The 1958 MG Mga has 38 engine parts with verified fitment on this page — 16 part types and 13 brands, covering both the 1.5L L4 and the 1.6L L4. Each part includes a manufacturer part number and application notes.
On the 1958 MG Mga, 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. 15 parts of the 38 listed are Valve Cover Gasket (6 parts), Motor Mount (5 parts) and Cylinder Repair Sleeve (4 parts). The other 13 part types cover the remaining 23 parts.
The 1958 MG Mga was sold with both the 1.5L L4 and the 1.6L L4. 6 parts fit every engine; the other 32 are engine-specific. Each part shows which engine(s) it fits.
13 brands supply engine parts for the 1958 MG Mga, led by ITM ENGINE COMPONENTS (10 parts), AJUSA (9 parts) and MELLING (4 parts), plus 10 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1958 MG Mga. 1 part has it: FEL-PRO VS215091 (Valve Cover Gasket). Each part number opens a page with every vehicle that part fits.
Camshaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 1.5L L4 | DA2 | 🇺🇸 US | Standard | View on Amazon |
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | 3C4306 | 🇺🇸 US | (Size: Standard) | View on Amazon |
This table covers the Camshaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
2 Camshaft Bearing parts are listed for the 1958 MG Mga, from DURA-BOND and ITM ENGINE COMPONENTS.
This group includes DURA-BOND DA2 and ITM ENGINE COMPONENTS 3C4306.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 54032100 | 🇺🇸 US | 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 1958 MG Mga — AJUSA 54032100.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 10034600 | 🇺🇸 US | 78 Bore Diameter | 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 1958 MG Mga — AJUSA 10034600.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 52055900 | 🇺🇸 US | 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 1958 MG Mga — AJUSA 52055900.
Cylinder Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Fits: 1.5L L4 | CSL720 | 🇺🇸 US | 1/8 IN Wall Thickness | View on Amazon |
| MELLING Fits: 1.5L L4 | CSL620 | 🇺🇸 US | 3/32 IN Wall Thickness | View on Amazon |
| MELLING Fits: 1.6L L4 | CSL629 | 🇺🇸 US | 3/32 IN Wall Thickness | View on Amazon |
| MELLING Fits: 1.6L L4 | CSL729 | 🇺🇸 US | 1/8 IN Wall Thickness | View on Amazon |
This table covers the wear sleeves used to restore a Cylinder seal surface.
MELLING supplies the 4 Cylinder Repair Sleeve parts for the 1958 MG Mga.
Listed part numbers: MELLING CSL720, MELLING CSL620 and MELLING CSL629, plus the other parts above.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 50063300 | 🇺🇸 US | 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 1958 MG Mga — AJUSA 50063300.
Intake & Exhaust Manifold Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 13050800 | 🇺🇸 US | View on Amazon | |
| FEL-PRO Fits: all 1958 Mga engines | MS22506B | 🇺🇸 US | View on Amazon | |
| MAHLE / CLEVITE Fits: all 1958 Mga engines | MS15234 | 🇺🇸 US | Composite | View on Amazon |
| VICTOR REINZ Fits: all 1958 Mga engines | 111076901 | 🇺🇸 US | View on Amazon |
This table covers the Intake & Exhaust Manifold gasket sets. 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.
4 Intake & Exhaust Manifold Gasket Set parts are listed for the 1958 MG Mga, from AJUSA, FEL-PRO, MAHLE / CLEVITE and 1 other brand. 3 parts fit every engine; the other 1 is engine-specific.
This group includes AJUSA 13050800, FEL-PRO MS22506B and MAHLE / CLEVITE MS15234 and the remaining parts above.
Motor Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEA / MARMON RIDE CONTROL Fits: 1.5L L4 | A2736 | 🇺🇸 US | Front Left | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 1.5L L4 | A2735 | 🇺🇸 US | Front Right | View on Amazon |
| PIONEER Fits: 1.5L L4 | 602736 | 🇺🇸 US | Front Left | View on Amazon |
| WESTAR Fits: 1.6L L4 | EM2736 | 🇺🇸 US | Front Left | View on Amazon |
| WESTAR Fits: 1.6L L4 | EM2735 | 🇺🇸 US | Front Right | 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.
5 Motor Mount parts for the 1958 MG Mga come from 3 brands — DEA / MARMON RIDE CONTROL, WESTAR and PIONEER.
This group includes DEA / MARMON RIDE CONTROL A2736, DEA / MARMON RIDE CONTROL A2735 and PIONEER 602736 and the remaining parts above.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 18000900 | 🇺🇸 US | with Original Equipment (OE) # 11026-01N02 | 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 1958 MG Mga — AJUSA 18000900.
Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS / BALDWIN Fits: 1.5L L4 | LF172 | 🇺🇸 US | View on Amazon | |
| WIX Fits: all 1958 Mga engines | 51300 | 🇺🇸 US 🇨🇦 CA | 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 1958 MG Mga come from 2 brands — HASTINGS / BALDWIN and WIX. 1 part fits every engine; the other 1 is engine-specific.
Listed part numbers: HASTINGS / BALDWIN LF172 and WIX 51300.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 59007000 | 🇺🇸 US | View on Amazon |
This table covers the gaskets between the oil pan and the block. 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 59007000.
Timing Chain
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | 2352 | 🇺🇸 US | View on Amazon |
This table covers the timing chains that keep the cams in time with the crank.
One part is listed for the 1958 MG Mga — ITM ENGINE COMPONENTS 2352.
Timing Chain Tensioner
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | 60005 | 🇺🇸 US | 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: ITM ENGINE COMPONENTS 60005.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: all 1958 Mga engines | VS215091 | 🇺🇸 US | View on Amazon | |
| BECK/ARNLEY Fits: 1.5L L4 | 0360081 | 🇺🇸 US | View on Amazon | |
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | 0955214 | 🇺🇸 US | View on Amazon | |
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | 0934001 | 🇺🇸 US | Valve Cover | View on Amazon |
| MAHLE / CLEVITE Fits: all 1958 Mga engines | VS30026 | 🇺🇸 US | Cork-Rubber | View on Amazon |
| VICTOR REINZ Fits: 1.6L L4 | 151079001 | 🇺🇸 US | Set | 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.
6 Valve Cover Gasket parts for the 1958 MG Mga come from 5 brands — ITM ENGINE COMPONENTS, FEL-PRO, BECK/ARNLEY and 2 other brands. The "Popular" part is FEL-PRO VS215091. 2 parts fit every engine; the other 4 are engine-specific.
Listed part numbers: FEL-PRO VS215091, BECK/ARNLEY 0360081 and ITM ENGINE COMPONENTS 0955214, plus the other parts above.
Valve Guide
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | VG751BR | 🇺🇸 US | Bronze | View on Amazon |
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | VG752BR | 🇺🇸 US | Bronze | View on Amazon |
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | VG751CI | 🇺🇸 US | Cast Iron | View on Amazon |
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | VG752CI | 🇺🇸 US | Cast Iron | View on Amazon |
This table covers the pressed-in bronze and cast-iron guides that align valve stems. Typical signs include oil smoke on startup, a guide that has gone oval, or a valve that no longer seats quietly. Guides are a machine-shop fit. Confirm stem diameter in the notes before ordering.
4 Valve Guide parts for the 1958 MG Mga come from ITM ENGINE COMPONENTS.
Part numbers include ITM ENGINE COMPONENTS VG751BR, ITM ENGINE COMPONENTS VG752BR and ITM ENGINE COMPONENTS VG751CI, among others listed above.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.5L L4 | 12006300 | 🇺🇸 US | View on Amazon | |
| AJUSA Fits: 1.5L L4 | 57014400 | 🇺🇸 US | View on Amazon | |
| ITM ENGINE COMPONENTS Fits: 1.5L L4 | SS105 | 🇺🇸 US | Set | 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 1958 MG Mga come from 2 brands — AJUSA and ITM ENGINE COMPONENTS.
This group includes AJUSA 12006300, AJUSA 57014400 and ITM ENGINE COMPONENTS SS105.
Buying Engine Parts for a 1958 MG Mga
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: Valve Cover Gasket and Motor Mount .
Frequently Asked Questions
How many engine parts fit the 1958 MG Mga?
Our catalog currently lists 38 engine parts for the 1958 MG Mga across 16 subcategories and 13 brands, covering both the 1.5L L4 and the 1.6L L4. Each part is matched to the engine(s) it fits.
Do engine parts differ between 1958 MG Mga engines?
Some do. 6 parts fit every engine; the other 32 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 1958 MG Mga?
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 1958 MG Mga 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 1958 MG Mga?
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 1958 MG Mga
Engine Parts for Other MG Mga Years
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