This page lists 11 ignition parts for the 1966 Fiat 124, across 4 part types, covering the 1.2L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
The ignition system on the 1966 Fiat 124 delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Spark Plug (6 parts), Spark Plug Wire (3 parts) and Condenser / Capacitor (1 part). The other 1 part type covers the remaining 1 part.
The 1966 Fiat 124 came with a single engine, the 1.2L L4, and every part is verified against it.
8 brands supply ignition parts for the 1966 Fiat 124, led by CHAMPION (3 parts), B&B (2 parts) and STANDARD MOTOR PRODUCTS (1 part), plus 5 more brands. Quality grades include Copper / Nickel, Iridium and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1966 Fiat 124. 2 parts have it, including ACDELCO R42XLS (Spark Plug) and CHAMPION 104 (Spark Plug). Each part number opens a page with every vehicle that part fits.
Condenser / Capacitor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DU116 | 🇺🇸 US | View on Amazon |
This table covers the capacitors used in this electrical or A/C circuit.
This group shows a single part: STANDARD MOTOR PRODUCTS DU116.
Ignition Breaker Points
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 4P1023 | 🇺🇸 US | with Ducellier Ignition | View on Amazon |
This table covers the breaker points in a points-type distributor.
This group shows a single part: WELLS 4P1023.
Spark Plug
Summary: Notes include pre-set gaps of 0.025", 0.032" and 0.035". Replacement brands in this table include CHAMPION, ACDELCO and AUTOLITE.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | R42XLS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| CHAMPION Popular | 104 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION | 803 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION | 803C | 🇺🇸 US | Copper Plus | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOLITE | XP63 | 🇺🇸 US | Iridium XPDisplay Pack | View on Amazon |
| SKP | SP1041 | 🇺🇸 US | Tapered Ground Electrode with Platinum Chip | 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.
6 Spark Plug parts are listed for the 1966 Fiat 124, from CHAMPION, ACDELCO, AUTOLITE and 1 other brand. ACDELCO R42XLS carries the "Popular" badge.
In the Copper / Nickel grade, CHAMPION and ACDELCO supply 4 parts: grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO R42XLS.
The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 2 options from AUTOLITE and SKP — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. AUTOLITE XP63 is listed in this group.
Part numbers include ACDELCO R42XLS, CHAMPION 104 and CHAMPION 803, among others listed above.
Spark Plug Wire
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| B&B | S428224 | 🇺🇸 US | Suppressor Wire Set | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS | 9400 | 🇺🇸 US | United-PackardSet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| B&B | M428224 | 🇺🇸 US | Platinum Class Laser Mag | View on Amazon |
This table covers the Spark Plug wires.
3 Spark Plug Wire parts for the 1966 Fiat 124 come from 2 brands — B&B and UNITED MOTOR PRODUCTS.
The Economy section lists 1 option from B&B — the catalog's value-priced group. B&B S428224 is listed in this group.
In the Premium grade, UNITED MOTOR PRODUCTS supplies 1 part: a step above OE specification in materials, tolerances or warranty terms. A representative part number is UNITED MOTOR PRODUCTS 9400.
In the Standard Replacement grade, B&B supplies 1 part: built to original-equipment specification. A representative part number is B&B M428224.
Part numbers include B&B S428224, UNITED MOTOR PRODUCTS 9400 and B&B M428224.
Buying Ignition Parts for a 1966 Fiat 124
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 1.2L 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 Spark Plug Wire .
Frequently Asked Questions
How many ignition parts fit the 1966 Fiat 124?
Our catalog currently lists 11 ignition parts for the 1966 Fiat 124 across 4 subcategories and 8 brands, covering the 1.2L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 1966 Fiat 124?
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 1966 Fiat 124?
Notes on this page include pre-set gaps of 0.025", 0.032" and 0.035". 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 1966 Fiat 124 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 1966 Fiat 124?
Every part on this page is matched to the 1.2L 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 1966 Fiat 124
Ignition Parts for Other Fiat 124 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.