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M3.5B2 (3.5hp) 2-Stroke for Mercury Mariner Complete Outboard Service Kit

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Free Shipping in UK on Orders Over £150. Exclusions may apply.


M3.5B2 (3.5hp) 2-Stroke for Mercury Mariner Complete Outboard Service Kit

M3.5B2 (3.5hp) 2-Stroke for Mercury Mariner Complete Outboard Service Kit


Complete Outboard Service Kit M3.5B2 (3.5hp) 2-Stroke for Mercury Mariner made by Tohatsu

A high-quality service kit containing the following parts for a recommended 100 hour or annual service:

  • 1x NGK BPR6HS Spark Plug
  • 1x 369-65021-1 Impeller
  • 1x 3F0-65018-0 Water Pump Gasket
  • 1x 3F0-65029-0 Water Pump Gasket
  • 1x 369-65022-0 Impeller Key
  • 2x 332-60006-0 Gearbox Drain/Fill Screw Fibre Washer
  • 1x 0.350 Motul Gear Lube 
  • 1x Rock Oil Universal Marine Grease 500gr

Additional parts you may require for your engine can be added to the kit, just let me know what you require, (this may extend dispatch time if additional parts required are not in stock).

Maintenance and accessories
Our aftermarket parts are either produced in the European Union or imported in Europe from a major distributor. Our parts not only meet the required standards for marine engines but also comply with European laws and regulation of quality.

A refund of a returned item less original shipping costs will be issued if is within 14 days after purchase.

The item(s) being returned must be unopened, uninstalled and in a resalable condition.

Please use a suitable shipping carton to return item(s). Do not use manufacture packaging to ship.

If the item is damaged or faulty we will more than happy to replace it or issue you with a full refund if necessary.



We offer free shipping on all orders over £150 (excluded outboard engines, trailers)

Standard Shipping - £ 8.50

Orders are typically shipped within 1 business day of receipt of payment. We ship via Royal Mail Tracked 24 delivery service. Delivery times vary depending on the delivery destination.

For engines delivery cost please ask for a quote.

It is the buyer's responsibility to ensure that the correct shipping address is supplied.

All item(s) will be despatched to the registered address.

Tracking your order:

Once your order has been shipped, you will receive a tracking number via email. You can track your order online using the tracking number provided.


We accept returns of unused and undamaged items within 30 days of purchase.

To return an item please contact us for a return authorisation number. Return shipping costs are the responsibility of the customer.


Refunds will be issued for the purchase price of the item, less shipping costs. Refunds will be issued in the same form of payment as the initial purchase.

Customer Reviews

Based on 3 reviews
Colin Townsley (ctowns2014)

arrived on time.everything I needed was there.

Robin Pettigrew
Great service and quick delivery

Service was great and the delivery was fast

Gavin Ritchie
Brilliant Service.

Excellent communication, nothing is an issue. I had 1 question which was very quickly resolved...professionally. Will be using SSI Marine for more Marine parts. Well done Guys.


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