PRODUCT DETAILS
Cylinder Head & Base Gasket Set for Tohatsu 2.5HP–3.5HP 2-Stroke Outboards
High-quality cylinder head and base gasket set designed for Tohatsu 2-stroke outboards. Ideal for maintenance, rebuilds, or replacement of worn gaskets — providing a reliable seal to maintain compression and prevent leaks.
Fits the following Tohatsu 2-stroke outboards:
• 2.5HP
• 3.5HP
Replaces Tohatsu Part Numbers:
• 309-61012-1 (Cylinder Head Gasket)
• 309-01005-2 (Base Gasket)
Product Features:
• Includes both head gasket and powerhead base gasket
• Durable aftermarket marine-grade materials
• Easy installation — OEM-style fit and seal
• Prevents water and exhaust leaks
• Suitable for engine repairs and routine service
Please check compatibility before purchasing.
It is the buyer’s responsibility to ensure this part fits their engine.
If unsure, contact us — our SSI Marine team is happy to help!
Why Buy from SSI Marine?
• High-quality, affordable marine engine parts
• All items in UK stock — same-day dispatch (before 1 PM)
• Tracked 24-hour delivery
• Trusted marine supplier with expert support
Order now from SSI Marine — quality outboard parts with fast UK shipping!
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.
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