Aston.club Independent ownership knowledge

Spark plugs

V12 · 6.0-litre naturally aspirated · 2009–2018

Part numbers and fitment

Check the exact plug designation. Heat range, thread and electrode design matter; engine size alone is not a part reference.

NGK original-equipment spark plug

Part link

Verified OE cross-reference

Aston Martin
CD33-12405-AACD33-12405-AA-PK
NGK
SITR7A11G94949
Application
V12 Vantage V12. V12 Vantage with AM28 engine, including applicable S, Roadster and AMR cars.
Years
2013–2018; AM28 engine only
Full-set quantity
12

CD33-12405-AA-PK is a four-plug pack. A full set is 12 plugs: three Aston Martin packs. NGK 94949 is the stock number for SITR7A11G; check the seller’s pack size.

Before ordering

  • Only the listed 2013–2018; AM28 engine only application is covered. Confirm engine, build date and market.
  • Use this match only for a VIN-specific catalogue reference CD33-12405-AA or four-plug pack CD33-12405-AA-PK. Earlier versions and other generations may use different plugs.
  • Confirm the current catalogue revision before ordering. Modified engines require a separate specification.
Evidence for this match

NGK maps CD33-12405-AA to SITR7A11G (94949). The genuine Aston listing identifies the NGK four-plug pack. Model-specific years and engine restrictions limit the application; a broad supplier model list does not establish every variant.

Reviewed

Sources and research

The sources below were checked on the dates shown. They support what this page says about the car. They do not show how often a fault occurs, or the condition of one particular vehicle. Where a build year, production total or service figure is still uncertain, confirm it against the factory record and the VIN.