The 1977 Fiat 131 has 34 electrical parts with verified fitment on this page — 10 part types and 14 brands, covering the 1.8L L4 engine. Each part includes a manufacturer part number and application notes.
The electrical system on the 1977 Fiat 131 covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Battery Cable (12 parts), Alternator / Generator End Bearing (8 parts) and Battery (4 parts). The other 7 part types cover the remaining 10 parts.
Every part on this page is matched to the 1.8L L4 — the only engine offered in the 1977 Fiat 131.
The most listed brands for 1977 Fiat 131 electrical parts are DEKA (7 parts), STANDARD MOTOR PRODUCTS (6 parts) and UNITED MOTOR PRODUCTS (3 parts), plus 11 more brands. Quality grades include Standard Replacement and Economy.
5 parts on this 1977 Fiat 131 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WJB / INMOTION PARTS RB6201ZZ (Alternator / Generator End Bearing) and ACDELCO 4ST40 (Battery Cable). Click any part number to see every vehicle that part fits.
Alternator / Generator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 13132 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY | 13132 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
2 Alternator / Generator parts are listed for the 1977 Fiat 131, from FVP and PURE ENERGY.
This group includes FVP 13132 and the remaining parts above.
Alternator / Generator Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | FX45 | 🇺🇸 US 🇨🇦 CA | Thickness (In): 3/16" | View on Amazon |
This table covers the brushes inside the alternator.
One part is listed for the 1977 Fiat 131 — STANDARD MOTOR PRODUCTS FX45.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | RB6201ZZ | 🇺🇸 US 🇨🇦 CA | with Marelli Alternatorwith 42, 44, 45, 55, 60, 65 Amps Alternator | View on Amazon |
| WJB / INMOTION PARTS | RB6302ZZ | 🇺🇸 US 🇨🇦 CA | with Marelli Alternatorwith 42, 44, 45, 55, 60, 65 Amps Alternator | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 201SS | 🇺🇸 US 🇨🇦 CA | with Marelli Alternatorwith 42, 44, 45, 55, 60, 65 Amps Alternator | View on Amazon |
| BCA | NB201SS | 🇺🇸 US 🇨🇦 CA | with Marelli Alternatorwith 42, 44, 45, 55, 60, 65 Amps Alternator | View on Amazon |
| BCA | NB302SS | 🇺🇸 US 🇨🇦 CA | with Marelli Alternatorwith 42, 44, 45, 55, 60, 65 Amps Alternator | View on Amazon |
| NATIONAL | 302SS | 🇺🇸 US 🇨🇦 CA | with Marelli Alternatorwith 42, 44, 45, 55, 60, 65 Amps Alternator | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN | 201SS | 🇺🇸 US 🇨🇦 CA | 0.3937 in. Width | View on Amazon |
| TIMKEN | 302SS | 🇺🇸 US 🇨🇦 CA | 0.5118 in. Width | View on Amazon |
This table covers the bearings in the alternator housing. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
8 Alternator / Generator End Bearing parts for the 1977 Fiat 131 come from 4 brands — WJB / INMOTION PARTS, NATIONAL, BCA and 1 other brand. The "Popular" part is WJB / INMOTION PARTS RB6201ZZ.
The Economy section lists 2 options from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS RB6201ZZ is listed in this group.
In the Standard Replacement grade, NATIONAL and BCA supply 4 parts: built to original-equipment specification. A representative part number is NATIONAL 201SS.
2 further parts sit outside the graded sections, with the same engine-level match.
This group includes WJB / INMOTION PARTS RB6201ZZ, WJB / INMOTION PARTS RB6302ZZ and NATIONAL 201SS and the remaining parts above.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | S678DT | 🇺🇸 US 🇨🇦 CA | AGMAGM | View on Amazon |
| DEKA | 9A78DT | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| DEKA | 9A34 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| FVP | P24AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 24 | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
4 Battery parts for the 1977 Fiat 131 come from 3 brands — DEKA, BOSCH and FVP.
Listed part numbers: BOSCH S678DT, DEKA 9A78DT and DEKA 9A34, plus the other parts above.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 4ST40 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | A104 | 🇺🇸 US 🇨🇦 CA | NegativeBATTERY TO GROUND | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | A404L | 🇺🇸 US 🇨🇦 CA | Length: 40" | View on Amazon |
| DEKA | 00784 | 🇺🇸 US 🇨🇦 CA | Black4 Gauge | View on Amazon |
| DEKA | 00785 | 🇺🇸 US 🇨🇦 CA | Black4 Gauge | View on Amazon |
| DEKA | 00282 | 🇺🇸 US 🇨🇦 CA | Red4 Gauge | View on Amazon |
| STANDARD MOTOR PRODUCTS | 7104C | 🇺🇸 US 🇨🇦 CA | Federal Wire | View on Amazon |
| STANDARD MOTOR PRODUCTS | 7404SC | 🇺🇸 US 🇨🇦 CA | Length: 40"Federal Wire | View on Amazon |
| STANDARD MOTOR PRODUCTS | A651 | 🇺🇸 US 🇨🇦 CA | PositiveBATTERY TO SWITCH | View on Amazon |
| UNITED MOTOR PRODUCTS | 4214N | 🇺🇸 US 🇨🇦 CA | 14" Cable4-Gauge | View on Amazon |
| UNITED MOTOR PRODUCTS | 4440 | 🇺🇸 US 🇨🇦 CA | 4-GaugeSwitch To Starter | View on Amazon |
| UNITED MOTOR PRODUCTS | 4251 | 🇺🇸 US 🇨🇦 CA | 4-Gauge51" Cable | View on Amazon |
This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early.
12 Battery Cable parts are listed for the 1977 Fiat 131, from STANDARD MOTOR PRODUCTS, DEKA, UNITED MOTOR PRODUCTS and 1 other brand. ACDELCO 4ST40 carries the "Popular" badge.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA | 00350 | 🇺🇸 US 🇨🇦 CA | Top Post Terminal | View on Amazon |
| DEKA | 01056 | 🇺🇸 US 🇨🇦 CA | Top Post Terminal Lead Free | View on Amazon |
This table covers the terminals and clamps that connect cables to the battery posts.
2 Battery Terminal parts for the 1977 Fiat 131 come from DEKA.
This group includes DEKA 00350 and DEKA 01056.
Flasher
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | 550 | 🇺🇸 US 🇨🇦 CA | Thermal FlasherThermal, 12v, 3 terminal, 12.8amp, 2-6 bulbs | View on Amazon |
| TRIDON / NOVITA | EL13 | 🇺🇸 US 🇨🇦 CA | Electro-Mechanical Flasher | View on Amazon |
This table covers the flasher units that blink the turn signals and hazards.
2 Flasher parts for the 1977 Fiat 131 come from 2 brands — BUSSMANN and TRIDON / NOVITA.
This group includes BUSSMANN 550 and TRIDON / NOVITA EL13.
Starter Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 5A1082 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the brushes inside the starter motor.
This group shows a single part: WELLS 5A1082.
Starter Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 7D1135 | 🇺🇸 US 🇨🇦 CA | Drive End | View on Amazon |
This table covers the Starter 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: WELLS 7D1135.
Starter Drive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 2K1112 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the starter drives that engage the flywheel ring gear.
This group shows a single part: WELLS 2K1112.
Buying Electrical Parts for a 1977 Fiat 131
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Confirm you have the 1.8L 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, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Battery Cable and Alternator / Generator End Bearing .
Frequently Asked Questions
How many electrical parts fit the 1977 Fiat 131?
Our catalog currently lists 34 electrical parts for the 1977 Fiat 131 across 10 subcategories and 14 brands, covering the 1.8L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 1977 Fiat 131?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. 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, clean or renew the battery terminals and grounds with any charging-system repair.
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 1977 Fiat 131 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 1977 Fiat 131?
Every part on this page is matched to the 1.8L L4 engine. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1977 Fiat 131
Electrical Parts for Other Fiat 131 Years
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