The 1976 Fiat 128 has 41 automatic transmission parts with verified fitment on this page — 13 part types and 9 brands, covering the 1.3L L4 engine. Each part includes a manufacturer part number and application notes.
On the 1976 Fiat 128, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. 19 parts of the 41 listed are Governor / Modulator (7 parts), Transmission Fluid Additive (7 parts) and Extension Housing Seal (5 parts). The other 10 part types cover the remaining 22 parts.
The 1976 Fiat 128 came with a single engine, the 1.3L L4, and every part is verified against it.
9 brands supply automatic transmission parts for the 1976 Fiat 128, led by DURA-BOND (8 parts), ATP (7 parts) and LUBEGARD (7 parts), plus 6 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1976 Fiat 128. 5 parts have it, including NATIONAL 9613S (Extension Housing Seal) and ATP EX21 (Governor / Modulator). Each part number opens a page with every vehicle that part fits.
Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | 44034 | 🇺🇸 US 🇨🇦 CA | Trans. code THM180CFront Pump (Converter Housing) | View on Amazon |
| DURA-BOND | 44034TG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | View on Amazon |
| DURA-BOND | 02399 | 🇺🇸 US 🇨🇦 CA | Trans. code THM180CPump Stator (Front) | View on Amazon |
| DURA-BOND | 02399T | 🇺🇸 US 🇨🇦 CA | Coated | View on Amazon |
This table covers the bushings in this assembly. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
DURA-BOND supplies the 4 Bushing parts for the 1976 Fiat 128.
Part numbers include DURA-BOND 44034, DURA-BOND 44034TG and DURA-BOND 02399, among others listed above.
Case Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | 96040370BR | 🇺🇸 US 🇨🇦 CA | Bronze | View on Amazon |
This table covers the Case bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
One part is listed for the 1976 Fiat 128 — DURA-BOND 96040370BR.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 9613S | 🇺🇸 US 🇨🇦 CA | Series: 9000Type: 71 | View on Amazon |
| BCA | NS5200 | 🇺🇸 US 🇨🇦 CA | External Markings: 15001Material: Nitrile | View on Amazon |
| NATIONAL | 5200 | 🇺🇸 US 🇨🇦 CA | Series: 5200Includes Bushing | View on Amazon |
| WJB / INMOTION PARTS | WS9613S | 🇺🇸 US 🇨🇦 CA | External Markings: 1.500 X 2.380 X 0.413/0.476 | View on Amazon |
| WJB / INMOTION PARTS | WS5200 | 🇺🇸 US 🇨🇦 CA | 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 for the 1976 Fiat 128 come from 3 brands — NATIONAL, WJB / INMOTION PARTS and BCA. The "Popular" part is NATIONAL 9613S.
Listed part numbers: NATIONAL 9613S, BCA NS5200 and NATIONAL 5200, plus the other parts above.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | TF49 | 🇺🇸 US 🇨🇦 CA | OE Replacement | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | B49 | 🇺🇸 US 🇨🇦 CA | Includes (2) Gaskets, (1) Filter, (1) SealPremium Replacement | View on Amazon |
| BECK/ARNLEY | 0440073 | 🇺🇸 US 🇨🇦 CA | Trimatic THM 180 Transmission | View on Amazon |
| PIONEER | 745078 | 🇺🇸 US 🇨🇦 CA | Includes (2) Gaskets, (1) Filter, (1) Seal | 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.
4 Filter parts are listed for the 1976 Fiat 128, from ATP, BECK/ARNLEY and PIONEER.
In the Economy grade, ATP supplies 1 part: the catalog's value-priced group. A representative part number is ATP TF49.
The Standard Replacement section lists 3 options from ATP, BECK/ARNLEY and PIONEER — built to original-equipment specification. ATP B49 is listed in this group.
Listed part numbers: ATP TF49, ATP B49 and BECK/ARNLEY 0440073, plus the other parts above.
Fluid Pump Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | JET22 | 🇺🇸 US 🇨🇦 CA | Trans. code THM180CBell Housing (Pump Body) | View on Amazon |
| DURA-BOND | JET22TG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | View on Amazon |
This table covers the Fluid Pump bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
DURA-BOND supplies both parts for the 1976 Fiat 128.
Part numbers include DURA-BOND JET22 and DURA-BOND JET22TG.
Fluid Pump Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS88187 | 🇺🇸 US 🇨🇦 CA | Frontwith THM180 Transmission Code | View on Amazon |
| NATIONAL | 99187 | 🇺🇸 US 🇨🇦 CA | with GMC THM180 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS99187 | 🇺🇸 US 🇨🇦 CA | Frontwith GMC THM180 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 for the 1976 Fiat 128 come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.
This group includes BCA NS88187, NATIONAL 99187 and WJB / INMOTION PARTS WS99187.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS6712NA | 🇺🇸 US 🇨🇦 CA | Frontwith THM180 Transmission Code | View on Amazon |
| NATIONAL | 6712NA | 🇺🇸 US 🇨🇦 CA | Frontwith GMC THM180 Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS6712NA | 🇺🇸 US 🇨🇦 CA | Frontwith GMC THM180 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 for the 1976 Fiat 128 come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.
Listed part numbers: BCA NS6712NA, NATIONAL 6712NA and WJB / INMOTION PARTS WS6712NA.
Governor / Modulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular | EX21 | 🇺🇸 US 🇨🇦 CA | Adjustable Dual Blue | View on Amazon |
| PIONEER Popular | 747020 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ATP | ELC1020 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ATP | EX18 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ATP | EX19 | 🇺🇸 US 🇨🇦 CA | Purple Stripe-Adjustable | View on Amazon |
| PIONEER | 747037 | 🇺🇸 US 🇨🇦 CA | Purple Stripe-Adjustable | View on Amazon |
| PIONEER | 747039 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the governors and modulators that control transmission shift pressure.
7 Governor / Modulator parts are listed for the 1976 Fiat 128, from ATP and PIONEER. ATP EX21 carries the "Popular" badge.
This group includes ATP EX21, PIONEER 747020 and ATP ELC1020 and the remaining parts above.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 8792S | 🇺🇸 US 🇨🇦 CA | with GMC THM180C Transmission | View on Amazon |
| WJB / INMOTION PARTS | WS8792S | 🇺🇸 US 🇨🇦 CA | with GMC THM180C 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 for the 1976 Fiat 128 come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 8792S and WJB / INMOTION PARTS WS8792S.
Sun Gear Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND | 24050 | 🇺🇸 US 🇨🇦 CA | Trans. code THM180CInput Sun Gear | View on Amazon |
This table covers the Sun Gear bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
This group shows a single part: DURA-BOND 24050.
Torque Converter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TC REMANUFACTURING | B25SA1 | 🇺🇸 US | Trans. code THM180C | View on Amazon |
This table covers the Torque converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering.
One part is listed for the 1976 Fiat 128 — TC REMANUFACTURING B25SA1.
Torque Converter Clutch Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | EE1 | 🇺🇸 US 🇨🇦 CA | Lock-Up | View on Amazon |
This table covers the Torque Converter Clutch solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
One part is listed for the 1976 Fiat 128 — ATP EE1.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular | 19610 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular | 60902 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD | 19689 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD | 63010 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD | 63016 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD | 98010 | 🇺🇸 US 🇨🇦 CA | Use with Original Equipment Manufacturer Recommended Automatic Transmission Fluid 2 Pack 10 Ounces Each or 32 oz. BottleHigh-Performance Original Equipment Manufacturer Fluid Alternative/Protectant | View on Amazon |
| LUBEGARD | 63032 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
LUBEGARD supplies the 7 Transmission Fluid Additive parts for the 1976 Fiat 128. LUBEGARD 19610 carries the "Popular" badge.
This group includes LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689 and the remaining parts above.
Buying Automatic Transmission Parts for a 1976 Fiat 128
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 1.3L L4 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: Governor / Modulator and Transmission Fluid Additive .
Frequently Asked Questions
How many automatic transmission parts fit the 1976 Fiat 128?
Our catalog currently lists 41 automatic transmission parts for the 1976 Fiat 128 across 13 subcategories and 9 brands, covering the 1.3L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 1976 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 1976 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 1976 Fiat 128?
Every part on this page is matched to the 1.3L L4 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 1976 Fiat 128
Automatic Transmission Parts for Other Fiat 128 Years
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