The 1970 Checker A11E has 7 automatic transmission parts with verified fitment on this page — 4 part types and 6 brands, covering the 4.1L 250cid L6 engine. Each part includes a manufacturer part number and application notes.
The automatic transmission on the 1970 Checker A11E covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. The largest groups are Extension Housing Seal (3 parts), Dipstick / Fluid Filler Tube Seal (2 parts) and Filter (1 part). The other 1 part type covers the remaining 1 part.
The 1970 Checker A11E came with a single engine, the 4.1L 250cid L6, and every part is verified against it.
6 brands supply automatic transmission parts for the 1970 Checker A11E, led by WJB / INMOTION PARTS (2 parts), ATP (1 part) and PIONEER (1 part), plus 3 more brands.
Each part number listed for the 1970 Checker A11E opens a page with every vehicle that part fits.
Dipstick / Fluid Filler Tube Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JO16 | 🇺🇸 US | Intake Filler Tube To CaseElectrical Connector | View on Amazon |
| PIONEER | 762008 | 🇺🇸 US | Intake Filler Tube To CaseElectrical Connector | View on Amazon |
This table covers the seals at the Dipstick / Fluid Filler Tube. 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.
2 Dipstick / Fluid Filler Tube Seal parts for the 1970 Checker A11E come from 2 brands — ATP and PIONEER.
This group includes ATP JO16 and PIONEER 762008.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS473234 | 🇺🇸 US | View on Amazon | |
| NATIONAL | 473234 | 🇺🇸 US | Borg Warner Trans. | View on Amazon |
| WJB / INMOTION PARTS | WS473234 | 🇺🇸 US | Borg Warner trans.T12 Transmission | 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 1970 Checker A11E come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: BCA NS473234, NATIONAL 473234 and WJB / INMOTION PARTS WS473234.
Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | TF231 | 🇺🇸 US 🇨🇦 CA | GoldLength: 12 in | 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 1970 Checker A11E — ACDELCO TF231.
Fluid Pump Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | WS99193 | 🇺🇸 US | FrontBorg Warner trans. | View on Amazon |
This table covers the precision wear sleeves used to restore a transmission pump seal surface.
This group shows a single part: WJB / INMOTION PARTS WS99193.
Buying Automatic Transmission Parts for a 1970 Checker A11E
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 250cid 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 Seal and Dipstick / Fluid Filler Tube Seal .
Frequently Asked Questions
How many automatic transmission parts fit the 1970 Checker A11E?
Our catalog currently lists 7 automatic transmission parts for the 1970 Checker A11E across 4 subcategories and 6 brands, covering the 4.1L 250cid L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 1970 Checker A11E?
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 1970 Checker A11E 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 1970 Checker A11E?
Every part on this page is matched to the 4.1L 250cid 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 1970 Checker A11E
Automatic Transmission Parts for Other Checker A11E Years
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