This page lists 18 engine parts for the 2022 Mazda 3, across 8 part types, covering all 3 engine options (2.0L L4, 2.5L L4 and 2.5L L4 Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.
The engine on the 2022 Mazda 3 covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Crankshaft Seal (4 parts), Cylinder Head Bolt (3 parts) and Cylinder Head Gasket (3 parts). The other 5 part types cover the remaining 8 parts.
The 2022 Mazda 3 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
7 brands supply engine parts for the 2022 Mazda 3, led by TOPLINE (6 parts), AJUSA (6 parts) and FEL-PRO (2 parts), plus 4 more brands.
Each part number listed for the 2022 Mazda 3 opens a page with every vehicle that part fits.
Barometric Pressure Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | AS486 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Base Model | View on Amazon |
This table covers the Barometric pressure sensors. Typical signs include a check-engine light for MAP or fuel-rail pressure, or a limp mode under load. A vacuum leak or a clogged reference line will fake a bad pressure sensor.
One part is listed for the 2022 Mazda 3 — STANDARD MOTOR PRODUCTS AS486.
Connecting Rod Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOPLINE Fits: 2.0L L4 | RBMA32 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Set | View on Amazon |
This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
One part is listed for the 2022 Mazda 3 — TOPLINE RBMA32.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 54316900 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine PEXP | View on Amazon |
| TOPLINE Fits: 2.0L L4 | CBSMA32 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Base Model | View on Amazon |
This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
2 Conversion / Lower Gasket Set parts are listed for the 2022 Mazda 3, from AJUSA and TOPLINE.
This group includes AJUSA 54316900 and TOPLINE CBSMA32.
Crankshaft Main Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOPLINE Fits: 2.0L L4 | MBMA32 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Set | View on Amazon |
| TOPLINE Fits: 2.0L L4 | TWMA32 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Base ModelThrust Bearing | View on Amazon |
This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
2 Crankshaft Main Bearing parts for the 2022 Mazda 3 come from TOPLINE.
This group includes TOPLINE MBMA32 and TOPLINE TWMA32.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 15105400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front43 x 55.5 x 6 | View on Amazon |
| AJUSA Fits: 2.0L L4 | 15105500 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RearCounter Clockwise | View on Amazon |
| SKF Fits: 2.0L L4 | 32432A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear3 Base Model | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.0L L4 | WS32432A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear3 Base Model | View on Amazon |
This table covers the front and rear seals that keep oil in at the crankshaft. 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.
4 Crankshaft Seal parts for the 2022 Mazda 3 come from 3 brands — AJUSA, SKF and WJB / INMOTION PARTS.
Part numbers include AJUSA 15105400, AJUSA 15105500 and SKF 32432A, among others listed above.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 81035200 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine # PEXP | View on Amazon |
| FEL-PRO Fits: 2.0L L4 | ES73903 | 🇺🇸 US | Set | View on Amazon |
| TOPLINE Fits: 2.0L L4 | HBMA25 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Set | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
3 Cylinder Head Bolt parts are listed for the 2022 Mazda 3, from AJUSA, FEL-PRO and TOPLINE.
Part numbers include AJUSA 81035200, FEL-PRO ES73903 and TOPLINE HBMA25.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 10215400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi Layered Steel | View on Amazon |
| FEL-PRO Fits: 2.0L L4 | 26830PT | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Base Model | View on Amazon |
| MAHLE / CLEVITE Fits: 2.0L L4 | 55449 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Layered Steel | View on Amazon |
This table covers the head gaskets that seal the block to the cylinder head. 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.
3 Cylinder Head Gasket parts are listed for the 2022 Mazda 3, from AJUSA, FEL-PRO and MAHLE / CLEVITE.
Part numbers include AJUSA 10215400, FEL-PRO 26830PT and MAHLE / CLEVITE 55449.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 52403400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine # PEXP | View on Amazon |
| TOPLINE Fits: 2.0L L4 | HSMA32 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Valve Stem Seals | View on Amazon |
This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
2 Cylinder Head Gasket Set parts are listed for the 2022 Mazda 3, from AJUSA and TOPLINE.
Part numbers include AJUSA 52403400 and TOPLINE HSMA32.
Buying Engine Parts for a 2022 Mazda 3
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Every engine part here is 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 seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Crankshaft Seal and Cylinder Head Bolt .
Frequently Asked Questions
How many engine parts fit the 2022 Mazda 3?
Our catalog currently lists 18 engine parts for the 2022 Mazda 3 across 8 subcategories and 7 brands, covering all 3 engine options (2.0L L4, 2.5L L4 and 2.5L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do engine parts differ between 2022 Mazda 3 engines?
Yes. Every engine part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 engine problems on a 2022 Mazda 3?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. 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 seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
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 2022 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 2022 Mazda 3?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2022 Mazda 3
Engine Parts for Other Mazda 3 Years
Switch vehicle or jump to a subcategory
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.