The 2021 Honda Clarity has 23 automatic transmission parts with verified fitment on this page — 4 part types and 11 brands, covering both the 1.5L L4 ELECTRIC/GAS and the ELECTRIC. Each part includes a manufacturer part number and application notes.
The automatic transmission on the 2021 Honda Clarity covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. The largest groups are Transmission Fluid (14 parts), Transmission Fluid Additive (5 parts) and Filter (3 parts). The other 1 part type covers the remaining 1 part.
The 2021 Honda Clarity was sold with both the 1.5L L4 ELECTRIC/GAS and the ELECTRIC. 4 parts fit every engine; the other 19 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Honda Clarity automatic transmission parts are LUBEGARD (6 parts), VALVOLINE (4 parts) and LIQUI MOLY (3 parts), plus 8 more brands. Quality grades include Multi-Vehicle, Standard Replacement and CVT.
3 parts on this 2021 Honda Clarity page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO 109243 (Transmission Fluid) and MOBIL 126505 (Transmission Fluid). Click any part number to see every vehicle that part fits.
Case Vent
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2021 Clarity engines | 14161 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the vents on a transmission or axle housing.
One part is listed for the 2021 Honda Clarity — DORMAN 14161.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 1.5L L4 ELECTRIC/GAS | PT99622 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 1.5L L4 ELECTRIC/GAS | B205 | 🇺🇸 US | Premium Replacement | View on Amazon |
| BECK/ARNLEY Fits: 1.5L L4 ELECTRIC/GAS | 0440461 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
3 Filter parts for the 2021 Honda Clarity come from 3 brands — VARIOUS MFR, ATP and BECK/ARNLEY.
The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PT99622 is listed in this group.
In the Standard Replacement grade, ATP and BECK/ARNLEY supply 2 parts: built to original-equipment specification. A representative part number is ATP B205.
Listed part numbers: VARIOUS MFR PT99622, ATP B205 and BECK/ARNLEY 0440461.
Transmission Fluid
ATF 64
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: all 2021 Clarity engines | 1058113 | 🇺🇸 US 🇨🇦 CA | 1 LiterATF64 or ATF44 | View on Amazon |
| PENTOSIN Fits: all 2021 Clarity engines | 1058215 | 🇺🇸 US 🇨🇦 CA | 5 LitersATF64 or ATF44 | View on Amazon |
CVT
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Fits: 1.5L L4 ELECTRIC/GAS | 68112 | 🇺🇸 US 🇨🇦 CA | Complete CVT Fluid32 oz | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 1.5L L4 ELECTRIC/GAS | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: all 2021 Clarity engines | 126505 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Popular Fits: 1.5L L4 ELECTRIC/GAS | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| LIQUI MOLY Fits: 1.5L L4 ELECTRIC/GAS | 20032 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: 1.5L L4 ELECTRIC/GAS | 22036 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: 1.5L L4 ELECTRIC/GAS | 20034 | 🇺🇸 US 🇨🇦 CA | Top TEC ATF 180020 Liter | View on Amazon |
| LUCAS OIL Fits: 1.5L L4 ELECTRIC/GAS | 11255 | 🇺🇸 US 🇨🇦 CA | LOW VISCOSITY SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt | View on Amazon |
| LUCAS OIL Fits: 1.5L L4 ELECTRIC/GAS | 18037 | 🇺🇸 US 🇨🇦 CA | Low Viscosity Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon | View on Amazon |
| VALVOLINE Fits: 1.5L L4 ELECTRIC/GAS | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: 1.5L L4 ELECTRIC/GAS | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 1.5L L4 ELECTRIC/GAS | 899179 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic ATF1 Quart | View on Amazon |
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.
14 Transmission Fluid parts for the 2021 Honda Clarity come from 7 brands — VALVOLINE, LIQUI MOLY, PENTOSIN and 4 other brands. The "Popular" part is ACDELCO 109243. 3 parts fit every engine; the other 11 are engine-specific.
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.
In the CVT grade, LUBEGARD supplies 1 part: grouped under the catalog's "CVT" designation — the notes column spells out what sets them apart. A representative part number is LUBEGARD 68112.
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 9 options from VALVOLINE, LIQUI MOLY, LUCAS OIL and 1 other brand — grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. MOBIL 126505 is listed in this group.
1 further part sits outside the graded sections, with the same engine-level match.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Fits: 1.5L L4 ELECTRIC/GAS | 67010 | 🇺🇸 US 🇨🇦 CA | Continuously Variable Transmission Recharge & Protect10 oz | View on Amazon |
| LUBEGARD Fits: ELECTRIC | 60902 | 🇺🇸 US | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: ELECTRIC | 50902 | 🇺🇸 US | Automatic Transmission Fluid Protectant32 oz | View on Amazon |
| LUBEGARD Fits: ELECTRIC | 50904 | 🇺🇸 US | Automatic Transmission Fluid Protectant5 Gallon | View on Amazon |
| LUBEGARD Fits: ELECTRIC | 50905 | 🇺🇸 US | Automatic Transmission Fluid Protectant55 Gallon | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
5 Transmission Fluid Additive parts for the 2021 Honda Clarity come from LUBEGARD.
Listed part numbers: LUBEGARD 67010, LUBEGARD 60902 and LUBEGARD 50902, plus the other parts above.
Buying Automatic Transmission Parts for a 2021 Honda Clarity
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Some automatic transmission parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Transmission Fluid and Transmission Fluid Additive .
Frequently Asked Questions
How many automatic transmission parts fit the 2021 Honda Clarity?
Our catalog currently lists 23 automatic transmission parts for the 2021 Honda Clarity across 4 subcategories and 11 brands, covering both the 1.5L L4 ELECTRIC/GAS and the ELECTRIC. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2021 Honda Clarity engines?
Some do. 4 parts fit every engine; the other 19 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of automatic transmission problems on a 2021 Honda Clarity?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
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 Honda Clarity 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 Honda Clarity?
First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Honda Clarity
Automatic Transmission Parts for Other Honda Clarity Years
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