3 Automatic transmission parts are listed for the 1966 Fiat 1100, in 1 part type, covering both the 1.1L L4 and the 1.2L L4. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1966 Fiat 1100, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Every listed part is a Rebuild Kit.
The 1966 Fiat 1100 was sold with both the 1.1L L4 and the 1.2L L4. All 3 parts on this page fit every engine.
Every automatic transmission part listed for the 1966 Fiat 1100 comes from PA CARGO. Quality grades include Banner Kit, Deluxe Kit and Overhaul Kit.
Each part number listed for the 1966 Fiat 1100 opens a page with every vehicle that part fits.
Rebuild Kit
Banner Kit (Overhaul Kit + Friction Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 1966 1100 engines | DK5400S | 🇺🇸 US 🇨🇦 CA | Banner Kit | View on Amazon |
Deluxe Kit (Master Kit + Filter, Band & Common Bushings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 1966 1100 engines | MRK5400 | 🇺🇸 US 🇨🇦 CA | Deluxe Kit | View on Amazon |
Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 1966 1100 engines | K54900 | 🇺🇸 US 🇨🇦 CA | Overhaul Kit | View on Amazon |
This table covers the rebuild kits for this assembly.
3 Rebuild Kit parts for the 1966 Fiat 1100 come from PA CARGO. Every part fits both the 1.1L L4 and the 1.2L L4.
The Banner Kit (Overhaul Kit + Friction Clutch Plates) section lists 1 option from PA CARGO — grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. PA CARGO DK5400S is listed in this group.
The Deluxe Kit (Master Kit + Filter, Band & Common Bushings) section lists 1 option from PA CARGO — grouped under the catalog's "Deluxe Kit (Master Kit + Filter, Band & Common Bushings)" designation — the notes column spells out what sets them apart. PA CARGO MRK5400 is listed in this group.
The Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) section lists 1 option from PA CARGO — grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. PA CARGO K54900 is listed in this group.
This group includes PA CARGO DK5400S, PA CARGO MRK5400 and PA CARGO K54900.
Buying Automatic Transmission Parts for a 1966 Fiat 1100
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- You do not need to pick an engine: every automatic transmission part on this page fits both the 1.1L L4 and the 1.2L L4.
- 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: Rebuild Kit .
Frequently Asked Questions
How many automatic transmission parts fit the 1966 Fiat 1100?
Our catalog currently lists 3 automatic transmission parts for the 1966 Fiat 1100 across 1 subcategory and 1 brand, covering both the 1.1L L4 and the 1.2L L4. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 1966 Fiat 1100 engines?
No. On this page every automatic transmission part fits both the 1.1L L4 and the 1.2L L4. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of automatic transmission problems on a 1966 Fiat 1100?
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 1966 Fiat 1100 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 1966 Fiat 1100?
Every part on this page already fits both the 1.1L L4 and the 1.2L L4. 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 1966 Fiat 1100
Automatic Transmission Parts for Other Fiat 1100 Years
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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.