53 Engine parts are listed for the 2026 Mazda CX-50, in 4 part types, covering both the 2.5L L4 and the 2.5L L4 ELECTRIC/GAS. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2026 Mazda CX-50, 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. 52 parts of the 53 listed are Oil (35 parts), Oil Filter (15 parts) and Oil Filler Cap (2 parts). The other 1 part type covers the remaining 1 part.
The 2026 Mazda CX-50 was sold with both the 2.5L L4 and the 2.5L L4 ELECTRIC/GAS. 3 parts fit every engine; the other 50 are engine-specific. Each part shows which engine(s) it fits.
12 brands supply engine parts for the 2026 Mazda CX-50, led by IDEMITSU (14 parts), VALVOLINE (13 parts) and MOBIL (10 parts), plus 9 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-50. 12 parts have it, including IDEMITSU 30015203750 (Oil) and VARIOUS MFR PG4476 (Oil Filter). Each part number opens a page with every vehicle that part fits.
Oil
Summary: Notes list SAE 0W-16, SAE 0W-20, SAE 5W-20 and SAE 5W-30. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include IDEMITSU, VALVOLINE and MOBIL.
Full Synthetic
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Popular Fits: all 2026 CX-50 engines | 30015203750 | 🇺🇸 US | IFG3 0W-20 SP/Motor Oil1 Quart | View on Amazon |
| MOBIL Popular Fits: 2.5L L4 | 124184 | 🇺🇸 US | 0W-20Mobil 1 Advanced Fuel Economy | View on Amazon |
| MOBIL Popular Fits: 2.5L L4 | 125197 | 🇺🇸 US | Full Synthetic 0W-20Mobil Full Synthetic | View on Amazon |
| MOBIL Popular Fits: 2.5L L4 ELECTRIC/GAS | 124321 | 🇺🇸 US | 0W-16Mobil 1 Advanced Fuel Economy | View on Amazon |
| VALVOLINE Popular Fits: 2.5L L4 | VV916 | 🇺🇸 US | Advanced Protection Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Popular Fits: 2.5L L4 ELECTRIC/GAS | 878400 | 🇺🇸 US | Advanced Protection Full Synthetic SAE 0W-16Easy Pour 1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 2.5L L4 ELECTRIC/GAS | 878399 | 🇺🇸 US | Advanced Protection Full Synthetic SAE 0W-16Easy Pour 5 Quart | View on Amazon |
| IDEMITSU Fits: all 2026 CX-50 engines | 30016051750 | 🇺🇸 US | IFG3 0W-20 SQ/GF-7A1 Quart | View on Amazon |
| IDEMITSU Fits: all 2026 CX-50 engines | 30016051953 | 🇺🇸 US | IFG3 0W-20 SQ/GF-7A5 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30015204750 | 🇺🇸 US | IFG3 5W-30 SP/Motor Oil1 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30015229750 | 🇺🇸 US | IFG3 5W-20 SP/Motor Oil1 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30016050750 | 🇺🇸 US | IFG3 0W-16 SQ/GF-7B1 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30016052750 | 🇺🇸 US | IFG3 5W-30 SQ/GF-7A1 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30016054750 | 🇺🇸 US | IFG3 5W-20 SQ/GF-7A1 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30015229953 | 🇺🇸 US | IFG3 5W-20 SP/Motor Oil5 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30016050953 | 🇺🇸 US | IFG3 0W-16 SQ/GF-7B5 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30016052953 | 🇺🇸 US | IFG3 5W-30 SQ/GF-7A5 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30016054953 | 🇺🇸 US | IFG3 5W-20 SQ/GF-7A5 Quart | View on Amazon |
| MOBIL Fits: 2.5L L4 | 120926 | 🇺🇸 US | Extended Performance 0W-20Mobil 1 Extended Performance | View on Amazon |
| MOBIL Fits: 2.5L L4 | 124592 | 🇺🇸 US | Truck & SUV 0W-20Mobil 1 Truck & SUV | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 891682 | 🇺🇸 US | Extended Protection Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 904536 | 🇺🇸 US | Restore & Protect Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 904538 | 🇺🇸 US | Restore & Protect Full Synthetic SAE 0W-205 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 881150 | 🇺🇸 US | Advanced Protection Full Synthetic SAE 0W-20Easy Pour 5 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 898664 | 🇺🇸 US | Hybrid Vehicle Full Synthetic SAE 0W-205 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 ELECTRIC/GAS | 886758 | 🇺🇸 US | Advanced Protection Full Synthetic SAE 0W-165 Gallon Bay Box | View on Amazon |
High Mileage (>75,000 Miles)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 2.5L L4 | 125203 | 🇺🇸 US | Full Synthetic High Mileage 0W-20Mobil Full Synthetic | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30015121750 | 🇺🇸 US | IFG5 0W-16 SP/GF-6B1 Quart | View on Amazon |
| MOBIL Fits: 2.5L L4 | 122535 | 🇺🇸 US | High Mileage 0W-20Mobil 1 High Mileage | View on Amazon |
| MOBIL Fits: 2.5L L4 | 123836 | 🇺🇸 US | Extended Performance High Mileage 0W-20Extended Performance High Mileage Synthetic Motor Oil 0W-20, 1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 833002 | 🇺🇸 US | Max Life High Mileage SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 852400 | 🇺🇸 US | Full Synthetic High Mileage with Max Life Technology SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 881149 | 🇺🇸 US | Max Life High Mileage SAE 0W-20Easy Pour 5 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 | 881168 | 🇺🇸 US | Full Synthetic High Mileage with Max Life Technology SAE 0W-20Easy Pour 5 Quart | View on Amazon |
Racing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS | 30018100750 | 🇺🇸 US | 10W30 Rotary Racing Oil1 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.
35 Oil parts for the 2026 Mazda CX-50 come from 3 brands — IDEMITSU, VALVOLINE and MOBIL. The "Popular" part is IDEMITSU 30015203750. They are grouped as Full Synthetic, High Mileage (>75,000 Miles) and Racing, with Full Synthetic the largest group at 26 parts from IDEMITSU, VALVOLINE and MOBIL.
Oil Filler Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT Fits: 2.5L L4 | OC2330 | 🇺🇸 US | PlasticTwist-On | View on Amazon |
| MOTORAD Fits: 2.5L L4 | MO147 | 🇺🇸 US | View on Amazon |
This table covers the caps on the oil filler neck.
2 Oil Filler Cap parts for the 2026 Mazda CX-50 come from 2 brands — CALORSTAT and MOTORAD.
Listed part numbers: CALORSTAT OC2330 and MOTORAD MO147.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Popular Fits: 2.5L L4 ELECTRIC/GAS | PG4476 | 🇺🇸 US | Spin-On | View on Amazon |
| BOSCH Fits: 2.5L L4 | 72230WS | 🇺🇸 US | Workshop Oil Filter | View on Amazon |
| CHAMP / LUBER-FINER Fits: 2.5L L4 | PH2876 | 🇺🇸 US | Inside Diameter: M20 X 1.5 Thread. | View on Amazon |
| FVP Fits: 2.5L L4 | R7002 | 🇺🇸 US | OE# 1WPE14302 | View on Amazon |
| FVP Fits: 2.5L L4 ELECTRIC/GAS | R0332 | 🇺🇸 US | Original Equipment (OE) Part Number CWA114302 | View on Amazon |
| PRO-TEC Fits: 2.5L L4 | PXL57002 | 🇺🇸 US | View on Amazon | |
| PRO-TEC Fits: 2.5L L4 ELECTRIC/GAS | PXL10332 | 🇺🇸 US | View on Amazon | |
| VARIOUS MFR Fits: 2.5L L4 | PG4612 | 🇺🇸 US | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 2.5L L4 | M1108A | 🇺🇸 US | Extended Performance | View on Amazon |
| MOBIL Popular Fits: 2.5L L4 ELECTRIC/GAS | M1103A | 🇺🇸 US | Extended Performance | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: 2.5L L4 | 3300 | 🇺🇸 US | Premium Oil Filter | View on Amazon |
| VARIOUS MFR Fits: 2.5L L4 | PG4612EX | 🇺🇸 US | Extended Life | View on Amazon |
| VARIOUS MFR Fits: 2.5L L4 ELECTRIC/GAS | PG4476EX | 🇺🇸 US | Extended LifeSpin-On | View on Amazon |
| WIX Fits: 2.5L L4 | 57002 | 🇺🇸 US | View on Amazon | |
| WIX Fits: 2.5L L4 ELECTRIC/GAS | WL10332 | 🇺🇸 US | 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.
15 Oil Filter parts for the 2026 Mazda CX-50 come from 7 brands — VARIOUS MFR, BOSCH, FVP and 4 other brands. The "Popular" part is VARIOUS MFR PG4476.
The Economy section lists 8 options from VARIOUS MFR, FVP, PRO-TEC and 2 other brands — the catalog's value-priced group. VARIOUS MFR PG4476 is listed in this group.
The High Performance / Heavy Duty section lists 2 options 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, VARIOUS MFR, WIX and BOSCH supply 5 parts: built to original-equipment specification. A representative part number is BOSCH 3300.
Timing Chain & Component Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| INA Fits: 2.5L L4 | ZC76342T | 🇺🇸 US | Includes 1 Chain, 1 Crank Sprocket, 2 Guides, 1 Tensioner Arm, 1 TensionerDoes Not Include Cam Sprocket | View on Amazon |
This table covers kits that group a timing chain with the related tensioners and guides.
This group shows a single part: INA ZC76342T.
Buying Engine Parts for a 2026 Mazda CX-50
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. Some engine 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 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-50?
Our catalog currently lists 53 engine parts for the 2026 Mazda CX-50 across 4 subcategories and 12 brands, covering both the 2.5L L4 and the 2.5L L4 ELECTRIC/GAS. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2026 Mazda CX-50 engines?
Some do. 3 parts fit every engine; the other 50 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 engine problems on a 2026 Mazda CX-50?
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-50?
Oil rows on this page include SAE 0W-16, SAE 0W-20, SAE 5W-20 and 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-50 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-50?
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 2026 Mazda CX-50
Engine Parts for Other Mazda CX-50 Years
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