Mercury Mariner Outboard HP 70 HP 75 HP 80 HP 90 2 Stroke 3 Cylinder 3 Carb Full Service Maintenance Kit

Carry out a complete service on your Mercury or Mariner outboard with this comprehensive Full Service Maintenance Kit. Designed for 2-stroke 3-cylinder 3-carburettor models, this kit contains the essential service parts and lubricants required to keep your engine performing reliably while maintaining efficient cooling and corrosion protection.

Fits Mercury & Mariner Outboards

2-Stroke – 3 Cylinder – 3 Carburettor Models

HP 70
HP 75
HP 80
HP 90

Please check your engine serial number before ordering, as some models may use different service parts.

Kit Includes

Water Pump Impeller Repair Kit
Thermostat Kit
Complete Anode Kit
Fuel Filter
3 × Champion L78V Spark Plugs (Replacement for Champion BUHW-2)
IMPORTANT: This listing is for engines fitted with Champion L78V (flat-seat) spark plugs. Please check your existing spark plugs before ordering, as these models were supplied with two different spark plug types. If your engine uses NGK BP8H-N-10 spark plugs, please see our separate service kit listing.
2 × Gearcase Drain Plug Gaskets
1 Litre SAE 80W-90 Marine Gear Oil
Gear Oil Filling Pump
500g Marine Grease

Features

Complete full service maintenance kit
Premium marine-grade aftermarket parts
Water pump impeller repair kit included
Complete thermostat kit included
Complete anode kit for corrosion protection
Champion L78V spark plugs included
Fuel filter included
Gear oil and filling pump included
Manufactured to OEM specifications
500g marine grease included
Suitable for routine servicing and preventative maintenance
Fully compatible replacement components

Why Service Your Outboard?

Regular servicing helps to:

Maintain maximum engine performance
Protect the cooling system
Improve fuel efficiency
Reduce engine wear
Prevent corrosion
Extend the life of your outboard

Replacing the impeller, thermostat, anodes, fuel filter and spark plugs at the recommended service intervals helps ensure reliable performance and reduces the risk of expensive repairs.

Why Buy From SSI Marine?

Workshop-tested aftermarket & OEM-spec parts
Fast UK dispatch (same-day before 1 PM Mon–Fri)
Royal Mail Tracked 24 delivery
UK stock – collection available from Leigh, Manchester
Technical support available

Buyer Responsibility

Please confirm compatibility with your engine model and serial number before purchase.

If you are unsure, contact us with your engine serial number and we'll be happy to identify the correct service kit.