2021 Toyota Sienna Drivetrain Parts

This table covers the seals where an axle shaft exits the housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Axle Shaft Seal parts for the 2021 Toyota Sienna come from TIMKEN.

Part numbers include TIMKEN SL260534 and TIMKEN SL260535.

This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes. Read more

9 CV Axle parts for the 2021 Toyota Sienna come from 4 brands — GSP, TRAKMOTIVE, APWI and 1 other brand. The "Popular" part is TRAKMOTIVE TO86031.

Part numbers include TRAKMOTIVE TO86031, TRAKMOTIVE TO86026 and APWI TO8502, among others listed above.

This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn. Read more

This group shows a single part: BECK/ARNLEY 1033191.

This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle. Read more

12 Gear Oil parts for the 2021 Toyota Sienna come from 6 brands — VALVOLINE, PENTOSIN, LUCAS OIL and 3 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 6 options from VALVOLINE, LUCAS OIL and MOBIL — 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 fluids specified for the transfer case. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable. Read more

This group shows a single part: IDEMITSU 30305024750.