PRODUCT DETAILS
SERVICE / MAINTENANCE KIT
FOR MERCURY / MARINER OUTBOARD
4-Stroke – 4HP, 5HP, 6HP Models
Everything you need for routine maintenance of your Mercury or Mariner 4-stroke outboard engine.
Kit Contents:
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1 x NGK Spark Plug
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1 x Impeller Kit
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1 x Fuel Filter
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2 x Gearbox Drain/Fill Screw Fibre Washers
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1 x Trim Tab Anode
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1 x Thermostat & Gasket
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1 x Propeller Split Pin
Fits:
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Mercury 4HP 4-Stroke
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Mercury 5HP 4-Stroke
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Mercury 6HP 4-Stroke
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Mariner 4HP 4-Stroke
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Mariner 5HP 4-Stroke
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Mariner 6HP 4-Stroke
About SSI Marine Kits:
SSI MARINE KITS are assembled by our team using knowledge from hands-on workshop experience and feedback from customers over the years. We focus on delivering well-balanced, high-quality kits using a mix of:
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Genuine OEM Parts
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Premium Aftermarket Parts
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Quality Marine Oils (Rock Oil, Motul, Quicksilver, Suzuki, Yamaha)
Each kit is tailored to specific models. The photo represents the actual contents of this kit – please check carefully and ask us if you have any questions.
Why Choose SSI Marine?
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Workshop-tested aftermarket & OEM parts
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Fast dispatch from our UK warehouse
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Tracked 24-hour UK delivery
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Expert technical support available
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UK stock – same-day dispatch before 1 PM (Mon–Fri)
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Collection available from our Leigh (Manchester) unit
Buy with Confidence:
It is the buyer's responsibility to confirm compatibility with your outboard engine model and serial number before purchasing. If in doubt, contact our team — we're happy to help!
SHIPPING & DELIVERY
Delivery:
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.
Returns:
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:
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.








