This page lists 18 engine parts for the 2021 MG HS, across 13 part types, covering both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 MG HS, 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. 6 parts of the 18 listed are Crankshaft Seal (2 parts), Intake Manifold Gasket (2 parts) and Oil Filter (2 parts). The other 10 part types cover the remaining 12 parts.
The 2021 MG HS was sold with both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
3 brands supply engine parts for the 2021 MG HS, led by AJUSA (16 parts), VARIOUS MFR (1 part) and ACDELCO (1 part). Quality grades include Economy and Standard Replacement.
Each part number listed for the 2021 MG HS opens a page with every vehicle that part fits.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 54347000 | 🇲🇽 MX | 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 2021 MG HS — AJUSA 54347000.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 15083600 | 🇲🇽 MX | FrontClockwise | View on Amazon |
| AJUSA Fits: 2.0L L4 Turbocharged | 71017600 | 🇲🇽 MX | Rear96 X 113 X 12.4 | 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 2021 MG HS come from AJUSA.
Part numbers include AJUSA 15083600 and AJUSA 71017600.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 81090000 | 🇲🇽 MX | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
One part is listed for the 2021 MG HS — AJUSA 81090000.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 10280800 | 🇲🇽 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 2021 MG HS — AJUSA 10280800.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 52681000 | 🇲🇽 MX | 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 2021 MG HS — AJUSA 52681000.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 50602200 | 🇲🇽 MX | 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 2021 MG HS — AJUSA 50602200.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 13356800 | 🇲🇽 MX | Upper | View on Amazon |
| AJUSA Fits: 2.0L L4 Turbocharged | 13356900 | 🇲🇽 MX | Lower | 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.
AJUSA supplies both parts for the 2021 MG HS.
This group includes AJUSA 13356800 and AJUSA 13356900.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 22007400 | 🇲🇽 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.
One part is listed for the 2021 MG HS — AJUSA 22007400.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 1.5L L4 Turbocharged | UPG64R | 🇲🇽 MX | Standard LifeFilter Media Material: Enhanced Cellulose | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 1.5L L4 Turbocharged | PF64 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentM22 Thread | 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.
2 Oil Filter parts for the 2021 MG HS come from 2 brands — VARIOUS MFR and ACDELCO.
The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR UPG64R is listed in this group.
In the Standard Replacement grade, ACDELCO supplies 1 part: built to original-equipment specification. A representative part number is ACDELCO PF64.
Part numbers include VARIOUS MFR UPG64R and ACDELCO PF64.
Turbocharger Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | JTC12863 | 🇲🇽 MX | Mounting Gasket Set | 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.
One part is listed for the 2021 MG HS — AJUSA JTC12863.
Turbocharger Oil Line
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | OP11445 | 🇲🇽 MX | Supply tube | View on Amazon |
| AJUSA Fits: 2.0L L4 Turbocharged | OPR00179 | 🇲🇽 MX | Return Line | 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.
2 Turbocharger Oil Line parts for the 2021 MG HS come from AJUSA.
This group includes AJUSA OP11445 and AJUSA OPR00179.
Valve Lifter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 85026400 | 🇲🇽 MX | View on Amazon |
This table covers the lifters / tappets that transfer cam motion to the valves.
This group shows a single part: AJUSA 85026400.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.0L L4 Turbocharged | 12050800 | 🇲🇽 MX | 4.8 X 10.8 X 22.6 | View on Amazon |
| AJUSA Fits: 2.0L L4 Turbocharged | 57099700 | 🇲🇽 MX | 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.
2 Valve Stem Seal parts for the 2021 MG HS come from AJUSA.
Listed part numbers: AJUSA 12050800 and AJUSA 57099700.
Buying Engine Parts for a 2021 MG HS
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 Intake Manifold Gasket .
Frequently Asked Questions
How many engine parts fit the 2021 MG HS?
Our catalog currently lists 18 engine parts for the 2021 MG HS across 13 subcategories and 3 brands, covering both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2021 MG HS 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 2021 MG HS?
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 2021 MG HS 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 2021 MG HS?
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 2021 MG HS
Engine Parts for Other MG HS Years
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