The 1958 Austin A40 has 6 electrical parts with verified fitment on this page — 2 part types and 6 brands, covering the 948cc L4 engine. Each part includes a manufacturer part number and application notes.
On the 1958 Austin A40, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 6 listed parts are Alternator / Generator End Bearing (4 parts) and Battery (2 parts).
The 1958 Austin A40 came with a single engine, the 948cc L4, and every part is verified against it.
6 brands supply electrical parts for the 1958 Austin A40, led by WJB / INMOTION PARTS (1 part), BCA (1 part) and NATIONAL (1 part), plus 3 more brands. Quality grades include Standard Replacement and Economy.
Each part number listed for the 1958 Austin A40 opens a page with every vehicle that part fits.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | RB6202 | 🇺🇸 US | Open Designwith Lucas Alternator | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB202 | 🇺🇸 US | 22 Ampswith Lucas, C40 Alternator | View on Amazon |
| NATIONAL | 202 | 🇺🇸 US | Open Designwith Lucas Alternator | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 0513860 | 🇺🇸 US | Bearing Only | View on Amazon |
This table covers the bearings in the alternator housing. 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.
4 Alternator / Generator End Bearing parts are listed for the 1958 Austin A40, from WJB / INMOTION PARTS, BCA, NATIONAL and 1 other brand.
In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS RB6202.
The Standard Replacement section lists 2 options from BCA and NATIONAL — built to original-equipment specification. BCA NB202 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Listed part numbers: WJB / INMOTION PARTS RB6202, BCA NB202 and NATIONAL 202, plus the other parts above.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | T631P | 🇺🇸 US | AGMValve Regulated | View on Amazon |
| EXIDE | MX24 | 🇺🇸 US | Marathon MaxBCI Group 24 | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
2 Battery parts are listed for the 1958 Austin A40, from BOSCH and EXIDE.
This group includes BOSCH T631P and EXIDE MX24.
Buying Electrical Parts for a 1958 Austin A40
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Confirm you have the 948cc L4 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, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Alternator / Generator End Bearing and Battery .
Frequently Asked Questions
How many electrical parts fit the 1958 Austin A40?
Our catalog currently lists 6 electrical parts for the 1958 Austin A40 across 2 subcategories and 6 brands, covering the 948cc L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 1958 Austin A40?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. 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, clean or renew the battery terminals and grounds with any charging-system repair.
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 Austin A40 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 Austin A40?
Every part on this page is matched to the 948cc L4 engine. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1958 Austin A40
Electrical Parts for Other Austin A40 Years
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