13 Automatic transmission parts are listed for the 1963 Apollo GT, in 4 part types, covering the 3.5L 215cid V8 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1963 Apollo GT, 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 Extension Housing Seal (5 parts), Fluid Pump Repair Sleeve (3 parts) and Fluid Pump Seal (3 parts). The other 1 part type covers the remaining 2 parts.
Every part on this page is matched to the 3.5L 215cid V8 — the only engine offered in the 1963 Apollo GT.
The most listed brands for 1963 Apollo GT automatic transmission parts are NATIONAL (5 parts), WJB / INMOTION PARTS (5 parts) and BCA (3 parts).
1 part on this 1963 Apollo GT page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — NATIONAL 9613S (Extension Housing Seal). Click any part number to see every vehicle that part fits.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 9613S | 🇺🇸 US | Series: 9000Type: 71 | View on Amazon |
| BCA | NS5200 | 🇺🇸 US | External Markings: 15001Material: Nitrile | View on Amazon |
| NATIONAL | 5200 | 🇺🇸 US | Series: 5200Includes Bushing | View on Amazon |
| WJB / INMOTION PARTS | WS9613S | 🇺🇸 US | External Markings: 1.500 X 2.380 X 0.413/0.476 | View on Amazon |
| WJB / INMOTION PARTS | WS5200 | 🇺🇸 US | Material: Nitrile | 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.
5 Extension Housing Seal parts are listed for the 1963 Apollo GT, from NATIONAL, WJB / INMOTION PARTS and BCA. NATIONAL 9613S carries the "Popular" badge.
Listed part numbers: NATIONAL 9613S, BCA NS5200 and NATIONAL 5200, plus the other parts above.
Fluid Pump Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS88187 | 🇺🇸 US | Frontwith Super Turbine 300 Transmission code | View on Amazon |
| NATIONAL | 99187 | 🇺🇸 US | with 2-Speed General Motors Super Turbine 300 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS99187 | 🇺🇸 US | Frontwith 2-Speed General Motors Super Turbine 300 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 are listed for the 1963 Apollo GT, from BCA, NATIONAL and WJB / INMOTION PARTS.
Part numbers include BCA NS88187, NATIONAL 99187 and WJB / INMOTION PARTS WS99187.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS6712NA | 🇺🇸 US | Frontwith Super Turbine 300 Transmission code | View on Amazon |
| NATIONAL | 6712NA | 🇺🇸 US | Frontwith 2-Speed General Motors Super Turbine 300 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS6712NA | 🇺🇸 US | Frontwith 2-Speed General Motors Super Turbine 300 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.
3 Fluid Pump Seal parts are listed for the 1963 Apollo GT, from BCA, NATIONAL and WJB / INMOTION PARTS.
Part numbers include BCA NS6712NA, NATIONAL 6712NA and WJB / INMOTION PARTS WS6712NA.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 8792S | 🇺🇸 US | with 2-Speed General Motors Super Turbine 300 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS8792S | 🇺🇸 US | with 2-Speed General Motors Super Turbine 300 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.
2 Manual Shaft Seal parts are listed for the 1963 Apollo GT, from NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: NATIONAL 8792S and WJB / INMOTION PARTS WS8792S.
Buying Automatic Transmission Parts for a 1963 Apollo GT
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 3.5L 215cid V8 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 Fluid Pump Repair Sleeve .
Frequently Asked Questions
How many automatic transmission parts fit the 1963 Apollo GT?
Our catalog currently lists 13 automatic transmission parts for the 1963 Apollo GT across 4 subcategories and 3 brands, covering the 3.5L 215cid V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 1963 Apollo GT?
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 1963 Apollo GT 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 1963 Apollo GT?
Every part on this page is matched to the 3.5L 215cid V8 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 1963 Apollo GT
Automatic Transmission Parts for Other Apollo GT Years
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