35 Automatic transmission parts are listed for the 2021 Infiniti Q50, in 8 part types, covering both the 3.0L V6 Turbocharged and the 3.5L V6 ELECTRIC/GAS. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Infiniti Q50, 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 (16 parts), Transmission Fluid Additive (6 parts) and Fluid Cooler Line / Hose (5 parts). The other 5 part types cover the remaining 8 parts.
The 2021 Infiniti Q50 was sold with both the 3.0L V6 Turbocharged and the 3.5L V6 ELECTRIC/GAS. 7 parts fit every engine; the other 28 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Infiniti Q50 automatic transmission parts are LUBEGARD (7 parts), SUNSONG (5 parts) and VALVOLINE (4 parts), plus 15 more brands. Quality grades include Multi-Vehicle, Standard Replacement and Economy.
7 parts on this 2021 Infiniti Q50 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SUNSONG 5801926 (Fluid Cooler Line / Hose) and ACDELCO 109243 (Transmission Fluid). Click any part number to see every vehicle that part fits.
Bushing Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 3.0L V6 Turbocharged | TK31 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Bushing kits.
This group shows a single part: DURA-BOND TK31.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 3.0L V6 Turbocharged | PT99789 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.0L V6 Turbocharged | B205 | 🇺🇸 US 🇨🇦 CA | Premium Replacement | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 3.0L V6 Turbocharged | 515785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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 Infiniti Q50 come from 3 brands — VARIOUS MFR, ATP and RAYBESTOS POWERTRAIN.
The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PT99789 is listed in this group.
In the Standard Replacement grade, ATP and RAYBESTOS POWERTRAIN supply 2 parts: built to original-equipment specification. A representative part number is ATP B205.
Listed part numbers: VARIOUS MFR PT99789, ATP B205 and RAYBESTOS POWERTRAIN 515785.
Fluid Cooler Line / Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SUNSONG Popular Fits: all 2021 Q50 engines | 5801926 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Set of 2 Hoses | View on Amazon |
| SUNSONG Fits: 3.0L V6 Turbocharged | 5802130 | 🇺🇸 US 🇨🇦 CA | OutletAWD | View on Amazon |
| SUNSONG Fits: 3.0L V6 Turbocharged | 5802132 | 🇺🇸 US 🇨🇦 CA | InletAWD | View on Amazon |
| SUNSONG Fits: 3.0L V6 Turbocharged | 5802133 | 🇺🇸 US 🇲🇽 MX | InletRWD | View on Amazon |
| SUNSONG Fits: 3.0L V6 Turbocharged | 5802134 | 🇺🇸 US 🇲🇽 MX | OutletRWD | 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.
5 Fluid Cooler Line / Hose parts for the 2021 Infiniti Q50 come from SUNSONG. The "Popular" part is SUNSONG 5801926. 1 part fits every engine; the other 4 are engine-specific.
This group includes SUNSONG 5801926, SUNSONG 5802130 and SUNSONG 5802132 and the remaining parts above.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 3.0L V6 Turbocharged | TOS18772 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
This group shows a single part: FEL-PRO TOS18772.
Transmission Fluid
ATF 64
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: 3.0L V6 Turbocharged | 1058113 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 LiterATF64 or ATF44 | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 1058215 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5 LitersATF64 or ATF44 | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.0L V6 Turbocharged | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Matic S
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Fits: 3.0L V6 Turbocharged | 30040101750 | 🇺🇸 US | ATF Type S1 Quart | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 3.0L V6 Turbocharged | 126505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Popular Fits: 3.0L V6 Turbocharged | VV3246 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 3.0L V6 Turbocharged | 773775 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| LIQUI MOLY Fits: 3.0L V6 Turbocharged | 20032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.0L V6 Turbocharged | 22036 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.0L V6 Turbocharged | 20034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top TEC ATF 180020 Liter | View on Amazon |
| LUBEGARD Fits: 3.0L V6 Turbocharged | 69032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 QuartComplete Full Synthetic ATF Fluid | View on Amazon |
| LUCAS OIL Fits: 3.0L V6 Turbocharged | 11255 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LOW VISCOSITY SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt | View on Amazon |
| LUCAS OIL Fits: 3.0L V6 Turbocharged | 18037 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Low Viscosity Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged | 881051 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
ZF Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ZF Fits: 3.0L V6 Turbocharged | 5961308625 | 🇺🇸 US 🇨🇦 CA | Includes: 1 L Bottle | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 3.0L V6 Turbocharged | 899179 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
16 Transmission Fluid parts for the 2021 Infiniti Q50 come from 9 brands — VALVOLINE, LIQUI MOLY, PENTOSIN and 6 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.
In the Matic S grade, IDEMITSU supplies 1 part: grouped under the catalog's "Matic S" designation — the notes column spells out what sets them apart. A representative part number is IDEMITSU 30040101750.
The Multi-Vehicle section lists 10 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 ZF Fluid section lists 1 option from ZF — grouped under the catalog's "ZF Fluid" designation — the notes column spells out what sets them apart. ZF 5961308625 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 Popular Fits: all 2021 Q50 engines | 19610 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: all 2021 Q50 engines | 60902 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Q50 engines | 19689 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Q50 engines | 63010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Q50 engines | 63016 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Q50 engines | 63032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
6 Transmission Fluid Additive parts for the 2021 Infiniti Q50 come from LUBEGARD. The "Popular" part is LUBEGARD 19610. Every part fits both the 3.0L V6 Turbocharged and the 3.5L V6 ELECTRIC/GAS.
Part numbers include LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, among others listed above.
Transmission Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 3.0L V6 Turbocharged | 10279 | 🇺🇸 US 🇨🇦 CA | RearAWD | View on Amazon |
| WESTAR Fits: 3.0L V6 Turbocharged | EM7717 | 🇺🇸 US 🇨🇦 CA | AWD | View on Amazon |
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.
2 Transmission Mount parts are listed for the 2021 Infiniti Q50, from ANCHOR and WESTAR.
Part numbers include ANCHOR 10279 and WESTAR EM7717.
Valve Body Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 3.5L V6 ELECTRIC/GAS | SK3139010 | 🇲🇽 MX | View on Amazon |
This table covers the Valve Body covers.
One part is listed for the 2021 Infiniti Q50 — SKP SK3139010.
Buying Automatic Transmission Parts for a 2021 Infiniti Q50
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 Infiniti Q50?
Our catalog currently lists 35 automatic transmission parts for the 2021 Infiniti Q50 across 8 subcategories and 18 brands, covering both the 3.0L V6 Turbocharged and the 3.5L V6 ELECTRIC/GAS. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2021 Infiniti Q50 engines?
Some do. 7 parts fit every engine; the other 28 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 Infiniti Q50?
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 Infiniti Q50 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 Infiniti Q50?
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 Infiniti Q50
Automatic Transmission Parts for Other Infiniti Q50 Years
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