2021 Toyota Tundra 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 Tundra — TRANSGO A750BOOST.

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

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

In the Friction Plate Pack grade, RAYBESTOS POWERTRAIN supplies 3 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 RGPZ023.

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 STMTOYTA55 is listed in this group.

This group includes RAYBESTOS POWERTRAIN RGPZ023, RAYBESTOS POWERTRAIN FRMTOYTA55 and RAYBESTOS POWERTRAIN RCP96261 and the remaining parts above.

This table covers the End plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

One part is listed for the 2021 Toyota Tundra — TRANSGO 960VBPLGS.

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

2 Filter parts for the 2021 Toyota Tundra come from 2 brands — VARIOUS MFR and RAYBESTOS POWERTRAIN.

The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PT99838 is listed in this group.

In the Standard Replacement grade, RAYBESTOS POWERTRAIN supplies 1 part: built to original-equipment specification. A representative part number is RAYBESTOS POWERTRAIN 515661.

This group includes VARIOUS MFR PT99838 and RAYBESTOS POWERTRAIN 515661.

This table covers the heat exchangers that cool transmission fluid. Typical signs include fluid that overheats, a leak at the cooler fittings, or milky fluid that says coolant and ATF have mixed. Flush the lines when you replace a cooler. Cross-contamination is how a small leak becomes a transmission job. Read more

2 Fluid Cooler parts for the 2021 Toyota Tundra come from 2 brands — AUTOTECNICA and DORMAN.

Listed part numbers: AUTOTECNICA TY1220027 and DORMAN 918678.

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 TOS18760.

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

6 Shift Solenoid parts are listed for the 2021 Toyota Tundra, from BECK/ARNLEY, ACKOJA, HOLSTEIN and 1 other brand. BECK/ARNLEY 0470024 carries the "Popular" badge.

This group includes BECK/ARNLEY 0470024, BECK/ARNLEY 0470025 and ACKOJA A70770058 and the remaining parts above.

This table covers the Torque Converter Clutch 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

This group shows a single part: BECK/ARNLEY 0470023.

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 Tundra 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 Tundra 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 Tundra, from ULTRA-POWER, ANCHOR, DEA / MARMON RIDE CONTROL and 1 other brand. ANCHOR 9522 carries the "Popular" badge.

Economy: 2 parts, from ULTRA-POWER. A representative part number is ULTRA-POWER A62095.

The Standard Replacement section: 6 options from ANCHOR, DEA / MARMON RIDE CONTROL and WESTAR. ANCHOR 9522 is listed in this group.

This group includes ANCHOR 9522, ULTRA-POWER A62095 and ULTRA-POWER A42016 and the remaining parts above.

This table covers the Transmission Mount 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

One part is listed for the 2021 Toyota Tundra — ENERGY SUSPENSION 81110.