This page lists 7 ignition parts for the 1957 Fairthorpe Atom, across 1 part type, covering all 4 engine options (249cc L1, 322cc L2, 348cc L1 and 646cc L2). Every part shows its brand, manufacturer part number and fitment notes.
On the 1957 Fairthorpe Atom, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. Every listed part is a Spark Plug.
The 1957 Fairthorpe Atom was sold with 4 engines. 3 parts fit every engine; the other 4 are engine-specific. Each part shows which engine(s) it fits.
4 brands supply ignition parts for the 1957 Fairthorpe Atom, led by CHAMPION (4 parts), ACDELCO (1 part) and AUTOLITE (1 part), plus 1 more brand.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1957 Fairthorpe Atom. 1 part has it: ACDELCO R44XL (Spark Plug). Each part number opens a page with every vehicle that part fits.
Spark Plug
Summary: Notes include pre-set gaps of 0.024", 0.025", 0.026" and 0.034". Replacement brands in this table include CHAMPION, ACDELCO and AUTOLITE.
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1957 Atom engines | R44XL | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| AUTOLITE Fits: all 1957 Atom engines | 404 | 🇺🇸 US | Copper ResistorPre-Set Gap: 0.034" | View on Amazon |
| CHAMPION Fits: 249cc L1, 322cc L2, 348cc L1 | 120 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.026" | View on Amazon |
| CHAMPION Fits: 249cc L1, 322cc L2, 348cc L1 | 123 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION Fits: 646cc L2 | 306 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION Fits: 646cc L2 | 830 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| MOTORCRAFT Fits: all 1957 Atom engines | SP466 | 🇺🇸 US | Copper | 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.
7 Spark Plug parts are listed for the 1957 Fairthorpe Atom, from CHAMPION, ACDELCO, AUTOLITE and 1 other brand. ACDELCO R44XL carries the "Popular" badge. 3 parts fit every engine; the other 4 are engine-specific.
This group includes ACDELCO R44XL, AUTOLITE 404 and CHAMPION 120 and the remaining parts above.
Buying Ignition Parts for a 1957 Fairthorpe Atom
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Some ignition parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- 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 .
Frequently Asked Questions
How many ignition parts fit the 1957 Fairthorpe Atom?
Our catalog currently lists 7 ignition parts for the 1957 Fairthorpe Atom across 1 subcategory and 4 brands, covering all 4 engine options (249cc L1, 322cc L2, 348cc L1 and 646cc L2). Each part is matched to the engine(s) it fits.
Do ignition parts differ between 1957 Fairthorpe Atom engines?
Some do. 3 parts fit every engine; the other 4 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of ignition problems on a 1957 Fairthorpe Atom?
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 1957 Fairthorpe Atom?
Notes on this page include pre-set gaps of 0.024", 0.025", 0.026" and 0.034". 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 1957 Fairthorpe Atom 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 1957 Fairthorpe Atom?
First match the engine — each row shows which engine(s) the part fits. 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 1957 Fairthorpe Atom
Switch vehicle or jump to a subcategory
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.