A750F Input Drum, used and ready to install. Fits the A750F. Ships fast from the USA.
If your 4x4 4Runner, Tacoma, Tundra, Sequoia, FJ Cruiser or Lexus GX 470 now shifts late, slips out of a gear when you lean on it, or showed a scored input shaft and a worn drum when the A750F came apart, you are replacing the assembly that takes engine torque into the gearbox. This is a used, original-equipment A750F input drum, shown in the photo on its input shaft. Getting the shaft with the drum saves you from pairing a fresh drum with a shaft whose sealing ring grooves are already worn, which is one of the quieter reasons rebuilds come back.
Every gear in the A750F starts here. The torque converter turbine drives the input shaft, and the drum on that shaft carries clutch packs that lock the shaft to the planetary sets in different combinations. Toyota's factory data lists the forward, direct and reverse clutch specs under the clutch drum and input shaft heading. Apply oil from the pump and valve body travels through cross-drilled passages in the shaft, sealed by rings that ride in machined grooves. When those grooves wear, oil escapes before it reaches the piston, the clutch applies soft, and the gearbox starts missing the shift points it was designed for.
Solenoid faults are the most common A750 complaint, and an intermittent shift solenoid produces late or missing shifts too. Rule them out with a scan for codes; our A750F solenoid kit is the cheaper fix if that is the cause.
Start with the fluid: our ATF color and smell chart helps tell normal wear from burnt clutches. Then follow the steps in our transmission slipping diagnosis guide and compare your gauge readings with Toyota's: 52 to 62 psi in Drive at idle, and 185 to 218 psi in Reverse at stall. Engagement time from Neutral should be under 1.2 seconds into Drive and under 1.5 seconds into Reverse. Good pressure with a slow engagement means oil is leaking inside the clutch circuit, which puts the drum, its piston seals or the shaft sealing rings at the top of the list.
This part is listed for the A750F with a cross-reference to the A750E. The A750F went into the 4x4 4Runner from 2003, the 2003-2009 GX 470, 2004-2009 4x4 Sequoia, 2005-2015 4x4 V6 Tacoma, 2005-2009 4x4 Tundra and the 4x4 FJ Cruiser, along with the 2003-2007 Land Cruiser and LX 470. The listing does not state a year, and internal revisions happened during that long run, so measure the shaft length and count the splines and sealing ring grooves against your original, or send us your year and VIN to verify. Other parts for this family are in our Aisin parts collection.
| Fits | A750F |
| Part type | Input Drum |
| Condition | Used |
| Brand | OEM |
| Reference | A750E |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The photo shows the input drum assembled on its input shaft, so the shaft journals and drum come from the same unit.
The listing cross-references the A750E, which shares the gear train with the A750F. Compare the shaft and drum to your original or send your year and VIN before ordering.
Apply oil for the clutches travels through the shaft and is sealed by rings in machined grooves. Worn grooves let oil leak before it reaches the piston, so the clutch applies weakly and slips.
Toyota specifies less than 1.2 seconds from Neutral to Drive and less than 1.5 seconds from Neutral to Reverse. Longer lag with good line pressure points to a clutch circuit leak.
Yes. Reset adaptive values with a scan tool if available and drive through every gear at light and moderate throttle so the computer relearns clutch fill timing.
