This page lists 36 engine parts for the 2024 Mazda 3, across 19 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 2024 Mazda 3, 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. 14 parts of the 36 listed are Engine Cover (6 parts), Oil (5 parts) and Oil Drain Plug Gasket (3 parts). The other 16 part types cover the remaining 22 parts.
The 2024 Mazda 3 was sold with both the 2.0L L4 and the 2.5L L4. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
10 brands supply engine parts for the 2024 Mazda 3, led by AJUSA (14 parts), TECHPRO (5 parts) and VALVOLINE (5 parts), plus 7 more brands. Quality grades include Economy, High Performance / Heavy Duty and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2024 Mazda 3. 2 parts have it, including TECHPRO MA1228130 (Engine Cover) and VALVOLINE VV916 (Oil). Each part number opens a page with every vehicle that part fits.
Balance Shaft Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Fits: 2.5L L4 | S1246 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Base Model | View on Amazon |
This table covers the Balance Shaft sprockets.
One part is listed for the 2024 Mazda 3 — MELLING S1246.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 54316900 | 🇲🇽 MX | Engine PEXP | 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.
One part is listed for the 2024 Mazda 3 — AJUSA 54316900.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 15105400 | 🇲🇽 MX | Front43 x 55.5 x 6 | View on Amazon |
| AJUSA Fits: 2.0L L4 | 15105500 | 🇲🇽 MX | RearCounter Clockwise | 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.
2 Crankshaft Seal parts for the 2024 Mazda 3 come from AJUSA.
Part numbers include AJUSA 15105400 and AJUSA 15105500.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 81035200 | 🇲🇽 MX | Engine # PEXP | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
One part is listed for the 2024 Mazda 3 — AJUSA 81035200.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 10215400 | 🇲🇽 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.
One part is listed for the 2024 Mazda 3 — AJUSA 10215400.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 52403400 | 🇲🇽 MX | Engine # PEXP | 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.
One part is listed for the 2024 Mazda 3 — AJUSA 52403400.
Engine Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Popular Fits: 2.0L L4 | MA1228130 | 🇲🇽 MX | CAPA Certified | View on Amazon |
| TECHPRO Fits: 2.0L L4 | MA1228135 | 🇲🇽 MX | Right LowerFor vehicle built in Japan | View on Amazon |
| TECHPRO Fits: 2.0L L4 | MA1228131 | 🇲🇽 MX | LowerSedan | View on Amazon |
| TECHPRO Fits: 2.0L L4 | MA1228133 | 🇲🇽 MX | Fits LowerHatchback | View on Amazon |
| TECHPRO Fits: 2.0L L4 | MA1228136 | 🇲🇽 MX | Left LowerFor vehicle built in Japan | View on Amazon |
| VARIOUS MFR Fits: 2.0L L4 | MA1228133 | 🇲🇽 MX | Fits LowerHatchback | View on Amazon |
This table covers the Engine covers.
6 Engine Cover parts are listed for the 2024 Mazda 3, from TECHPRO and VARIOUS MFR. TECHPRO MA1228130 carries the "Popular" badge.
Part numbers include TECHPRO MA1228130, TECHPRO MA1228135 and TECHPRO MA1228131, among others listed above.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 50539600 | 🇲🇽 MX | Engine # PEXP | View on Amazon |
This table covers full gasket kits covering the joints opened in an engine rebuild. 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.
One part is listed for the 2024 Mazda 3 — AJUSA 50539600.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 13261100 | 🇲🇽 MX | Engine # PEXP | View on Amazon |
This table covers the gaskets between the intake manifold and 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.
One part is listed for the 2024 Mazda 3 — AJUSA 13261100.
Motor Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 2.0L L4 | 10203 | 🇲🇽 MX | RightHydraulic | View on Amazon |
| WESTAR Fits: 2.0L L4 | EM7523 | 🇲🇽 MX | RightComplete Unit | View on Amazon |
This table covers the mounts that hold the engine 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 Motor Mount parts for the 2024 Mazda 3 come from 2 brands — ANCHOR and WESTAR.
This group includes ANCHOR 10203 and WESTAR EM7523.
Motor Mount Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 2.0L L4 | 300907 | 🇲🇽 MX | Automatic trans.Complete Assembly | View on Amazon |
This table covers the Motor Mount kits.
This group shows a single part: ANCHOR 300907.
Oil
Summary: Notes list SAE 0W-20. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE.
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.0L L4 | VV916 | 🇲🇽 MX | Advanced Protection Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: 2.0L L4 | 891682 | 🇲🇽 MX | Extended Protection Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: 2.0L L4 | 904536 | 🇲🇽 MX | Restore & Protect Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: 2.0L L4 | 904538 | 🇲🇽 MX | Restore & Protect Full Synthetic SAE 0W-205 Quart | View on Amazon |
| VALVOLINE Fits: 2.0L L4 | 881150 | 🇲🇽 MX | Advanced Protection Full Synthetic SAE 0W-20Easy Pour 5 Quart | View on Amazon |
This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.
5 Oil parts for the 2024 Mazda 3 come from VALVOLINE. The "Popular" part is VALVOLINE VV916.
Listed part numbers: VALVOLINE VV916, VALVOLINE 891682 and VALVOLINE 904536, plus the other parts above.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 22007000 | 🇲🇽 MX | Engine PEXP | View on Amazon |
| DORMAN Fits: 2.0L L4 | 095147 | 🇲🇽 MX | SizeM14 | View on Amazon |
| DORMAN Fits: 2.0L L4 | 995147CD | 🇲🇽 MX | View on Amazon |
This table covers the crush washers and gaskets under the oil 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.
3 Oil Drain Plug Gasket parts are listed for the 2024 Mazda 3, from DORMAN and AJUSA.
Listed part numbers: AJUSA 22007000, DORMAN 095147 and DORMAN 995147CD.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 2.0L L4 | PG4612 | 🇲🇽 MX | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Fits: 2.0L L4 | M1110A | 🇲🇽 MX | Extended Performance | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 2.0L L4 | PG4612EX | 🇲🇽 MX | Extended Life | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
3 Oil Filter parts for the 2024 Mazda 3 come from 2 brands — VARIOUS MFR and MOBIL.
The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PG4612 is listed in this group.
The High Performance / Heavy Duty section lists 1 option from MOBIL — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1110A is listed in this group.
In the Standard Replacement grade, VARIOUS MFR supplies 1 part: built to original-equipment specification. A representative part number is VARIOUS MFR PG4612EX.
Listed part numbers: VARIOUS MFR PG4612, MOBIL M1110A and VARIOUS MFR PG4612EX.
Oil Level Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | FLS355 | 🇲🇽 MX | View on Amazon |
This table covers the Oil Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
This group shows a single part: STANDARD MOTOR PRODUCTS FLS355.
Torque Strut Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 2.0L L4 | 10212 | 🇲🇽 MX | Rear Lower | View on Amazon |
This table covers the Torque Strut mounts. 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.
One part is listed for the 2024 Mazda 3 — ANCHOR 10212.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 11137100 | 🇲🇽 MX | Engine # PEXP | View on Amazon |
This table covers the gaskets that seal the valve cover 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.
This group shows a single part: AJUSA 11137100.
Valve Lifter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 85009300 | 🇲🇽 MX | Engine PEXP | View on Amazon |
This table covers the lifters / tappets that transfer cam motion to the valves.
This group shows a single part: AJUSA 85009300.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 | 57070800 | 🇲🇽 MX | Engine # PEXP | View on Amazon |
| AJUSA Fits: 2.0L L4 | 12034400 | 🇲🇽 MX | Intake4.7 x 10.8 x 10.2 | View on Amazon |
| AJUSA Fits: 2.0L L4 | 12034500 | 🇲🇽 MX | Exhaust4.80 x 10.8 x 10.2 | View on Amazon |
This table covers the seals on each valve stem that control oil into the guides. 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.
3 Valve Stem Seal parts for the 2024 Mazda 3 come from AJUSA.
This group includes AJUSA 57070800, AJUSA 12034400 and AJUSA 12034500.
Buying Engine Parts for a 2024 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: Engine Cover and Oil .
Frequently Asked Questions
How many engine parts fit the 2024 Mazda 3?
Our catalog currently lists 36 engine parts for the 2024 Mazda 3 across 19 subcategories and 10 brands, covering both the 2.0L L4 and the 2.5L L4. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2024 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 2024 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 oil viscosity is listed for the 2024 Mazda 3?
Oil rows on this page include SAE 0W-20. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
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 2024 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 2024 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 2024 Mazda 3
Engine Parts for Other Mazda 3 Years
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