11 Ignition parts are listed for the 1957 Morgan Plus 4, in 6 part types, covering all 3 engine options (1.2L L4, 2.0L L4 and 2.1L L4). Each one has a brand, a manufacturer part number and notes that say where it fits.
The ignition system on the 1957 Morgan Plus 4 delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Spark Plug (4 parts), Condenser / Capacitor (2 parts) and Ignition Conversion Kit (2 parts). The other 3 part types cover the remaining 3 parts.
The 1957 Morgan Plus 4 was sold with 3 engines. 8 parts fit every engine; the other 3 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1957 Morgan Plus 4 ignition parts are STANDARD MOTOR PRODUCTS (5 parts), WELLS (2 parts) and AUTOLITE (2 parts), plus 2 more brands. Quality grades include Economy and Standard Replacement.
Each part number listed for the 1957 Morgan Plus 4 opens a page with every vehicle that part fits.
Condenser / Capacitor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1957 Plus 4 engines | LU206T | 🇺🇸 US | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1957 Plus 4 engines | LU206 | 🇺🇸 US | View on Amazon |
This table covers the capacitors used in this electrical or A/C circuit.
STANDARD MOTOR PRODUCTS supplies both parts for the 1957 Morgan Plus 4. All of them fit every engine offered in the 1957 Plus 4.
In the Economy grade, STANDARD MOTOR PRODUCTS supplies 1 part: the catalog's value-priced group. A representative part number is STANDARD MOTOR PRODUCTS LU206T.
The Standard Replacement section lists 1 option from STANDARD MOTOR PRODUCTS — built to original-equipment specification. STANDARD MOTOR PRODUCTS LU206 is listed in this group.
Part numbers include STANDARD MOTOR PRODUCTS LU206T and STANDARD MOTOR PRODUCTS LU206.
Distributor Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1957 Plus 4 engines | LU401 | 🇺🇸 US | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS LU401.
Distributor Rotor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1957 Plus 4 engines | LU300 | 🇺🇸 US | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS LU300.
Ignition Breaker Points
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 1957 Plus 4 engines | LU1316 | 🇺🇸 US | View on Amazon |
This table covers the breaker points in a points-type distributor.
One part is listed for the 1957 Morgan Plus 4 — STANDARD MOTOR PRODUCTS LU1316.
Ignition Conversion Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 1957 Plus 4 engines | 1A4232 | 🇺🇸 US | Lucas Distributor # DM2P4, Lobe Sensor Module12 Volt | View on Amazon |
| WELLS Fits: 2.0L L4, 2.1L L4 | 1A4160 | 🇺🇸 US | Lucas Distributor # DM2P4, Lobe Sensor Module, Early DM2 Distributor12 Volt | View on Amazon |
This table covers the Ignition Conversion kits.
2 Ignition Conversion Kit parts for the 1957 Morgan Plus 4 come from WELLS. 1 part fits every engine; the other 1 is engine-specific.
Listed part numbers: WELLS 1A4232 and WELLS 1A4160.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: all 1957 Plus 4 engines | R44F | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| AUTOLITE Fits: 1.2L L4 | 425 | 🇺🇸 US | Center Electrode Projection: Short ProjectionCopper Resistor | View on Amazon |
| AUTOLITE Fits: 2.0L L4, 2.1L L4 | 275 | 🇺🇸 US | Copper Non-ResistorPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION Fits: all 1957 Plus 4 engines | 896 | 🇺🇸 US | Copper Plus | 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.
4 Spark Plug parts for the 1957 Morgan Plus 4 come from 3 brands — AUTOLITE, ACDELCO and CHAMPION. 2 parts fit every engine; the other 2 are engine-specific.
This group includes ACDELCO R44F, AUTOLITE 425 and AUTOLITE 275 and the remaining parts above.
Buying Ignition Parts for a 1957 Morgan Plus 4
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 and Condenser / Capacitor .
Frequently Asked Questions
How many ignition parts fit the 1957 Morgan Plus 4?
Our catalog currently lists 11 ignition parts for the 1957 Morgan Plus 4 across 6 subcategories and 5 brands, covering all 3 engine options (1.2L L4, 2.0L L4 and 2.1L L4). Each part is matched to the engine(s) it fits.
Do ignition parts differ between 1957 Morgan Plus 4 engines?
Some do. 8 parts fit every engine; the other 3 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 Morgan Plus 4?
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 Morgan Plus 4?
Notes on this page include pre-set gaps of 0.025" and 0.030". 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 Morgan Plus 4 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 Morgan Plus 4?
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 Morgan Plus 4
Ignition Parts for Other Morgan Plus 4 Years
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