9 Electrical parts are listed for the 1949 Desoto S-13, in 4 part types, covering the 3.9L 237cid L6 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1949 Desoto S-13, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. Most of the listed parts are Battery Cable (4 parts), Alternator / Generator End Bearing (3 parts) and Starter Brush (1 part). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 3.9L 237cid L6 — the only engine offered in the 1949 Desoto S-13.
The most listed brands for 1949 Desoto S-13 electrical parts are STANDARD MOTOR PRODUCTS (6 parts), WJB / INMOTION PARTS (1 part) and BCA (1 part), plus 1 more brand. Quality grades include Standard Replacement and Economy.
Each part number listed for the 1949 Desoto S-13 opens a page with every vehicle that part fits.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | RB6203 | 🇺🇸 US | Open DesignExcept Heavy Duty | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB203 | 🇺🇸 US | Except Heavy DutyDrive End | View on Amazon |
| NATIONAL | 203 | 🇺🇸 US | Except Heavy DutyOpen Design | 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.
3 Alternator / Generator End Bearing parts for the 1949 Desoto S-13 come from 3 brands — WJB / INMOTION PARTS, BCA and NATIONAL.
The Economy section lists 1 option 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 and NATIONAL supply 2 parts: built to original-equipment specification. A representative part number is BCA NB203.
Part numbers include WJB / INMOTION PARTS RB6203, BCA NB203 and NATIONAL 203.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | A161 | 🇺🇸 US | Lug Hole Diameter: .468" | View on Amazon |
| STANDARD MOTOR PRODUCTS | 7161 | 🇺🇸 US | Federal Wire | View on Amazon |
| STANDARD MOTOR PRODUCTS | A301 | 🇺🇸 US | PositiveBATTERY TO SWITCH | View on Amazon |
| STANDARD MOTOR PRODUCTS | 7311 | 🇺🇸 US | Federal Wire | View on Amazon |
This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early.
STANDARD MOTOR PRODUCTS supplies the 4 Battery Cable parts for the 1949 Desoto S-13.
This group includes STANDARD MOTOR PRODUCTS A161, STANDARD MOTOR PRODUCTS 7161 and STANDARD MOTOR PRODUCTS A301 and the remaining parts above.
Starter Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | EX18T | 🇺🇸 US | Length (In): 1/2 | View on Amazon |
This table covers the brushes inside the starter motor.
This group shows a single part: STANDARD MOTOR PRODUCTS EX18T.
Voltage Regulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | VR2 | 🇺🇸 US | View on Amazon |
This table covers the regulators that control alternator output voltage.
This group shows a single part: STANDARD MOTOR PRODUCTS VR2.
Buying Electrical Parts for a 1949 Desoto S-13
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 3.9L 237cid L6 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: Battery Cable and Alternator / Generator End Bearing .
Frequently Asked Questions
How many electrical parts fit the 1949 Desoto S-13?
Our catalog currently lists 9 electrical parts for the 1949 Desoto S-13 across 4 subcategories and 4 brands, covering the 3.9L 237cid L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 1949 Desoto S-13?
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 1949 Desoto S-13 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 1949 Desoto S-13?
Every part on this page is matched to the 3.9L 237cid L6 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 1949 Desoto S-13
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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.