This page lists 43 electrical parts for the 1978 Alfa Romeo Spider, across 13 part types, covering the 2.0L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
The electrical system on the 1978 Alfa Romeo Spider covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Battery (9 parts), Alternator / Generator End Bearing (6 parts) and Alternator / Generator (5 parts). The other 10 part types cover the remaining 23 parts.
The 1978 Alfa Romeo Spider came with a single engine, the 2.0L L4, and every part is verified against it.
16 brands supply electrical parts for the 1978 Alfa Romeo Spider, led by DEKA (11 parts), STANDARD MOTOR PRODUCTS (7 parts) and FVP (4 parts), plus 13 more brands. Quality grades include AGM, Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1978 Alfa Romeo Spider. 5 parts have it, including WJB / INMOTION PARTS RB6203Z (Alternator / Generator End Bearing) and DEKA 9A78DT (Battery). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | AL16X | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| FVP | 13069 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| PURE ENERGY | 13069 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| REMY | 11443 | 🇺🇸 US 🇨🇦 CA | Premium RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER | 13069 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | 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.
5 Alternator / Generator parts for the 1978 Alfa Romeo Spider come from 5 brands — BOSCH, FVP, PURE ENERGY and 2 other brands.
Part numbers include BOSCH AL16X and FVP 13069, among others listed above.
Alternator / Generator Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | GB292 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the brushes inside the alternator.
This group shows a single part: STANDARD MOTOR PRODUCTS GB292.
Alternator / Generator Brush Holder
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 5A1201 | 🇺🇸 US 🇨🇦 CA | with Bosch Alternator | View on Amazon |
This table covers the holders that carry the alternator brushes.
This group shows a single part: WELLS 5A1201.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | RB6203Z | 🇺🇸 US 🇨🇦 CA | Outside Diameter: 1.575 In | View on Amazon |
| WJB / INMOTION PARTS | RB6201Z | 🇺🇸 US 🇨🇦 CA | with Bosch Alternatorwith 35, 45 Amps Alternator | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 203S | 🇺🇸 US 🇨🇦 CA | ONE Shield Stylewith Bosch Alternator | View on Amazon |
| BCA | NB203S | 🇺🇸 US 🇨🇦 CA | with 45, 55, 65 Amps AlternatorDrive End | View on Amazon |
| BCA | NB201S | 🇺🇸 US 🇨🇦 CA | with 35, 45 Amps AlternatorCommutator End | View on Amazon |
| SCHAEFFLER | 6203Z | 🇺🇸 US 🇨🇦 CA | Front12.000 mm 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.
6 Alternator / Generator End Bearing parts are listed for the 1978 Alfa Romeo Spider, from WJB / INMOTION PARTS, BCA, NATIONAL and 1 other brand. WJB / INMOTION PARTS RB6203Z carries the "Popular" badge.
In the Economy grade, WJB / INMOTION PARTS supplies 2 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS RB6203Z.
The Standard Replacement section lists 4 options from BCA, NATIONAL and SCHAEFFLER — built to original-equipment specification. NATIONAL 203S is listed in this group.
Part numbers include WJB / INMOTION PARTS RB6203Z, WJB / INMOTION PARTS RB6201Z and NATIONAL 203S, among others listed above.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 9A78DT | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| DEKA Popular | 9A34R | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| DEKA | 9A34 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| DEKA | 9A24F | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| EXIDE | MX24 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 24 | View on Amazon |
| FULLRIVER | FT96527F | 🇺🇸 US 🇨🇦 CA | BCI Group 27F(Length X Width X Height) 12.09 In x 6.65 In x 9.33 In | View on Amazon |
| FVP | P24AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 24 | View on Amazon |
| FVP | P24RAGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 24 | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER | FT96527 | 🇺🇸 US 🇨🇦 CA | BCI Group 27(Length X Width X Height) 12.09 In x 6.65 In x 9.33 In | 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.
9 Battery parts are listed for the 1978 Alfa Romeo Spider, from DEKA, FULLRIVER, FVP and 1 other brand. DEKA 9A78DT carries the "Popular" badge.
The AGM (Extended Life) section lists 8 options from DEKA, FVP, EXIDE and 1 other brand — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A78DT is listed in this group.
The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT96527 is listed in this group.
Part numbers include DEKA 9A78DT, DEKA 9A34R and DEKA 9A34, among others listed above.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 00802 | 🇺🇸 US 🇨🇦 CA | Black4 Gauge | View on Amazon |
| DEKA | 00286 | 🇺🇸 US 🇨🇦 CA | Red4 Gauge | View on Amazon |
| DEKA | 00297 | 🇺🇸 US 🇨🇦 CA | Red4 Gauge | View on Amazon |
| DEKA | 00801 | 🇺🇸 US 🇨🇦 CA | Black4 Gauge | View on Amazon |
| DEKA | 00296 | 🇺🇸 US 🇨🇦 CA | Red4 Gauge | 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.
5 Battery Cable parts for the 1978 Alfa Romeo Spider come from DEKA. The "Popular" part is DEKA 00802.
This group includes DEKA 00802, DEKA 00286 and DEKA 00297 and the remaining parts above.
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.
DEKA supplies both parts for the 1978 Alfa Romeo Spider.
Part numbers include 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 |
| FAMOUS BRAND | FCA1028 | 🇺🇸 US 🇨🇦 CA | Flasher Directional | View on Amazon |
| STANDARD MOTOR PRODUCTS | EFL2 | 🇺🇸 US 🇨🇦 CA | Turn Signal | View on Amazon |
| WELLS | 1R2195 | 🇺🇸 US 🇨🇦 CA | Turn Signal | View on Amazon |
This table covers the flasher units that blink the turn signals and hazards.
4 Flasher parts are listed for the 1978 Alfa Romeo Spider, from BUSSMANN, FAMOUS BRAND, STANDARD MOTOR PRODUCTS and 1 other brand.
Part numbers include BUSSMANN 550, FAMOUS BRAND FCA1028 and STANDARD MOTOR PRODUCTS EFL2, among others listed above.
Horn
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HN19 | 🇺🇸 US 🇨🇦 CA | High Tone | View on Amazon |
| STANDARD MOTOR PRODUCTS | HN19T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
This table covers the horns mounted in the front of the vehicle.
STANDARD MOTOR PRODUCTS supplies both parts for the 1978 Alfa Romeo Spider.
Listed part numbers: STANDARD MOTOR PRODUCTS HN19 and STANDARD MOTOR PRODUCTS HN19T.
Starter Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | GB288 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the brushes inside the starter motor.
One part is listed for the 1978 Alfa Romeo Spider — STANDARD MOTOR PRODUCTS GB288.
Starter Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 16531 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY | 16531 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY | 16531 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER | 16531 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
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.
4 Starter Motor parts for the 1978 Alfa Romeo Spider come from 4 brands — FVP, PURE ENERGY, REMY and 1 other brand.
Listed part numbers: FVP 16531, plus the other parts above.
Starter Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | SS255 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
This group shows a single part: STANDARD MOTOR PRODUCTS SS255.
Voltage Regulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | VR124 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1V1025 | 🇺🇸 US 🇨🇦 CA | with Bosch Alternator | View on Amazon |
This table covers the regulators that control alternator output voltage.
2 Voltage Regulator parts are listed for the 1978 Alfa Romeo Spider, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS VR124 and WELLS 1V1025.
Buying Electrical Parts for a 1978 Alfa Romeo Spider
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 2.0L 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 and Alternator / Generator End Bearing .
Frequently Asked Questions
How many electrical parts fit the 1978 Alfa Romeo Spider?
Our catalog currently lists 43 electrical parts for the 1978 Alfa Romeo Spider across 13 subcategories and 16 brands, covering the 2.0L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 1978 Alfa Romeo Spider?
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 1978 Alfa Romeo Spider 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 1978 Alfa Romeo Spider?
Every part on this page is matched to the 2.0L 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 1978 Alfa Romeo Spider
Electrical Parts for Other Alfa Romeo Spider 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.