21 Ignition parts are listed for the 2021 Acura NSX, in 4 part types, covering the 3.5L V6 ELECTRIC/GAS Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The ignition system on the 2021 Acura NSX delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Crankshaft Position Sensor (9 parts), Camshaft Position Sensor (7 parts) and Ignition Coil (3 parts). The other 1 part type covers the remaining 2 parts.
Every part on this page is matched to the 3.5L V6 ELECTRIC/GAS Turbocharged — the only engine offered in the 2021 Acura NSX.
The most listed brands for 2021 Acura NSX ignition parts are STANDARD MOTOR PRODUCTS (4 parts), HOLSTEIN (2 parts) and PRENCO (2 parts), plus 8 more brands. Quality grades include Standard Replacement, Economy and Premium.
4 parts on this 2021 Acura NSX page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ASTEMO / HITACHI CPS0222 (Camshaft Position Sensor) and STANDARD MOTOR PRODUCTS PC813T (Crankshaft Position Sensor). Click any part number to see every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2CAM0352 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PRENCO | 4E1225 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ASTEMO / HITACHI Popular | CPS0222 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular | PC978 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI | SS11375 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS | 2351775 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS | 5S13536 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the sensors that report camshaft position to the ECU. 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.
7 Camshaft Position Sensor parts are listed for the 2021 Acura NSX, from HOLSTEIN, PRENCO, ASTEMO / HITACHI and 4 other brands. ASTEMO / HITACHI CPS0222 carries the "Popular" badge.
In the Economy grade, HOLSTEIN and PRENCO supply 2 parts: the catalog's value-priced group. A representative part number is HOLSTEIN 2CAM0352.
The Standard Replacement section lists 5 options from ASTEMO / HITACHI, STANDARD MOTOR PRODUCTS, DELPHI and 2 other brands — built to original-equipment specification. ASTEMO / HITACHI CPS0222 is listed in this group.
Listed part numbers: ASTEMO / HITACHI CPS0222, HOLSTEIN 2CAM0352 and PRENCO 4E1225, plus the other parts above.
Crankshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC813T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| HOLSTEIN | 2CRK0261 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PRENCO | 4D1285 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM | S10319 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC813 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI | SS11389 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA | 358380461 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS | 2352084 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS | 5S15100 | 🇺🇸 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.
9 Crankshaft Position Sensor parts are listed for the 2021 Acura NSX, from STANDARD MOTOR PRODUCTS, HOLSTEIN, PRENCO and 5 other brands. STANDARD MOTOR PRODUCTS PC813T carries the "Popular" badge.
Economy: 4 parts, from STANDARD MOTOR PRODUCTS, HOLSTEIN, PRENCO and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS PC813T.
The Standard Replacement section: 5 options from STANDARD MOTOR PRODUCTS, DELPHI, HELLA and 2 other brands. STANDARD MOTOR PRODUCTS PC813 is listed in this group.
This group includes STANDARD MOTOR PRODUCTS PC813T, HOLSTEIN 2CRK0261 and PRENCO 4D1285 and the remaining parts above.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER | UF833 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ASTEMO / HITACHI | IGC0094 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 3 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | UF833 | 🇺🇸 US 🇨🇦 CA | 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.
3 Ignition Coil parts are listed for the 2021 Acura NSX, from ULTRA-POWER, ASTEMO / HITACHI and STANDARD MOTOR PRODUCTS.
Economy: 1 part, from ULTRA-POWER. A representative part number is ULTRA-POWER UF833.
The Premium section lists 1 option from ASTEMO / HITACHI — a step above OE specification in materials, tolerances or warranty terms. ASTEMO / HITACHI IGC0094 is listed in this group.
The Standard Replacement section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS UF833 is listed in this group.
This group includes ULTRA-POWER UF833 and ASTEMO / HITACHI IGC0094 and the remaining parts above.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK | 94220 | 🇺🇸 US 🇨🇦 CA | Iridium IX | View on Amazon |
| NGK | LKAR8CIXPS | 🇺🇸 US 🇨🇦 CA | Iridium IX | 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.
2 Spark Plug parts for the 2021 Acura NSX come from NGK.
This group includes NGK 94220 and NGK LKAR8CIXPS.
Buying Ignition Parts for a 2021 Acura NSX
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 3.5L V6 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: Crankshaft Position Sensor and Camshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2021 Acura NSX?
Our catalog currently lists 21 ignition parts for the 2021 Acura NSX across 4 subcategories and 11 brands, covering the 3.5L V6 ELECTRIC/GAS Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 2021 Acura NSX?
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 Acura NSX?
Notes on this page include a 0.028" pre-set gap. 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 Acura NSX 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 Acura NSX?
Every part on this page is matched to the 3.5L V6 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 Acura NSX
Ignition Parts for Other Acura NSX Years
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