2021 Toyota 4RUNNER Automatic Transmission Parts

This table covers the Boost valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

One part is listed for the 2021 Toyota 4RUNNER — TRANSGO A750BOOST.

This table covers the Bushing kits. Read more

This group shows a single part: DURA-BOND TK22.

This table covers the clutch-plate packs inside the transmission or transfer case. Read more

3 Clutch Plate Pack parts for the 2021 Toyota 4RUNNER come from RAYBESTOS POWERTRAIN.

In the Friction Plate Pack grade, RAYBESTOS POWERTRAIN supplies 2 parts: grouped under the catalog's "Friction Plate Pack" designation — the notes column spells out what sets them apart. A representative part number is RAYBESTOS POWERTRAIN FRMTOYTA49.

The Steel Plate Pack section lists 1 option from RAYBESTOS POWERTRAIN — grouped under the catalog's "Steel Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN STMTOYTA49 is listed in this group.

Listed part numbers: RAYBESTOS POWERTRAIN FRMTOYTA49, RAYBESTOS POWERTRAIN RHT96204 and RAYBESTOS POWERTRAIN STMTOYTA49.

This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

5 Filter parts for the 2021 Toyota 4RUNNER come from 5 brands — VARIOUS MFR, BECK/ARNLEY, HASTINGS / BALDWIN and 2 other brands. The "Popular" part is BECK/ARNLEY 0440345.

The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PT9931 is listed in this group.

In the Standard Replacement grade, BECK/ARNLEY, HASTINGS / BALDWIN, RAYBESTOS POWERTRAIN and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is BECK/ARNLEY 0440345.

Listed part numbers: BECK/ARNLEY 0440345, VARIOUS MFR PT9931 and HASTINGS / BALDWIN TF210, plus the other parts above.

This table covers the Fluid Cooler Line hoses. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

3 Fluid Cooler Line / Hose parts for the 2021 Toyota 4RUNNER come from SUNSONG.

This group includes SUNSONG 5801844, SUNSONG 5801854 and SUNSONG 5801881.

This table covers the pans that hold automatic-transmission fluid. Read more

2 Fluid Pan parts are listed for the 2021 Toyota 4RUNNER, from DORMAN and SKP.

Listed part numbers: DORMAN 265900 and SKP SK265900.

This table covers the gaskets that seal the Fluid Pan. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: FEL-PRO TOS18736.

This table covers the Fluid Pump bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: DURA-BOND TOY4TG.

This table covers the Shift Improvement kits. Read more

This group shows a single part: TRANSGO SKA750WTA.

This table covers the Shift solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

One part is listed for the 2021 Toyota 4RUNNER — STANDARD MOTOR PRODUCTS TCS125.

This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid. Read more

17 Transmission Fluid parts for the 2021 Toyota 4RUNNER come from 8 brands — VALVOLINE, LIQUI MOLY, PENTOSIN and 5 other brands. The "Popular" part is ACDELCO 109243.

In the ATF 64 grade, PENTOSIN supplies 2 parts: grouped under the catalog's "ATF 64" designation — the notes column spells out what sets them apart. A representative part number is PENTOSIN 1058113.

The Dexron section lists 1 option from ACDELCO — grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. ACDELCO 109243 is listed in this group.

The Multi-Vehicle section lists 11 options from VALVOLINE, LIQUI MOLY, LUCAS OIL and 2 other brands — grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. MOBIL 126505 is listed in this group.

The World Standard (WS) section lists 2 options from IDEMITSU — grouped under the catalog's "World Standard (WS)" designation — the notes column spells out what sets them apart. IDEMITSU 30040096750 is listed in this group.

1 further part sits outside the graded sections, with the same engine-level match.

This table covers the conditioners and additives used with this transmission fluid. Read more

7 Transmission Fluid Additive parts for the 2021 Toyota 4RUNNER come from LUBEGARD. The "Popular" part is LUBEGARD 19610.

Listed part numbers: LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, plus the other parts above.

This table covers the mounts that hold the transmission to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

8 Transmission Mount parts are listed for the 2021 Toyota 4RUNNER, from ANCHOR, DEA / MARMON RIDE CONTROL, WESTAR and 2 other brands. ANCHOR 9494 carries the "Popular" badge.

This group includes ANCHOR 9494, DEA / MARMON RIDE CONTROL A4263 and ANCHOR 9425 and the remaining parts above.