The 1978 Fiat 128 has 59 ignition parts with verified fitment on this page — 9 part types and 19 brands, covering the 1.3L L4 engine. Each part includes a manufacturer part number and application notes.
On the 1978 Fiat 128, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. Most of the listed parts are Spark Plug (21 parts), Ignition Coil (14 parts) and Ignition Control Module (ICM) (6 parts). The other 6 part types cover the remaining 18 parts.
Every part on this page is matched to the 1.3L L4 — the only engine offered in the 1978 Fiat 128.
The most listed brands for 1978 Fiat 128 ignition parts are STANDARD MOTOR PRODUCTS (12 parts), NGK (7 parts) and WELLS (5 parts), plus 16 more brands. Quality grades include Standard Replacement, Economy and Copper / Nickel.
12 parts on this 1978 Fiat 128 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SPECTRA PREMIUM C632 (Ignition Coil) and STANDARD MOTOR PRODUCTS LX301T (Ignition Control Module (ICM)). Click any part number to see every vehicle that part fits.
Condenser / Capacitor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DU116 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the capacitors used in this electrical or A/C circuit.
One part is listed for the 1978 Fiat 128 — STANDARD MOTOR PRODUCTS DU116.
Distributor Cap
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BWD/NIEHOFF | C583 | 🇺🇸 US 🇨🇦 CA | DUCELLIERVERTICAL TOWERS | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DU420 | 🇺🇸 US 🇨🇦 CA | with Vertical Distributor Cap Towersvendor # Ducellier | View on Amazon |
| WELLS | 5D1114 | 🇺🇸 US 🇨🇦 CA | Sedan | View on Amazon |
| WELLS | 3D1095 | 🇺🇸 US 🇨🇦 CA | Includes Rotor | View on Amazon |
This table covers the Distributor caps. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
4 Distributor Cap parts for the 1978 Fiat 128 come from 3 brands — WELLS, BWD/NIEHOFF and STANDARD MOTOR PRODUCTS.
The Economy section lists 1 option from BWD/NIEHOFF — the catalog's value-priced group. BWD/NIEHOFF C583 is listed in this group.
In the Standard Replacement grade, WELLS and STANDARD MOTOR PRODUCTS supply 3 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS DU420.
Part numbers include BWD/NIEHOFF C583, STANDARD MOTOR PRODUCTS DU420 and WELLS 5D1114, among others listed above.
Distributor Rotor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LILAND GLOBAL | MA307LG | 🇺🇸 US 🇨🇦 CA | PremiumBlack Brass | View on Amazon |
| STANDARD MOTOR PRODUCTS | DU313 | 🇺🇸 US 🇨🇦 CA | vendor # Ducellier | View on Amazon |
| STANDARD MOTOR PRODUCTS | MA307 | 🇺🇸 US 🇨🇦 CA | Distributor Number SM800AK, BK, CX, EXvendor # Marelli | View on Amazon |
| WELLS | 4R1034 | 🇺🇸 US 🇨🇦 CA | Sedan | View on Amazon |
This table covers the Distributor rotors. Typical signs include shudder under braking, or a lip at the outer edge. Do not put new pads on a rotor that is below minimum thickness.
4 Distributor Rotor parts for the 1978 Fiat 128 come from 3 brands — STANDARD MOTOR PRODUCTS, LILAND GLOBAL and WELLS.
Part numbers include LILAND GLOBAL MA307LG, STANDARD MOTOR PRODUCTS DU313 and STANDARD MOTOR PRODUCTS MA307, among others listed above.
Ignition Breaker Points
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DU2135 | 🇺🇸 US 🇨🇦 CA | vendor # Ducellier | View on Amazon |
| WELLS | 4P1024 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the breaker points in a points-type distributor.
2 Ignition Breaker Points parts are listed for the 1978 Fiat 128, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS DU2135 and WELLS 4P1024.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular | C632 | 🇺🇸 US 🇨🇦 CA | Packwith External Resistor | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | UC15T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| FVP | UC15F | 🇺🇸 US 🇨🇦 CA | Internal Resistor Coil | View on Amazon |
| HOLSTEIN | 2IGC0058 | 🇺🇸 US 🇨🇦 CA | with internal resistor | View on Amazon |
| HOLSTEIN | 2IGC0146 | 🇺🇸 US 🇨🇦 CA | with External Resistor | View on Amazon |
| SKP | SKUF3T | 🇺🇸 US 🇨🇦 CA | Fits Coil Packor with internal resistor | View on Amazon |
| SPECTRA PREMIUM | C654 | 🇺🇸 US 🇨🇦 CA | Internal Resistor Coil | View on Amazon |
| WAI GLOBAL | CUF3 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | UC15 | 🇺🇸 US 🇨🇦 CA | Internal Resistor Coil | View on Amazon |
| BOSCH | 9220081083 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | UF2 | 🇺🇸 US 🇨🇦 CA | with External Resistor | View on Amazon |
| UNITED MOTOR PRODUCTS | C2 | 🇺🇸 US 🇨🇦 CA | with External Resistor | View on Amazon |
| UNITED MOTOR PRODUCTS | C15 | 🇺🇸 US 🇨🇦 CA | Internal Resistor Coil | View on Amazon |
| WELLS | 5C1057 | 🇺🇸 US 🇨🇦 CA | Requires External Resistor: YES | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
14 Ignition Coil parts are listed for the 1978 Fiat 128, from STANDARD MOTOR PRODUCTS, SPECTRA PREMIUM, HOLSTEIN and 6 other brands. SPECTRA PREMIUM C632 carries the "Popular" badge.
Economy: 8 parts, from SPECTRA PREMIUM, HOLSTEIN, STANDARD MOTOR PRODUCTS and 3 other brands. A representative part number is SPECTRA PREMIUM C632.
The Standard Replacement section: 6 options from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, BOSCH and 1 other brand. STANDARD MOTOR PRODUCTS UC15 is listed in this group.
Ignition Control Module (ICM)
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | LX301T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| ULTRA-POWER | LX301 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular | M1906 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN | 2IGM0036 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | LX301 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAI GLOBAL | DM1906 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Ignition control modules.
6 Ignition Control Module (ICM) parts are listed for the 1978 Fiat 128, from STANDARD MOTOR PRODUCTS, ULTRA-POWER, UNITED MOTOR PRODUCTS and 2 other brands. STANDARD MOTOR PRODUCTS LX301T carries the "Popular" badge.
Economy: 2 parts, from STANDARD MOTOR PRODUCTS and ULTRA-POWER. A representative part number is STANDARD MOTOR PRODUCTS LX301T.
The Standard Replacement section: 4 options from UNITED MOTOR PRODUCTS, HOLSTEIN, STANDARD MOTOR PRODUCTS and 1 other brand. UNITED MOTOR PRODUCTS M1906 is listed in this group.
This group includes STANDARD MOTOR PRODUCTS LX301T, ULTRA-POWER LX301 and UNITED MOTOR PRODUCTS M1906 and the remaining parts above.
Spark Plug
Summary: Notes include pre-set gaps of 0.024", 0.025", 0.030", 0.031", 0.032", 0.035", 0.036", 0.040", 0.041" and 0.044". Replacement brands in this table include NGK, CHAMPION and DENSO.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular | 7900 | 🇺🇸 US 🇨🇦 CA | NickelPre-Set Gap: 0.031" | View on Amazon |
| CHAMPION Popular | 415 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.032" | View on Amazon |
| NGK Popular | 4008 | 🇺🇸 US 🇨🇦 CA | StandardPre-Set Gap: 0.032" | View on Amazon |
| ACDELCO | R42XLS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| CHAMPION | 300 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.032" | View on Amazon |
| CHAMPION | 4151 | 🇺🇸 US 🇨🇦 CA | Copper PlusClassification: Champion Copper Plus Small Engine | View on Amazon |
| DENSO | 3066 | 🇺🇸 US 🇨🇦 CA | U-Groove ConventionalHex Size: 20.6 mm | View on Amazon |
| NGK | 6427 | 🇺🇸 US 🇨🇦 CA | V-PowerPre-Set Gap: 0.032" | View on Amazon |
| NGK | 7131 | 🇺🇸 US 🇨🇦 CA | StandardPre-Set Gap: 0.036" | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 41804 | 🇺🇸 US 🇨🇦 CA | ProfessionalDouble Platinum | View on Amazon |
| CHAMPION | 7415 | 🇺🇸 US 🇨🇦 CA | Double Platinum PowerPre-Set Gap: 0.032" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular | 6637 | 🇺🇸 US 🇨🇦 CA | Iridium IXPre-Set Gap: 0.032" | View on Amazon |
| CHAMPION | 9804 | 🇺🇸 US 🇨🇦 CA | IridiumPre-Set Gap: 0.03" | View on Amazon |
| DENSO | 5306 | 🇺🇸 US 🇨🇦 CA | Iridium PowerHex Size: 20.6 mm | View on Amazon |
| DENSO | 4709 | 🇺🇸 US 🇨🇦 CA | Iridium TTSolid Terminal | View on Amazon |
| SKP | SP1041 | 🇺🇸 US 🇨🇦 CA | Tapered Ground Electrode with Platinum Chip | View on Amazon |
Platinum (lasts up to 2x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular | 7084 | 🇺🇸 US 🇨🇦 CA | G-PowerPre-Set Gap: 0.040" | View on Amazon |
| ACDELCO | 4 | 🇺🇸 US 🇨🇦 CA | ProfessionalRapidfire | View on Amazon |
| BOSCH | 6737 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire PlatinumPre-Set Gap: 0.035" | View on Amazon |
| DENSO | 4502 | 🇺🇸 US 🇨🇦 CA | Platinum TTSolid Terminal | View on Amazon |
| NGK | 6764 | 🇺🇸 US 🇨🇦 CA | Platinumuse Iridium #6637 | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
21 Spark Plug parts for the 1978 Fiat 128 come from 6 brands — NGK, CHAMPION, DENSO and 3 other brands. The "Popular" part is BOSCH 7900.
The Copper / Nickel section lists 9 options from CHAMPION, NGK, BOSCH and 2 other brands — grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. BOSCH 7900 is listed in this group.
The Double Platinum (lasts up to 3x longer than Copper / Nickel) section lists 2 options from ACDELCO and CHAMPION — grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. ACDELCO 41804 is listed in this group.
In the Iridium (lasts up to 4x longer than Copper / Nickel) grade, DENSO, NGK, CHAMPION and 1 other brand supply 5 parts: grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is NGK 6637.
The Platinum (lasts up to 2x longer than Copper / Nickel) section lists 5 options from NGK, ACDELCO, BOSCH and 1 other brand — grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. NGK 7084 is listed in this group.
Spark Plug Non-Fouler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 42004 | 🇺🇸 US 🇨🇦 CA | 14mm Gasket Seat Long Reach | View on Amazon |
This table covers the non-foulers that space a spark plug away from oil fouling.
One part is listed for the 1978 Fiat 128 — DORMAN 42004.
Spark Plug Wire
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular | 54395 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| UNITED MOTOR PRODUCTS Popular | 9403 | 🇺🇸 US 🇨🇦 CA | SetUnited-Packard | View on Amazon |
| STANDARD MOTOR PRODUCTS | 55439 | 🇺🇸 US 🇨🇦 CA | IntermotorSet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| B&B | M439860 | 🇺🇸 US 🇨🇦 CA | Platinum Class Laser Mag | View on Amazon |
| STANDARD MOTOR PRODUCTS | 27409 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| WALKER PRODUCTS | 9241037 | 🇺🇸 US 🇨🇦 CA | Direct FitSet | View on Amazon |
This table covers the Spark Plug wires.
6 Spark Plug Wire parts are listed for the 1978 Fiat 128, from STANDARD MOTOR PRODUCTS, NGK, UNITED MOTOR PRODUCTS and 2 other brands. NGK 54395 carries the "Popular" badge.
The Premium section lists 3 options from NGK, UNITED MOTOR PRODUCTS and STANDARD MOTOR PRODUCTS — a step above OE specification in materials, tolerances or warranty terms. NGK 54395 is listed in this group.
The Standard Replacement section: 3 options from B&B, STANDARD MOTOR PRODUCTS and WALKER PRODUCTS. B&B M439860 is listed in this group.
This group includes NGK 54395, UNITED MOTOR PRODUCTS 9403 and STANDARD MOTOR PRODUCTS 55439 and the remaining parts above.
Buying Ignition Parts for a 1978 Fiat 128
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- 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 plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Spark Plug and Ignition Coil .
Frequently Asked Questions
How many ignition parts fit the 1978 Fiat 128?
Our catalog currently lists 59 ignition parts for the 1978 Fiat 128 across 9 subcategories and 19 brands, covering the 1.3L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 1978 Fiat 128?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 1978 Fiat 128?
Notes on this page include pre-set gaps of 0.024", 0.025", 0.030", 0.031", 0.032", 0.035", 0.036", 0.040", 0.041" and 0.044". Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
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 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 1978 Fiat 128?
Every part on this page is matched to the 1.3L L4 engine. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1978 Fiat 128
Ignition Parts for Other Fiat 128 Years
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