21 Drivetrain parts are listed for the 2021 Toyota Prius, in 3 part types, covering the 1.8L L4 ELECTRIC/GAS engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The drivetrain system on the 2021 Toyota Prius moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. All 21 listed parts are Gear Oil (10 parts), CV Axle (9 parts) and CV Joint Boot (2 parts).
The 2021 Toyota Prius came with a single engine, the 1.8L L4 ELECTRIC/GAS, and every part is verified against it.
11 brands supply drivetrain parts for the 2021 Toyota Prius, led by VALVOLINE (4 parts), APWI (2 parts) and GSP (2 parts), plus 8 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Toyota Prius. 4 parts have it, including APWI TO8453 (CV Axle) and ACDELCO 109243 (Gear Oil). Each part number opens a page with every vehicle that part fits.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APWI Popular | TO8453 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftPrius Base Model | View on Amazon |
| APWI Popular | TO8454 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightPrius Base Model | View on Amazon |
| CARDONE | 665449 | 🇺🇸 US 🇨🇦 CA | Front RightPrius AWD-e | View on Amazon |
| GSP | NCV69217 | 🇺🇸 US 🇨🇦 CA | RearPrius AWD-e | View on Amazon |
| GSP | NCV19001K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| TOP NOTCH | TN18193 | 🇺🇸 US 🇨🇦 CA | RearPrius AWD-e | View on Amazon |
| TOP NOTCH | TN18109 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| TRAKMOTIVE | TO8433 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE | TO8435 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
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.
9 CV Axle parts are listed for the 2021 Toyota Prius, from APWI, GSP, TOP NOTCH and 2 other brands. APWI TO8453 carries the "Popular" badge.
This group includes APWI TO8453, APWI TO8454 and CARDONE 665449 and the remaining parts above.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1032937 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Outer | View on Amazon |
| BECK/ARNLEY | 1033061 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Inner | View on Amazon |
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.
BECK/ARNLEY supplies both parts for the 2021 Toyota Prius.
Part numbers include BECK/ARNLEY 1032937 and BECK/ARNLEY 1033061.
Gear Oil
ATF 64
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN | 1058113 | 🇺🇸 US 🇨🇦 CA | 1 LiterATF64 or ATF44 | View on Amazon |
| PENTOSIN | 1058215 | 🇺🇸 US 🇨🇦 CA | 5 LitersATF64 or ATF44 | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| LUCAS OIL | 11255 | 🇺🇸 US 🇨🇦 CA | LOW VISCOSITY SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt | View on Amazon |
| LUCAS OIL | 18037 | 🇺🇸 US 🇨🇦 CA | Low Viscosity Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon | View on Amazon |
| MOBIL | 126505 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| VALVOLINE | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | 899179 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic ATF1 Quart | View on Amazon |
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.
10 Gear Oil parts are listed for the 2021 Toyota Prius, from VALVOLINE, PENTOSIN, LUCAS OIL and 2 other brands. ACDELCO 109243 carries the "Popular" badge.
The ATF 64 section lists 2 options from PENTOSIN — grouped under the catalog's "ATF 64" designation — the notes column spells out what sets them apart. PENTOSIN 1058113 is listed in this group.
In the Dexron grade, ACDELCO supplies 1 part: grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 109243.
In the Multi-Vehicle grade, VALVOLINE, LUCAS OIL and MOBIL supply 6 parts: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV3246.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Buying Drivetrain Parts for a 2021 Toyota Prius
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 1.8L L4 ELECTRIC/GAS engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Gear Oil and CV Axle .
Frequently Asked Questions
How many drivetrain parts fit the 2021 Toyota Prius?
Our catalog currently lists 21 drivetrain parts for the 2021 Toyota Prius across 3 subcategories and 11 brands, covering the 1.8L L4 ELECTRIC/GAS engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2021 Toyota Prius?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Toyota Prius was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Toyota Prius?
Every part on this page is matched to the 1.8L L4 ELECTRIC/GAS engine. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Toyota Prius
Drivetrain Parts for Other Toyota Prius Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.