The Genuine Tohatsu Cylinder Head Cover Bolt 910121-6630 is an OEM replacement fastener designed for selected Tohatsu 90HP 2-stroke outboard motors. Used to secure the cylinder head cover to the engine, this genuine bolt helps maintain correct clamping of the cover and gasket. Ideal for replacing missing, damaged or corroded bolts during cylinder head servicing, cooling system repairs and routine outboard maintenance.
Nuts, Bolts, Screws & Washers (Tohatsu)
Cylinder Head Cover Bolt – 910121-6630
Brand: Tohatsu
SKU: 910121-6630
$3.20
Key benefits
Key Benefits
- - Genuine Tohatsu OEM replacement fastener.
- - Confirmed application on the M90A 90HP 2-stroke outboard.
- - Secures the cylinder head cover assembly.
- - Helps maintain even clamping of the cover gasket.
- - Suitable for cylinder head cover servicing and repairs.
- - Replaces damaged, corroded or missing original bolts.
Compatible Tohatsu Outboard Motors
- 2-Stroke Models
- - Tohatsu M90A – 90HP
Cross-Reference & Superseded Part Numbers
- Genuine OEM Part Number
- - 910121-6630 – Tohatsu cylinder head cover bolt.
- - 9101216630M – Alternative ordering format.
Important Fitment Information
- - Fits selected Tohatsu M90A and M90A2 90HP 2-stroke outboards.
- - Quantity required per M90A cylinder head cover: 15 bolts.
- - Sold individually, not as a set of 15.
- - Confirm engine model and serial number before ordering.
- - Check thread pitch and bolt length against the original.
- - Use the manufacturer's recommended tightening sequence and torque.
- - Do not confuse this bolt with the cylinder head mounting bolts.
Signs the Bolt Needs Replacing
- - Damaged or stripped threads.
- - Corrosion or deterioration.
- - Rounded or damaged bolt head.
- - Bent or stretched fastener.
- - Missing cylinder head cover bolt.
- - Loose or insecure cylinder head cover.
Shipping
Ships Australia-wide