| 2303 | #(12180-B2020-) | Cap Sub-assy, Oil Filler | |
| 2303 | #(90041-19911-) | Bolt(for Head To Camshaft Bearing Cap) | |
| 2303 | #(90043-01262-) | Ring, O(for Cam Timing Oil Control Valve) | |
| 2303 | #(90301-14016-) | O Ring, Cam Position Sensor | |
| 2303 | #(90341-14013-) | Plug, W/head Taper Screw, No.1 | |
| 2303 | #(90430-37140-000) | Gasket(for Oil Filler Cap) | |
| 2303 | 11101-BZ151- | Head Sub-assy, Cylinder | |
| 2303 | 11101-BZ240- | Head Sub-assy, Cylinder | |
| 2303 | 11115-BZ040- | Gasket, Cylinder Head | |
| 2303 | 11115-BZ130- | Gasket, Cylinder Head | |
| 2303 | 11122-BZ010- | Bush, Exhaust Valve Guide | |
| 2303 | 11122-BZ010- | Bush, Intake Valve Guide | |
| 2303 | 11123-BZ010- | Bush, Intake Valve Guide | |
| 2303 | 11123-BZ010- | Bush, Exhaust Valve Guide | |
| 2303 | 11201-BZ091- | Cover Sub-assy, Cylinder Head | |
| 2303 | 11210-BZ090- | Cover Sub-assy, Cylinder Head | |
| 2303 | 11213-BZ080- | Gasket, Cylinder Head Cover | |
| 2303 | 11213-BZ150- | Gasket, Cylinder Head Cover | |
| 2303 | 12180-BZ060- | Cap Sub-assy, Oil Filler | |
| 2303 | 12281-B1010- | Hanger, Engine, No.1 | |
| 2303 | 12281-BZ020- | Hanger, Engine, No.1 | |
| 2303 | 12282-B1050- | Hanger, Engine, No.2 | |
| 2303 | 12282-BZ050- | Hanger, Engine, No.2 | |
| 2303 | 15330-BZ080- | Valve Assy, Camshaft Timing Oil Control | |
| 2303 | 15678-21010- | Filter, Oil Control Valve | |
| 2303 | 19311-BZ031- | Sensor, Cam Position | |
| 2303 | 19311-BZ070- | Sensor, Cam Position | |
| 2303 | 90041-09249- | Bolt (for Cylinder Head Cover) | |
| 2303 | 90041-09274- | Bolt(for Cylinder Head Set) | |
| 2303 | 90041-09275- | Bolt (for Cylinder Head Cover) | |
| 2303 | 90042-01637- | Washer, Plate(for Cylinder Head Set) | |
| 2303 | 90043-41092- | Plug, W/head Straight Screw, No.1 | |
| 2303 | 90044-30204- | Gasket(for Cylinder Head) | |
| 2303 | 9004A-11304- | Bolt(for Head To Camshaft Bearing Cap) | |
| 2303 | 9004A-25037- | Pin, Ring W/head | |
| 2303 | 9004A-30059- | O Ring, Cam Position Sensor | |
| 2303 | 9004A-30062- | O Ring, Cam Position Sensor | |
| 2303 | 9004A-34018- | Plug, W/head Taper Screw, No.1 | |
| 2303 | 90068-14041- | Ring, O(for Cam Timing Oil Control Valve) | |
| 2303 | 90201-10344- | Washer, Plate(for Cylinder Head Set) | |
| 2303 | 90253-11005- | Pin, Ring W/head | |
| 2303 | 90341-22008- | Plug, W/head Straight Screw, No.1 | |
| 2303 | 90430-14009- | Gasket(for Cylinder Head Screw Plug) | |
| 2303 | 90430-37140- | Gasket(for Oil Filler Cap) | |
| 2303 | 90910-02186- | Bolt(for Cylinder Head Set) | |
