Honda OEM Cylinder Head Gasket – Grom & Monkey

Maintain a factory-perfect seal on your top end with this genuine Honda OEM cylinder head gasket. Engineered to exact factory tolerances, it ensures proper compression and prevents coolant or oil leakage between the cylinder head and block — essential for any top-end rebuild or preventive maintenance.

Fitment

• 2014–2020 Honda Grom (MSX125 – OG & SF variants)
• 2019–2021 Honda Monkey (Z125MA)

Product Details

• Part Number: 12251-KYZ-901
• Barcode: 48112881
• Weight: 0.1 lbs
• Condition: New – Genuine OEM Honda Part

When to Replace

Replace the cylinder head gasket any time you remove the cylinder head — during valve adjustments, top-end rebuilds, or when diagnosing compression loss or oil/coolant mixing. Using a genuine OEM gasket ensures the correct thickness and material for a reliable re-seal.