This page lists 4 automatic transmission parts for the 1959 MG Mga, across 2 part types, covering both the 1.5L L4 and the 1.6L L4. Every part shows its brand, manufacturer part number and fitment notes.
The automatic transmission on the 1959 MG Mga covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. All 4 listed parts are Transmission Fluid (3 parts) and Extension Housing Seal (1 part).
The 1959 MG Mga was sold with both the 1.5L L4 and the 1.6L L4. 3 parts fit every engine; the other 1 is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1959 MG Mga automatic transmission parts are VALVOLINE (3 parts) and BECK/ARNLEY (1 part).
Each part number listed for the 1959 MG Mga opens a page with every vehicle that part fits.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 1.5L L4 | 0520403 | 🇺🇸 US | View on Amazon |
This table covers the seals at the Extension Housing. 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.
One part is listed for the 1959 MG Mga — BECK/ARNLEY 0520403.
Transmission Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: all 1959 Mga engines | VV3246 | 🇺🇸 US | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Fits: all 1959 Mga engines | 773775 | 🇺🇸 US | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: all 1959 Mga engines | 881051 | 🇺🇸 US | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.
3 Transmission Fluid parts for the 1959 MG Mga come from VALVOLINE. Every part fits both the 1.5L L4 and the 1.6L L4.
This group includes VALVOLINE VV3246, VALVOLINE 773775 and VALVOLINE 881051.
Buying Automatic Transmission Parts for a 1959 MG Mga
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Some automatic transmission 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Transmission Fluid and Extension Housing Seal .
Frequently Asked Questions
How many automatic transmission parts fit the 1959 MG Mga?
Our catalog currently lists 4 automatic transmission parts for the 1959 MG Mga across 2 subcategories and 2 brands, covering both the 1.5L L4 and the 1.6L L4. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 1959 MG Mga engines?
Some do. 3 parts fit every engine; the other 1 is 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 automatic transmission problems on a 1959 MG Mga?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
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 1959 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 1959 MG Mga?
First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1959 MG Mga
Automatic Transmission Parts for Other MG Mga Years
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