44 Engine parts are listed for the 2026 Mazda CX-30, in 11 part types, covering the 2.5L L4 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2026 Mazda CX-30, 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. 33 parts of the 44 listed are Oil (25 parts), Oil Filter (5 parts) and Timing Chain & Component Kit (3 parts). The other 8 part types cover the remaining 11 parts.
The 2026 Mazda CX-30 came with a single engine, the 2.5L L4 Turbocharged, and every part is verified against it.
11 brands supply engine parts for the 2026 Mazda CX-30, led by VALVOLINE (12 parts), MELLING (11 parts) and MOBIL (9 parts), plus 8 more brands. Quality grades include Economy, Standard Replacement and High Performance / Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 Mazda CX-30. 6 parts have it, including MOBIL 125195 (Oil) and MOBIL M1108A (Oil Filter). Each part number opens a page with every vehicle that part fits.
Balance Shaft Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | S1246 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Balance Shaft sprockets.
One part is listed for the 2026 Mazda CX-30 — MELLING S1246.
Oil
Summary: Notes list SAE 5W-30. Confirm the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE, MOBIL and IDEMITSU.
Full Synthetic
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular | 125195 | 🇺🇸 US 🇨🇦 CA | Full Synthetic 5W-30Mobil Full Synthetic | View on Amazon |
| MOBIL Popular | 124315 | 🇺🇸 US 🇨🇦 CA | 5W-30Mobil 1 Advanced | View on Amazon |
| VALVOLINE Popular | VV955 | 🇺🇸 US 🇨🇦 CA | Advanced Protection Full Synthetic SAE 5W-301 Quart | View on Amazon |
| IDEMITSU | 30015204750 | 🇺🇸 US | IFG3 5W-30 SP/Motor Oil1 Quart | View on Amazon |
| IDEMITSU | 30016052750 | 🇺🇸 US | IFG3 5W-30 SQ/GF-7A1 Quart | View on Amazon |
| IDEMITSU | 30016052953 | 🇺🇸 US | IFG3 5W-30 SQ/GF-7A5 Quart | View on Amazon |
| MOBIL | 112627 | 🇺🇸 US 🇨🇦 CA | Extended Performance 5W-30Mobil 1 Extended Performance | View on Amazon |
| MOBIL | 124595 | 🇺🇸 US 🇨🇦 CA | Truck & SUV 5W-30Mobil 1 Truck & SUV | View on Amazon |
| PENTOSIN | 8044214 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5W-30-Pentospeed-DEXOS1 GEN31 Liter | View on Amazon |
| PENTOSIN | 8044216 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5W-30-Pentospeed-DEXOS1 GEN35 Liters | View on Amazon |
| VALVOLINE | 891678 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic SAE 5W-301 Quart | View on Amazon |
| VALVOLINE | 904564 | 🇺🇸 US 🇨🇦 CA | Restore & Protect Full Synthetic SAE 5W-301 Quart | View on Amazon |
| VALVOLINE | 891670 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic SAE 5W-30Easy Pour 5 Quart | View on Amazon |
| VALVOLINE | 904566 | 🇺🇸 US 🇨🇦 CA | Restore & Protect Full Synthetic SAE 5W-305 Quart | View on Amazon |
| VALVOLINE | 881164 | 🇺🇸 US 🇨🇦 CA | Advanced Protection Full Synthetic SAE 5W-30Easy Pour 5 Quart | View on Amazon |
High Mileage (>75,000 Miles)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | VV1556 | 🇺🇸 US 🇨🇦 CA | Max Life High Mileage Synthetic Blend SAE 5W-301 Quart | View on Amazon |
| MOBIL | 125201 | 🇺🇸 US 🇨🇦 CA | Full Synthetic High Mileage 5W-301 Quart | View on Amazon |
| MOBIL | 103767 | 🇺🇸 US 🇨🇦 CA | High Mileage 5W-30Mobil 1 High Mileage | View on Amazon |
| MOBIL | 123842 | 🇺🇸 US 🇨🇦 CA | Extended Performance High Mileage 5W-30Synthetic | View on Amazon |
| VALVOLINE | VV179 | 🇺🇸 US 🇨🇦 CA | Full Synthetic High Mileage with Max Life Technology SAE 5W-301 Quart | View on Amazon |
| VALVOLINE | 881163 | 🇺🇸 US 🇨🇦 CA | Max Life High Mileage Synthetic Blend SAE 5W-30Easy Pour 5 Quart | View on Amazon |
| VALVOLINE | 881169 | 🇺🇸 US 🇨🇦 CA | Full Synthetic High Mileage with Max Life Technology SAE 5W-30Easy Pour 5 Quart | View on Amazon |
Synthetic Blend
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular | 124407 | 🇺🇸 US 🇨🇦 CA | Super 5W-30Mobil Super | View on Amazon |
| VALVOLINE | 797975 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 5W-30 Synthetic Blend1 Quart | View on Amazon |
| VALVOLINE | 881159 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 5W-30 Synthetic BlendEasy 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.
25 Oil parts for the 2026 Mazda CX-30 come from 4 brands — VALVOLINE, MOBIL, IDEMITSU and 1 other brand. The "Popular" part is MOBIL 125195.
The Full Synthetic section lists 15 options from VALVOLINE, MOBIL, IDEMITSU and 1 other brand — full-synthetic oils. MOBIL 125195 is listed in this group.
In the High Mileage (>75,000 Miles) grade, VALVOLINE and MOBIL supply 7 parts: oils grouped for high-mileage engines. A representative part number is VALVOLINE VV1556.
The Synthetic Blend section lists 3 options from VALVOLINE and MOBIL — synthetic-blend oils. MOBIL 124407 is listed in this group.
Oil Filler Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | OC2330 | 🇺🇸 US | PlasticTwist-On | View on Amazon |
This table covers the caps on the oil filler neck.
This group shows a single part: CALORSTAT OC2330.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMP / LUBER-FINER | PH2876 | 🇺🇸 US 🇲🇽 MX | Inside Diameter: M20 X 1.5 Thread. | View on Amazon |
| VARIOUS MFR | PG4612 | 🇺🇸 US 🇲🇽 MX | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular | M1108A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Performance | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PF1237B | 🇺🇸 US 🇨🇦 CA | Silver | View on Amazon |
| VARIOUS MFR | PG4612EX | 🇺🇸 US 🇲🇽 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.
5 Oil Filter parts for the 2026 Mazda CX-30 come from 4 brands — VARIOUS MFR, CHAMP / LUBER-FINER, MOBIL and 1 other brand. The "Popular" part is MOBIL M1108A.
The Economy section lists 2 options from CHAMP / LUBER-FINER and VARIOUS MFR — the catalog's value-priced group. CHAMP / LUBER-FINER PH2876 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 M1108A is listed in this group.
In the Standard Replacement grade, ACDELCO and VARIOUS MFR supply 2 parts: built to original-equipment specification. A representative part number is ACDELCO PF1237B.
Listed part numbers: MOBIL M1108A, CHAMP / LUBER-FINER PH2876 and VARIOUS MFR PG4612, plus the other parts above.
Oil Pump Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | S1248 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Oil Pump sprockets.
One part is listed for the 2026 Mazda CX-30 — MELLING S1248.
Piston Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS MANUFACTURING | 2P6029 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full SetFor 2 Ring Piston | View on Amazon |
This table covers the rings that seal each piston to the cylinder wall.
One part is listed for the 2026 Mazda CX-30 — HASTINGS MANUFACTURING 2P6029.
Timing Chain
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | 1065 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the timing chains that keep the cams in time with the crank.
One part is listed for the 2026 Mazda CX-30 — MELLING 1065.
Timing Chain & Component Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| INA | ZC76342T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 1 Chain, 1 Crank Sprocket, 2 Guides, 1 Tensioner Arm, 1 TensionerDoes Not Include Cam Sprocket | View on Amazon |
| MELLING | 31065SX | 🇺🇸 US 🇨🇦 CA | Does Not Include SprocketsOil pump drive components Not Included | View on Amazon |
| MELLING | 31065S | 🇺🇸 US 🇨🇦 CA | Oil pump drive components Not Included | View on Amazon |
This table covers kits that group a timing chain with the related tensioners and guides.
3 Timing Chain & Component Kit parts for the 2026 Mazda CX-30 come from 2 brands — MELLING and INA.
Listed part numbers: INA ZC76342T, MELLING 31065SX and MELLING 31065S.
Timing Chain Guide / Damper
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | BT7027 | 🇺🇸 US 🇨🇦 CA | Tensioner Arm | View on Amazon |
| MELLING | BG7029 | 🇺🇸 US 🇨🇦 CA | Lower | View on Amazon |
| MELLING | BG7030 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
This table covers the guides and dampers that keep the timing chain on its path.
MELLING supplies the 3 Timing Chain Guide / Damper parts for the 2026 Mazda CX-30.
Part numbers include MELLING BT7027, MELLING BG7029 and MELLING BG7030.
Timing Chain Tensioner
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | BT7029 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the tensioners that keep the timing chain taut. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage.
This group shows a single part: MELLING BT7029.
Timing Crank Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | S1245 | 🇺🇸 US 🇨🇦 CA | Outer | View on Amazon |
| MELLING | S1247 | 🇺🇸 US 🇨🇦 CA | Inner | View on Amazon |
This table covers the crankshaft sprockets that drive the timing chain or belt.
2 Timing Crank Sprocket parts for the 2026 Mazda CX-30 come from MELLING.
Listed part numbers: MELLING S1245 and MELLING S1247.
Buying Engine Parts for a 2026 Mazda CX-30
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.
- Confirm you have the 2.5L L4 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 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: Oil and Oil Filter .
Frequently Asked Questions
How many engine parts fit the 2026 Mazda CX-30?
Our catalog currently lists 44 engine parts for the 2026 Mazda CX-30 across 11 subcategories and 11 brands, covering the 2.5L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 2026 Mazda CX-30?
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 2026 Mazda CX-30?
Oil rows on this page include SAE 5W-30. 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 2026 Mazda CX-30 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 2026 Mazda CX-30?
Every part on this page is matched to the 2.5L L4 Turbocharged engine. 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 2026 Mazda CX-30
Engine Parts for Other Mazda CX-30 Years
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