This page lists 46 drivetrain parts for the 2020 Mazda 3, across 5 part types, covering both the 2.0L L4 and the 2.5L L4. Every part shows its brand, manufacturer part number and fitment notes.
On the 2020 Mazda 3, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 42 parts of the 46 listed are CV Axle (22 parts), Gear Oil (10 parts) and Transfer Case Fluid (10 parts). The other 2 part types cover the remaining 4 parts.
The 2020 Mazda 3 was sold with both the 2.0L L4 and the 2.5L L4. 6 parts fit every engine; the other 40 are engine-specific. Each part shows which engine(s) it fits.
6 brands supply drivetrain parts for the 2020 Mazda 3, led by VALVOLINE (20 parts), TRAKMOTIVE (13 parts) and GSP (6 parts), plus 3 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Mazda 3. 10 parts have it, including GSP NCV47124 (CV Axle) and VALVOLINE VV982 (Gear Oil). Each part number opens a page with every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Fits: all 2020 3 engines | SL260477 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear3 Base Model | View on Amazon |
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.
One part is listed for the 2020 Mazda 3 — TIMKEN SL260477.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP Popular Fits: 2.5L L4 | NCV47124 | 🇺🇸 US | Fits Front LeftAutomatic trans. | View on Amazon |
| GSP Popular Fits: 2.5L L4 | NCV47125 | 🇺🇸 US | Front RightAutomatic trans. | View on Amazon |
| TOP NOTCH Popular Fits: all 2020 3 engines | TN90116 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left3 Base Model | View on Amazon |
| TOP NOTCH Popular Fits: 2.5L L4 | TN90075 | 🇺🇸 US | Front RightAWD | View on Amazon |
| TRAKMOTIVE Popular Fits: all 2020 3 engines | MZ86018 | 🇺🇸 US 🇨🇦 CA | AARInboard Joint Boot Material: Neoprene | View on Amazon |
| TRAKMOTIVE Popular Fits: 2.5L L4 | MZ86022 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| GSP Fits: all 2020 3 engines | NCV47138 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left3 Base Model | View on Amazon |
| GSP Fits: all 2020 3 engines | NCV47139 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right3 Base Model | View on Amazon |
| GSP Fits: 2.5L L4 | NCV47131 | 🇺🇸 US | Front RightAWD | View on Amazon |
| GSP Fits: 2.5L L4 | NCV47129 | 🇺🇸 US | Front RightFWD | View on Amazon |
| TOP NOTCH Fits: all 2020 3 engines | TN90117 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right3 Base Model | View on Amazon |
| TRAKMOTIVE Fits: 2.0L L4 | MZ86017 | 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86040 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear RightAutomatic trans. | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86041 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear LeftAutomatic trans. | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86023 | 🇺🇸 US | AARInboard Joint Boot Material: Thermoplastic | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86035 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86037 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86021 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86024 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86019 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightManual trans. | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 | MZ86036 | 🇺🇸 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.
22 CV Axle parts are listed for the 2020 Mazda 3, from TRAKMOTIVE, GSP and TOP NOTCH. GSP NCV47124 carries the "Popular" badge. 5 parts fit every engine; the other 17 are engine-specific.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 2.5L L4 | 1032941 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front OuterManual trans. | View on Amazon |
| BECK/ARNLEY Fits: 2.5L L4 | 1032892 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front OuterAutomatic trans. | View on Amazon |
| BECK/ARNLEY Fits: 2.5L L4 | 1032963 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front InnerAutomatic trans. | 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 the 3 CV Joint Boot parts for the 2020 Mazda 3.
Listed part numbers: BECK/ARNLEY 1032941, BECK/ARNLEY 1032892 and BECK/ARNLEY 1032963.
Gear Oil
SAE 75W-140
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.5L L4 | VV982 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 889787 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-14 0 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 887344 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | VV981 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil5 Gallon | View on Amazon |
SAE 75W-90
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.5L L4 | VV975 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | VV820 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 889785 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 882505 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 723856 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | VV822 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 75W-90 Gear Oil16 Gallon KEG | 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.
VALVOLINE supplies the 10 Gear Oil parts for the 2020 Mazda 3. VALVOLINE VV982 carries the "Popular" badge.
In the SAE 75W-140 grade, VALVOLINE supplies 4 parts: grouped under the catalog's "SAE 75W-140" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV982.
In the SAE 75W-90 grade, VALVOLINE supplies 6 parts: grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV975.
Transfer Case Fluid
SAE 75W-140
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.5L L4 | VV982 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 889787 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-14 0 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 887344 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | VV981 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil5 Gallon | View on Amazon |
SAE 75W-90
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.5L L4 | VV975 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | VV820 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 889785 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 882505 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 723856 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | VV822 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 75W-90 Gear Oil16 Gallon KEG | View on Amazon |
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.
VALVOLINE supplies the 10 Transfer Case Fluid parts for the 2020 Mazda 3. VALVOLINE VV982 carries the "Popular" badge.
SAE 75W-140: 4 parts, from VALVOLINE. A representative part number is VALVOLINE VV982.
SAE 75W-90: 6 parts, from VALVOLINE. A representative part number is VALVOLINE VV975.
Buying Drivetrain Parts for a 2020 Mazda 3
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Some drivetrain 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 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: CV Axle and Gear Oil .
Frequently Asked Questions
How many drivetrain parts fit the 2020 Mazda 3?
Our catalog currently lists 46 drivetrain parts for the 2020 Mazda 3 across 5 subcategories and 6 brands, covering both the 2.0L L4 and the 2.5L L4. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2020 Mazda 3 engines?
Some do. 6 parts fit every engine; the other 40 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 drivetrain problems on a 2020 Mazda 3?
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 2020 Mazda 3 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 2020 Mazda 3?
First match the engine — each row shows which engine(s) the part fits. 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 2020 Mazda 3
Drivetrain Parts for Other Mazda 3 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.