Head Gasket（0.1mm/0.15mm）
2A004160(code)
Conformity Engine List
| MAX-R21 | O.S. SPEED R2104 |
| O.S.SPEED R21 SHIMO EDITION 2 | O.S. SPEED B2103 Type S |
| O.S. SPEED B2103 Type R | O.S. SPEED B2104 |
| O.S. SPEED R21GT | O.S.SPEED B21 ONGARO EDITION |
