1.5 seconds into Reverse, the leak is inside a clutch circuit, which means the drum, its piston seals or the shaft sealing rings. For engagement complaints specific to Aisin units, see our Aisin harsh or delayed shift guide.
This listing covers the A750E and cross-references the A750F. Published applications for the A750E include the 2003-2009 V8 4Runner, 2004-2009 Sequoia, 2005-on V6 4Runner, 2005-2015 V6 Tacoma, 2005-2009 Tundra and the 2WD FJ Cruiser. No model year is given on the listing, and Toyota made running changes across that span, so line your old shaft up next to this one and compare overall length, spline count and the number of sealing ring grooves before you commit. If you would rather we check it, send your year and VIN. More parts for this gearbox are in our Aisin parts collection.
| Fits | A750E |
| Part type | Input Drum |
| Condition | Used |
| 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.
Yes. The photo shows the drum assembly mounted on its input shaft as it came out of the transmission. Compare it to your original before installing.
The A750E is the two-wheel-drive version: V8 and V6 4Runner, Sequoia, V6 Tacoma, Tundra and the 2WD FJ Cruiser. Four-wheel-drive versions of those trucks use the A750F. Send us your year and VIN if you are unsure.
Toyota lists 52 to 62 psi in Drive and 73 to 87 psi in Reverse at idle, and 198 to 214 psi in Drive at stall. Correct pressure with slow engagement points toward a clutch circuit leak in the drum or shaft.
It is not recommended. Install new frictions, steels, piston seals and shaft sealing rings so the used drum and shaft are paired with fresh wear parts.
Use the Toyota ATF listed in your owner's manual, which is Toyota WS on most A750 applications, and check the level at operating temperature with the check plug procedure.
