The 1966 Austin Mini 850 has 23 ignition parts with verified fitment on this page — 4 part types and 8 brands, covering the 848cc L4 engine. Each part includes a manufacturer part number and application notes.
The ignition system on the 1966 Austin Mini 850 delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Ignition Coil (11 parts), Spark Plug (10 parts) and Ignition Conversion Kit (1 part). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 848cc L4 — the only engine offered in the 1966 Austin Mini 850.
The most listed brands for 1966 Austin Mini 850 ignition parts are NGK (6 parts), STANDARD MOTOR PRODUCTS (4 parts) and ACDELCO (3 parts), plus 5 more brands. Quality grades include Copper / Nickel, Standard Replacement and Economy.
5 parts on this 1966 Austin Mini 850 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SKP SKUC12 (Ignition Coil) and NGK 6637 (Spark Plug). Click any part number to see every vehicle that part fits.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SKUC12 | 🇺🇸 US | with 12 Volt Systemfor with External Resistor. | View on Amazon |
| FVP | UC15F | 🇺🇸 US | with 12 Volt Systemwithout External Resistor | View on Amazon |
| FVP | UC12F | 🇺🇸 US | with 12 Volt Systemwith External Resistor | View on Amazon |
| STANDARD MOTOR PRODUCTS | UC15T | 🇺🇸 US | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS | UC12T | 🇺🇸 US | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | U505 | 🇺🇸 US 🇨🇦 CA | Professional | View on Amazon |
| WELLS Popular | 5C1026 | 🇺🇸 US | Requires External Resistor: YES | View on Amazon |
| NGK | 48863 | 🇺🇸 US | Internal Resistor CoilConnections May be Eyelet or Spade | View on Amazon |
| STANDARD MOTOR PRODUCTS | UC15 | 🇺🇸 US | with 12 Volt Systemwithout External Resistor | View on Amazon |
| STANDARD MOTOR PRODUCTS | UC12 | 🇺🇸 US | with 12 Volt Systemwith External Resistor | View on Amazon |
| WELLS | 5C1019 | 🇺🇸 US | Used on most import products with 12 Volt system with Internal resistorUniversal 12 Volt Coil | 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.
11 Ignition Coil parts are listed for the 1966 Austin Mini 850, from STANDARD MOTOR PRODUCTS, FVP, WELLS and 3 other brands. SKP SKUC12 carries the "Popular" badge.
In the Economy grade, FVP, STANDARD MOTOR PRODUCTS and SKP supply 5 parts: the catalog's value-priced group. A representative part number is SKP SKUC12.
The Standard Replacement section lists 6 options from WELLS, STANDARD MOTOR PRODUCTS, ACDELCO and 1 other brand — built to original-equipment specification. ACDELCO U505 is listed in this group.
Ignition Conversion Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1A4222 | 🇺🇸 US | with Lucas Distributor # 25D4with Vacuum Advance | View on Amazon |
This table covers the Ignition Conversion kits.
This group shows a single part: WELLS 1A4222.
Spark Plug
Summary: Notes include pre-set gaps of 0.025", 0.026", 0.032", 0.035", 0.036" and 0.040". Replacement brands in this table include NGK, ACDELCO and CHAMPION.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | R42XLS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| CHAMPION | 120 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.026" | View on Amazon |
| CHAMPION | 123 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| NGK | 6427 | 🇺🇸 US | V-PowerPre-Set Gap: 0.032" | View on Amazon |
| NGK | 7131 | 🇺🇸 US | StandardPre-Set Gap: 0.036" | View on Amazon |
| NGK | 4008 | 🇺🇸 US | StandardPre-Set Gap: 0.032" | 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 |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular | 6637 | 🇺🇸 US | Iridium IXPre-Set Gap: 0.032" | View on Amazon |
| SKP | SP1041 | 🇺🇸 US | 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 | G-PowerPre-Set Gap: 0.040" | 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.
10 Spark Plug parts for the 1966 Austin Mini 850 come from 4 brands — NGK, ACDELCO, CHAMPION and 1 other brand. The "Popular" part is NGK 6637.
The Copper / Nickel section lists 6 options from NGK, CHAMPION and ACDELCO — grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. ACDELCO R42XLS is listed in this group.
The Double Platinum (lasts up to 3x longer than Copper / Nickel) section lists 1 option from ACDELCO — 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, NGK and SKP supply 2 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 1 option from NGK — 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 Wire
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| B&B | R410028224 | 🇺🇸 US | OML: The Platinum Racing Wire | View on Amazon |
This table covers the Spark Plug wires.
One part is listed for the 1966 Austin Mini 850 — B&B R410028224.
Buying Ignition Parts for a 1966 Austin Mini 850
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 848cc 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: Ignition Coil and Spark Plug .
Frequently Asked Questions
How many ignition parts fit the 1966 Austin Mini 850?
Our catalog currently lists 23 ignition parts for the 1966 Austin Mini 850 across 4 subcategories and 8 brands, covering the 848cc L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 1966 Austin Mini 850?
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 Austin Mini 850?
Notes on this page include pre-set gaps of 0.025", 0.026", 0.032", 0.035", 0.036" and 0.040". 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 Austin Mini 850 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 Austin Mini 850?
Every part on this page is matched to the 848cc 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 Austin Mini 850
Ignition Parts for Other Austin Mini 850 Years
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