36 Engine parts are listed for the 2018 BMW 118I, in 21 part types, covering the 1.5L L3 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The engine on the 2018 BMW 118I 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 Oil Filter (8 parts), Turbocharger Gasket (3 parts) and Valve Stem Seal (3 parts). The other 18 part types cover the remaining 22 parts.
The 2018 BMW 118I came with a single engine, the 1.5L L3 Turbocharged, and every part is verified against it.
13 brands supply engine parts for the 2018 BMW 118I, led by AJUSA (19 parts), DORMAN (4 parts) and WIX (2 parts), plus 10 more brands. Quality grades include Standard Replacement, Economy and High Performance / Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 BMW 118I. 2 parts have it, including MAHLE / CLEVITE OX8132D (Oil Filter) and MANN HU60141Z (Oil Filter). Each part number opens a page with every vehicle that part fits.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 54263400 | 🇲🇽 MX | Engine # B38B15A | 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 2018 BMW 118I — AJUSA 54263400.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 15107900 | 🇲🇽 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.
This group shows a single part: AJUSA 15107900.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 81064700 | 🇲🇽 MX | Engine # B38B15A | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
One part is listed for the 2018 BMW 118I — AJUSA 81064700.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 10220800 | 🇲🇽 MX | Multi Layered Steel | View on Amazon |
| AJUSA | 10220810 | 🇲🇽 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.
AJUSA supplies both parts for the 2018 BMW 118I.
Listed part numbers: AJUSA 10220800 and AJUSA 10220810.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 52438500 | 🇲🇽 MX | Engine # B38B15A | 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 2018 BMW 118I — AJUSA 52438500.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 50452800 | 🇲🇽 MX | Engine # B38B15A | 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 2018 BMW 118I — AJUSA 50452800.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 24039500 | 🇲🇽 MX | Engine # B38B15A | 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 2018 BMW 118I — AJUSA 24039500.
Oil Cooler Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 77005900 | 🇲🇽 MX | UpperEngine # B38B15A | View on Amazon |
| AJUSA | 77006000 | 🇲🇽 MX | LowerEngine # B38B15A | View on Amazon |
This table covers the gaskets that seal the Oil Cooler. 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.
AJUSA supplies both parts for the 2018 BMW 118I.
Listed part numbers: AJUSA 77005900 and AJUSA 77006000.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGS | ODP00010 | 🇲🇽 MX | M12x1.50 | View on Amazon |
| DORMAN | 090088 | 🇲🇽 MX | MetalStandard | View on Amazon |
This table covers the drain plugs in the oil pan.
2 Oil Drain Plug parts for the 2018 BMW 118I come from 2 brands — AGS and DORMAN.
Listed part numbers: AGS ODP00010 and DORMAN 090088.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 21010400 | 🇲🇽 MX | Engine # B38B15Awith Original Equipment (OE) # 7119963132 | 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.
One part is listed for the 2018 BMW 118I — AJUSA 21010400.
Oil Filler Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | MO156 | 🇲🇽 MX | View on Amazon |
This table covers the caps on the oil filler neck.
This group shows a single part: MOTORAD MO156.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | G0358 | 🇲🇽 MX | View on Amazon | |
| PRO-TEC | PXL10358 | 🇲🇽 MX | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL | M1C354A | 🇲🇽 MX | Extended Performance | View on Amazon |
| WIX | WL10358XP | 🇲🇽 MX | XP Extreme DutyBest for Synthetic Motor Oils | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Popular | OX8132D | 🇲🇽 MX | Cartridge | View on Amazon |
| MANN Popular | HU60141Z | 🇲🇽 MX | View on Amazon | |
| VARIOUS MFR | PO99460EX | 🇲🇽 MX | Extended Life | View on Amazon |
| WIX | WL10358 | 🇲🇽 MX | 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.
8 Oil Filter parts for the 2018 BMW 118I come from 7 brands — WIX, FVP, PRO-TEC and 4 other brands. The "Popular" part is MAHLE / CLEVITE OX8132D.
The Economy section lists 2 options from FVP and PRO-TEC — the catalog's value-priced group. FVP G0358 is listed in this group.
The High Performance / Heavy Duty section lists 2 options from MOBIL and WIX — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1C354A is listed in this group.
In the Standard Replacement grade, MAHLE / CLEVITE, MANN, VARIOUS MFR and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is MAHLE / CLEVITE OX8132D.
This group includes MAHLE / CLEVITE OX8132D, FVP G0358 and PRO-TEC PXL10358 and the remaining parts above.
Oil Filter Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 921115 | 🇲🇽 MX | View on Amazon | |
| SKP | SK921115 | 🇲🇽 MX | View on Amazon |
This table covers the Oil Filter covers.
2 Oil Filter Cover parts are listed for the 2018 BMW 118I, from DORMAN and SKP.
This group includes DORMAN 921115 and SKP SK921115.
Oil Filter Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 926434 | 🇲🇽 MX | OE FixComplete Assembly | View on Amazon |
This table covers the Oil Filter housings.
One part is listed for the 2018 BMW 118I — DORMAN 926434.
Turbocharger Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | JTC11989 | 🇲🇽 MX | Mounting Gasket Set | View on Amazon |
| ELRING | 094830 | 🇲🇽 MX | Charge Air Hose | View on Amazon |
| ELRING | 087320 | 🇲🇽 MX | View on Amazon |
This table covers the gaskets that seal the Turbocharger. 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 Turbocharger Gasket parts are listed for the 2018 BMW 118I, from ELRING and AJUSA.
Part numbers include AJUSA JTC11989, ELRING 094830 and ELRING 087320.
Turbocharger Oil Line
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | OP10929 | 🇲🇽 MX | Engine # B38B15ASupply Tube | View on Amazon |
This table covers the Turbocharger Oil lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early.
This group shows a single part: AJUSA OP10929.
Turbocharger Oil Line Gasket / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 16006101 | 🇲🇽 MX | Turbocharger Coolant Line O-Ring | View on Amazon |
This table covers the Turbocharger Oil Line Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
This group shows a single part: AJUSA 16006101.
Valve Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 264758 | 🇲🇽 MX | View on Amazon |
This table covers the Valve covers.
One part is listed for the 2018 BMW 118I — DORMAN 264758.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 11140200 | 🇲🇽 MX | Engine # B38B15A | 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 11140200.
Valve Lifter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 85022300 | 🇲🇽 MX | Engine # B38B15A | View on Amazon |
This table covers the lifters / tappets that transfer cam motion to the valves.
This group shows a single part: AJUSA 85022300.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 12027900 | 🇲🇽 MX | Intake4.5 x 9.8 x 21.5 | View on Amazon |
| AJUSA | 12028200 | 🇲🇽 MX | Exhaust5.2 x 9.8 x 21.15 | View on Amazon |
| AJUSA | 57073800 | 🇲🇽 MX | Engine # B38B15A | 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 2018 BMW 118I come from AJUSA.
Listed part numbers: AJUSA 12027900, AJUSA 12028200 and AJUSA 57073800.
Buying Engine Parts for a 2018 BMW 118I
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 1.5L L3 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 Filter and Turbocharger Gasket .
Frequently Asked Questions
How many engine parts fit the 2018 BMW 118I?
Our catalog currently lists 36 engine parts for the 2018 BMW 118I across 21 subcategories and 13 brands, covering the 1.5L L3 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 2018 BMW 118I?
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 2018 BMW 118I 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 2018 BMW 118I?
Every part on this page is matched to the 1.5L L3 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 2018 BMW 118I
Engine Parts for Other BMW 118I Years
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