20 Automatic transmission parts are listed for the 2021 Acura NSX, in 5 part types, covering the 3.5L V6 ELECTRIC/GAS Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Acura NSX, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Most of the listed parts are Transmission Fluid (12 parts), Transmission Fluid Additive (5 parts) and Drain Plug Gasket (1 part). The other 2 part types cover the remaining 2 parts.
The 2021 Acura NSX came with a single engine, the 3.5L V6 ELECTRIC/GAS Turbocharged, and every part is verified against it.
9 brands supply automatic transmission parts for the 2021 Acura NSX, led by LUBEGARD (6 parts), VALVOLINE (4 parts) and LIQUI MOLY (3 parts), plus 6 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Acura NSX. 4 parts have it, including ACDELCO 109243 (Transmission Fluid) and LUBEGARD 63010 (Transmission Fluid Additive). Each part number opens a page with every vehicle that part fits.
Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 652530CD | 🇺🇸 US 🇨🇦 CA | 20 MMAluminum | View on Amazon |
This table covers the gaskets that seal the Drain Plug. 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.
This group shows a single part: DORMAN 652530CD.
Fluid Cooler Line / Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SUNSONG | 5802143 | 🇺🇸 US 🇨🇦 CA | Inlet To Transmission (Passenger Side) | View on Amazon |
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.
One part is listed for the 2021 Acura NSX — SUNSONG 5802143.
Fluid Temperature Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1581807 | 🇺🇸 US 🇨🇦 CA | OIL TEMPERATURE | View on Amazon |
This table covers the Fluid temperature sensors. Typical signs include hard cold starts, a fan that never comes on, or a gauge that disagrees with the scan tool. A sensor that reads open or shorted is usually the part; an implausible-but-smooth reading can be wiring.
One part is listed for the 2021 Acura NSX — BECK/ARNLEY 1581807.
Transmission Fluid
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 |
|---|---|---|---|---|
| MOBIL Popular | 126505 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Popular | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| LIQUI MOLY | 20032 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY | 22036 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY | 20034 | 🇺🇸 US 🇨🇦 CA | Top TEC ATF 180020 Liter | View on Amazon |
| LUBEGARD | 69032 | 🇺🇸 US 🇨🇦 CA | 1 QuartComplete Full Synthetic ATF Fluid | 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 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.
12 Transmission Fluid parts are listed for the 2021 Acura NSX, from VALVOLINE, LIQUI MOLY, PENTOSIN and 3 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, LIQUI MOLY, MOBIL and 1 other brand supply 8 parts: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is MOBIL 126505.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular | 63010 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD | 63016 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD | 63032 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant32 oz | View on Amazon |
| LUBEGARD | 63015 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant5 Gallon | View on Amazon |
| LUBEGARD | 63055 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant55 Gallon | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
LUBEGARD supplies the 5 Transmission Fluid Additive parts for the 2021 Acura NSX. LUBEGARD 63010 carries the "Popular" badge.
Part numbers include LUBEGARD 63010, LUBEGARD 63016 and LUBEGARD 63032, among others listed above.
Buying Automatic Transmission Parts for a 2021 Acura NSX
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Confirm you have the 3.5L V6 ELECTRIC/GAS Turbocharged 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 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 Acura NSX?
Our catalog currently lists 20 automatic transmission parts for the 2021 Acura NSX across 5 subcategories and 9 brands, covering the 3.5L V6 ELECTRIC/GAS Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 2021 Acura NSX?
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 Acura NSX 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 Acura NSX?
Every part on this page is matched to the 3.5L V6 ELECTRIC/GAS Turbocharged engine. 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 Acura NSX
Automatic Transmission Parts for Other Acura NSX Years
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