Acura (Honda) Workshop Service and Repair Manuals

Spark Plug: Specifications

K20A3 Engine (Non Type S)

Spark Plug Type

NGK  ..............................................................................................................................................................................................................  IZFR6K-11
DENSO  ...................................................................................................................................................................................................  SKJ20DR-M11

K20A2 Engine (Type S)

Spark Plug Type

NGK  ..............................................................................................................................................................................................................  IFR7G-11K
NGK  ...........................................................................................................................................................................................................  IFR7G-11KS
DENSO  .....................................................................................................................................................................................................  SK22PR-M11
DENSO  ...................................................................................................................................................................................................  SK22PR-M11S

K20Z1 Engine (2005 models)

Spark Plug Type

NGK  ...........................................................................................................................................................................................................  IFR7G-11KS
DENSO  ...................................................................................................................................................................................................  SK22PR-M11S

Gap 

Standard or New .........................................................................................................................................................  1.0 - 1.1 mm (0.039 - 0.043 in)

Torque ................................................................................................................................................... IFR7G-11KS, SK22PR-M11S  25 N.m (18 lb.ft)

Torque .................................................................................................................................. All except IFR7G-11KS, SK22PR-M11S  18 N.m (13 lb.ft)