This page lists 4 automatic transmission parts for the 1973 Fiat 128, across 2 part types, covering both the 1.1L L4 and the 1.3L L4. Every part shows its brand, manufacturer part number and fitment notes.
The automatic transmission on the 1973 Fiat 128 covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. All 4 listed parts are Rebuild Kit (3 parts) and Filter (1 part).
The 1973 Fiat 128 was sold with both the 1.1L L4 and the 1.3L L4. All 4 parts on this page fit every engine.
The most listed brands for 1973 Fiat 128 automatic transmission parts are PA CARGO (3 parts) and BECK/ARNLEY (1 part). Quality grades include Banner Kit, Deluxe Kit and Overhaul Kit.
Each part number listed for the 1973 Fiat 128 opens a page with every vehicle that part fits.
Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: all 1973 128 engines | 0440073 | 🇺🇸 US 🇨🇦 CA | Trimatic THM 180 Transmission | 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.
This group shows a single part: BECK/ARNLEY 0440073.
Rebuild Kit
Banner Kit (Overhaul Kit + Friction Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 1973 128 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 1973 128 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 1973 128 engines | K54900 | 🇺🇸 US 🇨🇦 CA | Overhaul Kit | View on Amazon |
This table covers the rebuild kits for this assembly.
PA CARGO supplies the 3 Rebuild Kit parts for the 1973 Fiat 128. All of them fit every engine offered in the 1973 128.
In the Banner Kit (Overhaul Kit + Friction Clutch Plates) grade, PA CARGO supplies 1 part: grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO DK5400S.
In the Deluxe Kit (Master Kit + Filter, Band & Common Bushings) grade, PA CARGO supplies 1 part: grouped under the catalog's "Deluxe Kit (Master Kit + Filter, Band & Common Bushings)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO MRK5400.
In the Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) grade, PA CARGO supplies 1 part: grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO K54900.
Part numbers include PA CARGO DK5400S, PA CARGO MRK5400 and PA CARGO K54900.
Buying Automatic Transmission Parts for a 1973 Fiat 128
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 1.3L 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 and Filter .
Frequently Asked Questions
How many automatic transmission parts fit the 1973 Fiat 128?
Our catalog currently lists 4 automatic transmission parts for the 1973 Fiat 128 across 2 subcategories and 2 brands, covering both the 1.1L L4 and the 1.3L L4. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 1973 Fiat 128 engines?
No. On this page every automatic transmission part fits both the 1.1L L4 and the 1.3L 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 1973 Fiat 128?
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 1973 Fiat 128 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 1973 Fiat 128?
Every part on this page already fits both the 1.1L L4 and the 1.3L 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 1973 Fiat 128
Automatic Transmission Parts for Other Fiat 128 Years
Switch vehicle or jump to a subcategory
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.