The 1958 Fargo FL6 Pickup has 24 automatic transmission parts with verified fitment on this page — 6 part types and 6 brands, covering the 4.1L 251cid L6 engine. Each part includes a manufacturer part number and application notes.
On the 1958 Fargo FL6 Pickup, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Most of the listed parts are Fluid Pan Gasket (5 parts), Fluid Pump Seal (5 parts) and Manual Shaft Seal (5 parts). The other 3 part types cover the remaining 9 parts.
The 1958 Fargo FL6 Pickup came with a single engine, the 4.1L 251cid L6, and every part is verified against it.
6 brands supply automatic transmission parts for the 1958 Fargo FL6 Pickup, led by WJB / INMOTION PARTS (8 parts), NATIONAL (7 parts) and BCA (4 parts), plus 3 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1958 Fargo FL6 Pickup. 3 parts have it, including FEL-PRO TOS18106 (Fluid Pan Gasket) and NATIONAL 6988H (Fluid Pump Seal). Each part number opens a page with every vehicle that part fits.
Extension Housing Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | RB6206 | 🇨🇦 CA | with 2-Speed Chrysler A323 Transmission | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB206 | 🇨🇦 CA | with A323 Transmission Codewith 2 Gears | View on Amazon |
| NATIONAL | 206 | 🇨🇦 CA | with 2-Speed Chrysler A323 Transmission | 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.
3 Extension Housing Bearing parts are listed for the 1958 Fargo FL6 Pickup, from WJB / INMOTION PARTS, BCA and NATIONAL.
In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS RB6206.
The Standard Replacement section lists 2 options from BCA and NATIONAL — built to original-equipment specification. BCA NB206 is listed in this group.
Part numbers include WJB / INMOTION PARTS RB6206, BCA NB206 and NATIONAL 206.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS473234 | 🇨🇦 CA | with T12 Transmission CodeBorg Warner Transmission | View on Amazon |
| NATIONAL | 473234 | 🇨🇦 CA | with Borg-Warner T12 Transmission3 Speed | View on Amazon |
| WJB / INMOTION PARTS | WS473234 | 🇨🇦 CA | with Borg-Warner T12 Transmission3 Speed | 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.
3 Extension Housing Seal parts for the 1958 Fargo FL6 Pickup come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.
Part numbers include BCA NS473234, NATIONAL 473234 and WJB / INMOTION PARTS WS473234.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | TOS18106 | 🇨🇦 CA | Borg-Warner T12 Automatic Transmission3 Speed | View on Amazon |
| FEL-PRO | TOS18407 | 🇨🇦 CA | Automatic TransmissionChrysler A323 Transmission | View on Amazon |
| MAHLE / CLEVITE | W38987 | 🇨🇦 CA | Cork-RubberAutomatic Transmission Oil Pan Gasket | View on Amazon |
| VICTOR REINZ | 711496800 | 🇨🇦 CA | 3 speed trans.Trans. code T12 | View on Amazon |
| VICTOR REINZ | 711490500 | 🇨🇦 CA | 2 speed trans.Trans. code A323 | View on Amazon |
This table covers the gaskets that seal the Fluid Pan. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
5 Fluid Pan Gasket parts are listed for the 1958 Fargo FL6 Pickup, from FEL-PRO, VICTOR REINZ and MAHLE / CLEVITE. FEL-PRO TOS18106 carries the "Popular" badge.
Part numbers include FEL-PRO TOS18106, FEL-PRO TOS18407 and MAHLE / CLEVITE W38987, among others listed above.
Fluid Pump Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 99212 | 🇨🇦 CA | with Chrysler A323 Transmission2 Speed | View on Amazon |
| WJB / INMOTION PARTS | WS99193 | 🇨🇦 CA | Frontwith Borg-Warner T12 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS99212 | 🇨🇦 CA | Frontwith Chrysler A323 Transmission | View on Amazon |
This table covers the precision wear sleeves used to restore a transmission pump seal surface.
3 Fluid Pump Repair Sleeve parts for the 1958 Fargo FL6 Pickup come from 2 brands — WJB / INMOTION PARTS and NATIONAL.
This group includes NATIONAL 99212, WJB / INMOTION PARTS WS99193 and WJB / INMOTION PARTS WS99212.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 6988H | 🇨🇦 CA | Frontwith Borg-Warner T12 Transmission | View on Amazon |
| BCA | NS6988H | 🇨🇦 CA | Frontwith T12 Transmission Code | View on Amazon |
| NATIONAL | 6879H | 🇨🇦 CA | Frontwith Chrysler A323 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS6879H | 🇨🇦 CA | Frontwith Chrysler A323 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS6988H | 🇨🇦 CA | Frontwith Borg-Warner T12 Transmission | View on Amazon |
This table covers the seals at the Fluid Pump. 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.
5 Fluid Pump Seal parts for the 1958 Fargo FL6 Pickup come from 3 brands — NATIONAL, WJB / INMOTION PARTS and BCA. The "Popular" part is NATIONAL 6988H.
This group includes NATIONAL 6988H, BCA NS6988H and NATIONAL 6879H and the remaining parts above.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 7929S | 🇨🇦 CA | with 3-Speed Borg Warner T12 Transmission | View on Amazon |
| BCA | NS471264 | 🇨🇦 CA | with A323 Transmission Codewith 2 Gears | View on Amazon |
| NATIONAL | 471264 | 🇨🇦 CA | with Chrysler A323 Transmission2 Speed | View on Amazon |
| WJB / INMOTION PARTS | WS7929S | 🇨🇦 CA | with 3-Speed Borg Warner T12 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS471264 | 🇨🇦 CA | with Chrysler A323 Transmission2 Speed | View on Amazon |
This table covers the seals at the Manual Shaft. 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.
5 Manual Shaft Seal parts for the 1958 Fargo FL6 Pickup come from 3 brands — NATIONAL, WJB / INMOTION PARTS and BCA. The "Popular" part is NATIONAL 7929S.
Part numbers include NATIONAL 7929S, BCA NS471264 and NATIONAL 471264, among others listed above.
Buying Automatic Transmission Parts for a 1958 Fargo FL6 Pickup
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 4.1L 251cid 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: Fluid Pan Gasket and Fluid Pump Seal .
Frequently Asked Questions
How many automatic transmission parts fit the 1958 Fargo FL6 Pickup?
Our catalog currently lists 24 automatic transmission parts for the 1958 Fargo FL6 Pickup across 6 subcategories and 6 brands, covering the 4.1L 251cid L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 1958 Fargo FL6 Pickup?
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 1958 Fargo FL6 Pickup 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 Fargo FL6 Pickup?
Every part on this page is matched to the 4.1L 251cid 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 1958 Fargo FL6 Pickup
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