The 1971 Fargo D100 Pickup has 27 automatic transmission parts with verified fitment on this page — 8 part types and 8 brands, covering all 3 engine options (3.7L 225cid L6, 5.2L 318cid V8 and 6.3L 383cid V8). Each part includes a manufacturer part number and application notes.
On the 1971 Fargo D100 Pickup, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. 15 parts of the 27 listed are Extension Housing Seal (7 parts), Fluid Pan Gasket (4 parts) and Fluid Pump Repair Sleeve (4 parts). The other 5 part types cover the remaining 12 parts.
The 1971 Fargo D100 Pickup was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
8 brands supply automatic transmission parts for the 1971 Fargo D100 Pickup, led by WJB / INMOTION PARTS (9 parts), NATIONAL (6 parts) and BCA (3 parts), plus 5 more brands. Quality grades include Daily Driver and Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1971 Fargo D100 Pickup. 2 parts have it, including NATIONAL 7300S (Extension Housing Seal) and WJB / INMOTION PARTS WS7300S (Extension Housing Seal). Each part number opens a page with every vehicle that part fits.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 3.7L 225cid L6 | 7300S | 🇨🇦 CA | Long Boot Style1.250 IN Width | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: 3.7L 225cid L6 | WS7300S | 🇨🇦 CA | Long Boot Stylewith 3-Speed Chrysler A727 Transmission | View on Amazon |
| BCA Fits: 3.7L 225cid L6 | NS8160S | 🇨🇦 CA | with A727 Transmission Codewith 3 Gears | View on Amazon |
| NATIONAL Fits: 3.7L 225cid L6 | 8160S | 🇨🇦 CA | with 3-Speed Chrysler A727 Transmissionwithout Boot | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS8160S | 🇨🇦 CA | with 3-Speed Chrysler A727 Transmissionwithout Boot | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS8935S | 🇨🇦 CA | with Chrysler A904 Transmission3 Speed | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS5206 | 🇨🇦 CA | Width (In): 0.42099999999999999 In | 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.
7 Extension Housing Seal parts for the 1971 Fargo D100 Pickup come from 3 brands — WJB / INMOTION PARTS, NATIONAL and BCA. The "Popular" part is NATIONAL 7300S.
This group includes NATIONAL 7300S, WJB / INMOTION PARTS WS7300S and BCA NS8160S and the remaining parts above.
Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Fits: 3.7L 225cid L6 | 58656 | 🇨🇦 CA | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
One part is listed for the 1971 Fargo D100 Pickup — WIX 58656.
Flexplate
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.7L 225cid L6 | Z201 | 🇨🇦 CA | Outer Diameter: 12-1/4" | View on Amazon |
| ATP Fits: 3.7L 225cid L6 | Z439 | 🇨🇦 CA | Outer Diameter: 12" | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Fits: 3.7L 225cid L6 | FRA413 | 🇨🇦 CA | Outer Diameter: 12-1/4" | View on Amazon |
This table covers the flexplates that connect the crankshaft to the torque converter.
3 Flexplate parts for the 1971 Fargo D100 Pickup come from 2 brands — ATP and PIONEER.
In the Daily Driver grade, ATP supplies 2 parts: grouped for everyday commuting duty. A representative part number is ATP Z201.
In the Heavy Duty grade, PIONEER supplies 1 part: rated for severe service. A representative part number is PIONEER FRA413.
Part numbers include ATP Z201, ATP Z439 and PIONEER FRA413.
Flexplate Mounting Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.7L 225cid L6 | ZX2116 | 🇨🇦 CA | Pack of 6 | View on Amazon |
This table covers the Flexplate Mounting bolts.
This group shows a single part: ATP ZX2116.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 3.7L 225cid L6 | TOS18667 | 🇨🇦 CA | Chrysler A904 Automatic Transmission3 Speed | View on Amazon |
| FEL-PRO Fits: 3.7L 225cid L6 | TOS18583 | 🇨🇦 CA | Chrysler A727 Automatic Transmission3 Speed | View on Amazon |
| VICTOR REINZ Fits: 3.7L 225cid L6 | 711493500 | 🇨🇦 CA | Trans. code A72714 Bolt | View on Amazon |
| VICTOR REINZ Fits: 3.7L 225cid L6 | 711493200 | 🇨🇦 CA | 3 speed trans.Trans. code A904 | 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.
4 Fluid Pan Gasket parts are listed for the 1971 Fargo D100 Pickup, from FEL-PRO and VICTOR REINZ.
This group includes FEL-PRO TOS18667, FEL-PRO TOS18583 and VICTOR REINZ 711493500 and the remaining parts above.
Fluid Pump Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: 3.7L 225cid L6 | NS88187 | 🇨🇦 CA | Frontwith A727 Transmission Code | View on Amazon |
| NATIONAL Fits: 3.7L 225cid L6 | 99187 | 🇨🇦 CA | with 3-Speed Chrysler A727 Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS99149 | 🇨🇦 CA | Frontwith 3-Speed Chrysler A904 Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS99187 | 🇨🇦 CA | Frontwith 3-Speed Chrysler A727 Transmission | View on Amazon |
This table covers the precision wear sleeves used to restore a transmission pump seal surface.
4 Fluid Pump Repair Sleeve parts for the 1971 Fargo D100 Pickup come from 3 brands — WJB / INMOTION PARTS, BCA and NATIONAL.
Part numbers include BCA NS88187, NATIONAL 99187 and WJB / INMOTION PARTS WS99149, among others listed above.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 3.7L 225cid L6 | 331228H | 🇨🇦 CA | Frontwith 3-Speed Chrysler A904 Transmission | View on Amazon |
| NATIONAL Fits: 3.7L 225cid L6 | 331227H | 🇨🇦 CA | Frontwith Chrysler A727 Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS331228H | 🇨🇦 CA | Frontwith 3-Speed Chrysler A904 Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS331227H | 🇨🇦 CA | Frontwith Chrysler A727 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.
4 Fluid Pump Seal parts for the 1971 Fargo D100 Pickup come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 331228H, NATIONAL 331227H and WJB / INMOTION PARTS WS331228H, among others listed above.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: 3.7L 225cid L6 | NS8609 | 🇨🇦 CA | Fits with A727 Transmission Codewith 3 Gears | View on Amazon |
| NATIONAL Fits: 3.7L 225cid L6 | 8609 | 🇨🇦 CA | Fits with 3-Speed Chrysler A727 Transmission | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.7L 225cid L6 | WS8609 | 🇨🇦 CA | Fits with 3-Speed Chrysler A727 Transmission | 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.
3 Manual Shaft Seal parts for the 1971 Fargo D100 Pickup come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: BCA NS8609, NATIONAL 8609 and WJB / INMOTION PARTS WS8609.
Buying Automatic Transmission Parts for a 1971 Fargo D100 Pickup
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Every automatic transmission part here is engine-specific; each row shows which engine(s) it fits.
- 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 Seal and Fluid Pan Gasket .
Frequently Asked Questions
How many automatic transmission parts fit the 1971 Fargo D100 Pickup?
Our catalog currently lists 27 automatic transmission parts for the 1971 Fargo D100 Pickup across 8 subcategories and 8 brands, covering all 3 engine options (3.7L 225cid L6, 5.2L 318cid V8 and 6.3L 383cid V8). Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 1971 Fargo D100 Pickup engines?
Yes. Every automatic transmission part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of automatic transmission problems on a 1971 Fargo D100 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 1971 Fargo D100 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 1971 Fargo D100 Pickup?
First match the engine — each row shows which engine(s) the part fits. 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 1971 Fargo D100 Pickup
Automatic Transmission Parts for Other Fargo D100 Pickup Years
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