NGK original-equipment spark plug
Verified OE cross-reference
- Aston Martin
- CD33-12405-AACD33-12405-AA-PK
- NGK
- SITR7A11G94949
- Application
- DBS V12. Original DBS V12 with AM4R9 engine.
- Years
- 2008–2012; AM4R9 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 2008–2012; AM4R9 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.
- NGK manufacturer cross-reference: CD33-12405-AA to SITR7A11G (94949), printed page 85 — NGK Spark Plugs (UK). Checked .
- Genuine Aston Martin NGK spark plugs, four-plug pack — Aston Store. Checked .
- DB11 V12 spark plug application — Flying Spares. Checked .
- NGK vehicle applications: Aston Martin, printed page 12 — NGK Spark Plugs (UK). Checked .
Reviewed