2021 Infiniti Q50 Ignition Parts

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. Read more

12 Camshaft Position Sensor parts for the 2021 Infiniti Q50 come from 9 brands — STANDARD MOTOR PRODUCTS, AUTOTECNICA, ASTEMO / HITACHI and 6 other brands. The "Popular" part is HOLSTEIN 2CAM0192.

The Economy section lists 4 options from HOLSTEIN, STANDARD MOTOR PRODUCTS, AUTOTECNICA and 1 other brand — the catalog's value-priced group. HOLSTEIN 2CAM0192 is listed in this group.

In the Standard Replacement grade, ASTEMO / HITACHI, STANDARD MOTOR PRODUCTS, DELPHI and 3 other brands supply 7 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS PC775.

1 further part sits outside the graded sections, with the same engine-level match.

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. Read more

11 Crankshaft Position Sensor parts for the 2021 Infiniti Q50 come from 10 brands — AUTOTECNICA, ULTRA-POWER, HOLSTEIN and 7 other brands. The "Popular" part is ULTRA-POWER 5S11488.

The Economy section: 5 options from ULTRA-POWER, AUTOTECNICA, HOLSTEIN and 2 other brands. ULTRA-POWER 5S11488 is listed in this group.

Standard Replacement: 5 parts, from DELPHI, ASTEMO / HITACHI, DENSO and 2 other brands. A representative part number is DELPHI SS11988.

1 further part sits outside the graded sections, with the same engine-level match.

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. Read more

12 Ignition Coil parts for the 2021 Infiniti Q50 come from 12 brands — ULTRA-POWER, FAMOUS BRAND, PRENCO and 9 other brands. The "Popular" part is ULTRA-POWER UF819.

The Economy section: 4 options from ULTRA-POWER, FAMOUS BRAND, PRENCO and 1 other brand. ULTRA-POWER UF819 is listed in this group.

In the Premium grade, ASTEMO / HITACHI and DELPHI supply 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is ASTEMO / HITACHI IGC0098.

Standard Replacement: 5 parts, from NGK, BECK/ARNLEY, DENSO and 2 other brands. A representative part number is NGK 49182.

1 further part sits outside the graded sections, with the same engine-level match.

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. Read more

4 Spark Plug parts are listed for the 2021 Infiniti Q50, from NGK, BOSCH and DENSO.

The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 3 options from BOSCH, DENSO and NGK — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. BOSCH 8505 is listed in this group.

In the Ruthenium (maximum durability & ignitability) grade, NGK supplies 1 part: grouped under the catalog's "Ruthenium (maximum durability & ignitability)" designation — the notes column spells out what sets them apart. A representative part number is NGK 91784.

Part numbers include BOSCH 8505, DENSO 3457 and NGK 96008, among others listed above.