This page lists 13 electrical parts for the 1957 Morris Minor, across 2 part types, covering the 948cc L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1957 Morris Minor, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 13 listed parts are Alternator / Generator End Bearing (10 parts) and Battery (3 parts).
Every part on this page is matched to the 948cc L4 — the only engine offered in the 1957 Morris Minor.
The most listed brands for 1957 Morris Minor electrical parts are WJB / INMOTION PARTS (2 parts), BCA (2 parts) and NATIONAL (2 parts), plus 4 more brands. Quality grades include Standard Replacement and Economy.
2 parts on this 1957 Morris Minor page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including BCA NB203 (Alternator / Generator End Bearing) and NATIONAL 203 (Alternator / Generator End Bearing). Click any part number to see every vehicle that part fits.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | RB6203 | 🇺🇸 US | with Lucas AlternatorC40 Models | View on Amazon |
| WJB / INMOTION PARTS | RB6202 | 🇺🇸 US | Open Designwith Lucas Alternator | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular | NB203 | 🇺🇸 US | with C40 Models Alternatorwith Lucas Alternator | View on Amazon |
| NATIONAL Popular | 203 | 🇺🇸 US | with Lucas AlternatorC40 Models | View on Amazon |
| BCA | NB202 | 🇺🇸 US | with Lucas, C40 AlternatorDrive End | View on Amazon |
| NATIONAL | 202 | 🇺🇸 US | Open Designwith Lucas Alternator | View on Amazon |
| SCHAEFFLER | 6202 | 🇺🇸 US | Front35 mm Outside Diameter | View on Amazon |
| SCHAEFFLER | 6203C3 | 🇺🇸 US | Rear12 MM Width | View on Amazon |
| SKF | 6203J | 🇺🇸 US | Rear | View on Amazon |
| SKF | 6202J | 🇺🇸 US | Front | 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.
10 Alternator / Generator End Bearing parts for the 1957 Morris Minor come from 5 brands — WJB / INMOTION PARTS, BCA, NATIONAL and 2 other brands. The "Popular" part is BCA NB203.
The Economy section lists 2 options from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS RB6203 is listed in this group.
In the Standard Replacement grade, BCA, NATIONAL, SCHAEFFLER and 1 other brand supply 8 parts: built to original-equipment specification. A representative part number is BCA NB203.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | S678DT | 🇺🇸 US | AGMAGM | View on Amazon |
| DEKA | 9A78DT | 🇺🇸 US | IntimidatorAGM | View on Amazon |
| DEKA | 9A34 | 🇺🇸 US | IntimidatorAGM | 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.
3 Battery parts for the 1957 Morris Minor come from 2 brands — DEKA and BOSCH.
Listed part numbers: BOSCH S678DT, DEKA 9A78DT and DEKA 9A34.
Buying Electrical Parts for a 1957 Morris Minor
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 1957 Morris Minor?
Our catalog currently lists 13 electrical parts for the 1957 Morris Minor across 2 subcategories and 7 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 1957 Morris Minor?
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 1957 Morris Minor 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 1957 Morris Minor?
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 1957 Morris Minor
Electrical Parts for Other Morris Minor Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.