1977 Fiat 128 Electrical Parts

Engine:
1.3L L4

48 Electrical parts are listed for the 1977 Fiat 128, in 10 part types, covering the 1.3L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 1977 Fiat 128, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. Most of the listed parts are Battery Cable (17 parts), Alternator / Generator End Bearing (9 parts) and Alternator / Generator (6 parts). The other 7 part types cover the remaining 16 parts.

Alternator / Generator

Brand Part Number Markets Notes Buy
PURE ENERGY Popular 14045
🇺🇸 US 🇨🇦 CA
RemanufacturedDoes Not Include Pulley
Fitment notes — PURE ENERGY 14045
RemanufacturedDoes Not Include Pulley
without Air Conditioning44 Amps
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PURE ENERGY Popular 13131
🇺🇸 US 🇨🇦 CA
RemanufacturedDoes Not Include Pulley
Fitment notes — PURE ENERGY 13131
RemanufacturedDoes Not Include Pulley
with Air Conditioning60 Amps
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FVP 13131
🇺🇸 US 🇨🇦 CA
RemanufacturedDoes Not Include Pulley
Fitment notes — FVP 13131
RemanufacturedDoes Not Include Pulley
with Air Conditioning60 Amps
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FVP 14045
🇺🇸 US 🇨🇦 CA
RemanufacturedDoes Not Include Pulley
Fitment notes — FVP 14045
RemanufacturedDoes Not Include Pulley
without Air Conditioning44 Amps
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TERREPOWER 13131
🇺🇸 US 🇨🇦 CA
Remanufactured
Fitment notes — TERREPOWER 13131
Remanufactured
with A/C60 Amps
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TERREPOWER 14045
🇺🇸 US 🇨🇦 CA
RemanufacturedDoes Not Include Pulley
Fitment notes — TERREPOWER 14045
RemanufacturedDoes Not Include Pulley
without Air Conditioning45 Amps
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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.

Alternator / Generator End Bearing

Economy

Brand Part Number Markets Notes Buy
WJB / INMOTION PARTS Popular RB6203Z
🇺🇸 US 🇨🇦 CA
Outside Diameter: 1.575 In
Fitment notes — WJB / INMOTION PARTS RB6203Z
Outside Diameter: 1.575 In
ONE Shield Stylewith Bosch AlternatorDrive End
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WJB / INMOTION PARTS RB6203ZZ
🇺🇸 US 🇨🇦 CA
with Marelli AlternatorTwo Shield Style
Fitment notes — WJB / INMOTION PARTS RB6203ZZ
with Marelli AlternatorTwo Shield StyleDrive End
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Standard Replacement

Brand Part Number Markets Notes Buy
NATIONAL Popular 203S
🇺🇸 US 🇨🇦 CA
ONE Shield Stylewith Bosch Alternator
Fitment notes — NATIONAL 203S
ONE Shield Stylewith Bosch AlternatorDrive End
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BCA NB203S
🇺🇸 US 🇨🇦 CA
with Bosch AlternatorDrive End
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BCA NB203SS
🇺🇸 US 🇨🇦 CA
with Marelli AlternatorDrive End
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NATIONAL 203SS
🇺🇸 US 🇨🇦 CA
Two Shield Stylewith Marelli Alternator
Fitment notes — NATIONAL 203SS
Two Shield Stylewith Marelli AlternatorDrive End
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Brand Part Number Markets Notes Buy
AUTO EXTRA 62032ZJ
🇺🇸 US 🇨🇦 CA
FrontDRIVE END
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POWER TRAIN COMPONENTS PT203SS
🇺🇸 US 🇨🇦 CA
Frontwith Marelli Alternator
Fitment notes — POWER TRAIN COMPONENTS PT203SS
Frontwith Marelli AlternatorTwo Shield Style
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TIMKEN 302SS
🇺🇸 US 🇨🇦 CA
0.5118 in. Width
Fitment notes — TIMKEN 302SS
0.5118 in. Width
Fits:
Drive EndMarelli 42, 44, 45 Amp.or Drive EndMarelli 55 Amp.or Drive EndMarelli 60, 65 Amp.
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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.

Battery

Brand Part Number Markets Notes Buy
BOSCH S678DT
🇺🇸 US 🇨🇦 CA
AGMAGM
Fitment notes — BOSCH S678DT
AGMAGMBCI Group 34/78CCA 775RC 120(LxWxH) 10.75" x 6.875" x 8.0"
Supplied adapter May be required For proper Fit.Dual Terminal
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DEKA 9A78DT
🇺🇸 US 🇨🇦 CA
IntimidatorAGM
Fitment notes — DEKA 9A78DT
IntimidatorAGMBCI Group 34/78750 CCALength X Width X Height: 10.75 In x 6.875 In x 8 In
Supplied adapter May be required For proper Fit.
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DEKA 9A34
🇺🇸 US 🇨🇦 CA
IntimidatorAGM
Fitment notes — DEKA 9A34
IntimidatorAGMBCI Group 34750 CCALength X Width X Height: 10.75 In x 6.875 In x 7.75 In
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FVP P24AGM
🇺🇸 US 🇨🇦 CA
Platinum AGMBCI Group: 24
Fitment notes — FVP P24AGM
Platinum AGMBCI Group: 24CCA: 750140 Minute Reserve Capacity(LxWxH) 10.2" x 6.8" x 7.8"
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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.

Battery Cable

Brand Part Number Markets Notes Buy
ACDELCO Popular 4BC30X
🇺🇸 US 🇨🇦 CA
GoldInsulation Color: Black, Blue
Fitment notes — ACDELCO 4BC30X
GoldInsulation Color: Black, Blue
PositiveBATTERY TO SWITCH
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STANDARD MOTOR PRODUCTS Popular B9G
🇺🇸 US 🇨🇦 CA
PositiveSwitch To Starter
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STANDARD MOTOR PRODUCTS Popular A104
🇺🇸 US 🇨🇦 CA
NegativeBATTERY TO GROUND
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STANDARD MOTOR PRODUCTS Popular A304U
🇺🇸 US 🇨🇦 CA
30" 4 Gauge
Fitment notes — STANDARD MOTOR PRODUCTS A304U
30" 4 Gauge
PositiveBATTERY TO SWITCH
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DEKA 00297
🇺🇸 US 🇨🇦 CA
Red4 Gauge
Fitment notes — DEKA 00297
Red4 Gauge1 Lead38 In Length
Positive
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DEKA 00785
🇺🇸 US 🇨🇦 CA
Black4 Gauge
Fitment notes — DEKA 00785
Black4 Gauge15 In Length
NegativeAuxiliary Lead Wires May Not be Required
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DEKA 00801
🇺🇸 US 🇨🇦 CA
Black4 Gauge
Fitment notes — DEKA 00801
Black4 Gauge20 In Length
Negative
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DEKA 00364
🇺🇸 US 🇨🇦 CA
Silver4 Gauge
Fitment notes — DEKA 00364
Silver4 Gauge14 In Length
Ground Strap 4 Gauge 14 in. BlackSwitch To Starter
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DEKA 00298
🇺🇸 US 🇨🇦 CA
Red4 Gauge
Fitment notes — DEKA 00298
Red4 Gauge1 Lead43 In Length
Positive
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STANDARD MOTOR PRODUCTS 7104C
🇺🇸 US 🇨🇦 CA
Federal Wire
Fitment notes — STANDARD MOTOR PRODUCTS 7104C
Federal Wire
NegativeBATTERY TO GROUND
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STANDARD MOTOR PRODUCTS 7304SC
🇺🇸 US 🇨🇦 CA
Federal Wire
Fitment notes — STANDARD MOTOR PRODUCTS 7304SC
Federal Wire
NegativeEngine Ground To Frame
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STANDARD MOTOR PRODUCTS 7324LC
🇺🇸 US 🇨🇦 CA
Federal Wire
Fitment notes — STANDARD MOTOR PRODUCTS 7324LC
Federal Wire
PositiveBATTERY TO SWITCH
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STANDARD MOTOR PRODUCTS A304L
🇺🇸 US 🇨🇦 CA
NegativeEngine Ground To Frame
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UNITED MOTOR PRODUCTS 4214N
🇺🇸 US 🇨🇦 CA
14" Cable4-Gauge
Fitment notes — UNITED MOTOR PRODUCTS 4214N
14" Cable4-GaugeTop Mount
Negative
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UNITED MOTOR PRODUCTS 4432
🇺🇸 US 🇨🇦 CA
4-GaugeSwitch To Starter
Fitment notes — UNITED MOTOR PRODUCTS 4432
4-GaugeSwitch To Starter
Negative32" 2-eyelet
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UNITED MOTOR PRODUCTS 4232
🇺🇸 US 🇨🇦 CA
32" Cable4-Gauge
Fitment notes — UNITED MOTOR PRODUCTS 4232
32" Cable4-GaugeTop MountTop Mount 32 inches
Positive
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WELLS 1J1150R
🇺🇸 US 🇨🇦 CA
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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.

Battery Terminal

Brand Part Number Markets Notes Buy
DEKA 00350
🇺🇸 US 🇨🇦 CA
Top Post Terminal
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DEKA 01056
🇺🇸 US 🇨🇦 CA
Top Post Terminal Lead Free
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This table covers the terminals and clamps that connect cables to the battery posts.

Flasher

Brand Part Number Markets Notes Buy
BUSSMANN 550
🇺🇸 US 🇨🇦 CA
Thermal FlasherThermal, 12v, 3 terminal, 12.8amp, 2-6 bulbs
Fitment notes — BUSSMANN 550
Thermal FlasherThermal, 12v, 3 terminal, 12.8amp, 2-6 bulbs
Fits:
Turn Signalor HAZARD WARNING
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TRIDON / NOVITA EL13
🇺🇸 US 🇨🇦 CA
Electro-Mechanical Flasher
Fitment notes — TRIDON / NOVITA EL13
Electro-Mechanical Flasher
OEM: 4300635
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This table covers the flasher units that blink the turn signals and hazards.

Starter Drive

Brand Part Number Markets Notes Buy
ACDELCO E2009
🇺🇸 US 🇨🇦 CA
Professional
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WELLS 2K1113
🇺🇸 US 🇨🇦 CA
Starter # 4262582
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This table covers the starter drives that engage the flywheel ring gear.

Starter Motor

Brand Part Number Markets Notes Buy
FVP 16465
🇺🇸 US 🇨🇦 CA
Remanufactured
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PURE ENERGY 16465
🇺🇸 US 🇨🇦 CA
Remanufactured
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REMY 16465
🇺🇸 US 🇨🇦 CA
Remanufactured
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TERREPOWER 16465
🇺🇸 US 🇨🇦 CA
RemanufacturedVoltage: 12 Volts (Direct Current)
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This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.

Starter Solenoid

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS SS258
🇺🇸 US 🇨🇦 CA
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This table covers the Starter 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.

Voltage Regulator

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS VR124
🇺🇸 US 🇨🇦 CA
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This table covers the regulators that control alternator output voltage.

Buying Electrical Parts for a 1977 Fiat 128

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 1.3L 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, 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 128?

Our catalog currently lists 48 electrical parts for the 1977 Fiat 128 across 10 subcategories and 18 brands, covering the 1.3L L4 engine. Each part is matched to the engine(s) it fits.

What are the signs of electrical problems on a 1977 Fiat 128?

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 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 1977 Fiat 128?

Every part on this page is matched to the 1.3L 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 128

Electrical Parts for Other Fiat 128 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.