This page lists 6 automatic transmission parts for the 1949 Desoto S-13, across 1 part type, covering the 3.9L 237cid L6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1949 Desoto S-13, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Every listed part is an Extension Housing Bearing.
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 automatic transmission parts are WJB / INMOTION PARTS (2 parts), NATIONAL (2 parts) and BCA (2 parts). Quality grades include Standard Replacement and Economy.
2 parts on this 1949 Desoto S-13 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WJB / INMOTION PARTS RB6207 (Extension Housing Bearing) and NATIONAL 207 (Extension Housing Bearing). Click any part number to see every vehicle that part fits.
Extension Housing Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | RB6207 | 🇺🇸 US | 2 speed trans.Trans. code Fluid Drive | View on Amazon |
| WJB / INMOTION PARTS | RB6307 | 🇺🇸 US | 2 speed trans.with Chrysler M-6 Transmission | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 207 | 🇺🇸 US | 2 speed trans.Trans. code Fluid Drive | View on Amazon |
| BCA | WE61445 | 🇺🇸 US | 2 speed trans.Trans. code Fluid Drive | View on Amazon |
| NATIONAL | 307 | 🇺🇸 US | 2 speed trans.with Chrysler M-6 Transmission | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB307 | 🇺🇸 US | 2 speed trans.Trans. code M-6 | View on Amazon |
This table covers the Extension Housing 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.
6 Extension Housing Bearing parts for the 1949 Desoto S-13 come from 3 brands — WJB / INMOTION PARTS, NATIONAL and BCA. The "Popular" part is WJB / INMOTION PARTS RB6207.
The Economy section lists 2 options from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS RB6207 is listed in this group.
In the Standard Replacement grade, NATIONAL and BCA supply 3 parts: built to original-equipment specification. A representative part number is NATIONAL 207.
1 further part sits outside the graded sections, with the same engine-level match.
Part numbers include WJB / INMOTION PARTS RB6207, WJB / INMOTION PARTS RB6307 and NATIONAL 207, among others listed above.
Buying Automatic Transmission Parts for a 1949 Desoto S-13
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- 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, 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: Extension Housing Bearing .
Frequently Asked Questions
How many automatic transmission parts fit the 1949 Desoto S-13?
Our catalog currently lists 6 automatic transmission parts for the 1949 Desoto S-13 across 1 subcategory and 3 brands, covering the 3.9L 237cid L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 1949 Desoto S-13?
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 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 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 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.