The 2021 Polestar Polestar 1 has 5 ignition parts with verified fitment on this page — 2 part types and 2 brands, covering the 2.0L L4 ELECTRIC/GAS Turbocharged engine. Each part includes a manufacturer part number and application notes.
The ignition system on the 2021 Polestar Polestar 1 delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. All 5 listed parts are Spark Plug (4 parts) and Crankshaft Position Sensor (1 part).
Every part on this page is matched to the 2.0L L4 ELECTRIC/GAS Turbocharged — the only engine offered in the 2021 Polestar Polestar 1.
The most listed brands for 2021 Polestar Polestar 1 ignition parts are NGK (4 parts) and DELPHI (1 part). Quality grades include Iridium and Ruthenium.
Each part number listed for the 2021 Polestar Polestar 1 opens a page with every vehicle that part fits.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI | SS12386 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
One part is listed for the 2021 Polestar Polestar 1 — DELPHI SS12386.
Spark Plug
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK | 95660 | 🇺🇸 US 🇨🇦 CA | Laser IridiumPre-Set Gap: 0.030" | View on Amazon |
| NGK | 94220 | 🇺🇸 US 🇨🇦 CA | Iridium IX | View on Amazon |
| NGK | LKAR8CIXPS | 🇺🇸 US 🇨🇦 CA | Iridium IX | View on Amazon |
Ruthenium (maximum durability & ignitability)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK | 91784 | 🇺🇸 US 🇨🇦 CA | Ruthenium HX High IgnitabilityPre-Set Gap: 0.032" | 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 2021 Polestar Polestar 1 come from NGK.
In the Iridium (lasts up to 4x longer than Copper / Nickel) grade, NGK supplies 3 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 95660.
The Ruthenium (maximum durability & ignitability) section lists 1 option from NGK — grouped under the catalog's "Ruthenium (maximum durability & ignitability)" designation — the notes column spells out what sets them apart. NGK 91784 is listed in this group.
Listed part numbers: NGK 95660, NGK 94220 and NGK LKAR8CIXPS, plus the other parts above.
Buying Ignition Parts for a 2021 Polestar Polestar 1
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 2.0L L4 ELECTRIC/GAS Turbocharged 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 Crankshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2021 Polestar Polestar 1?
Our catalog currently lists 5 ignition parts for the 2021 Polestar Polestar 1 across 2 subcategories and 2 brands, covering the 2.0L L4 ELECTRIC/GAS Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 2021 Polestar Polestar 1?
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 2021 Polestar Polestar 1?
Notes on this page include pre-set gaps of 0.028", 0.030" and 0.032". 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 2021 Polestar Polestar 1 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 2021 Polestar Polestar 1?
Every part on this page is matched to the 2.0L L4 ELECTRIC/GAS Turbocharged 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 2021 Polestar Polestar 1
Ignition Parts for Other Polestar Polestar 1 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.