JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

Same day dispatch on 96% of orders - order by 3pm

YOUR TRADE-ONLY DISTRIBUTOR

Call 02392 637711 or email sales@marathonleisure.co.uk

Home
Shop
About
Contact
Login

Categories

Water Systems & Pumps

Pumps & accessories
Automatic bilge pumps
Manual bilge pumps
Bilge pump switch
Livewell pumps
Fresh water pump
Grey waste pumps (sink / shower)
Black waste pumps (toilet)
Filters / Strainers
Plumbing accessories
Hose
Hose clips
Deck filler / plugs / bungs
Spares
Diaphragm Pump
Seawater Pumps
Calorifiers (water heaters)
12v water heater
230v water heaters
Water tank & accessories
Water level gauges
Tank sender
Water treatment & descaler
Water Tanks
Taps / Showers
Taps
Sinks
Deck showers / Showers
Toilets
Manual Toilets
Electric Toilets
Toilet accessories
Cabin & Galley

Refrigeration
Front Loading Fridge
Drawer fridge
Freezer / Ice making
Cooling units
Spares & Accessories
Clocks and Barometers
Instruments
Glass Coverings
Cooking
Electric grills / BBQ
Cooktops
Cooking utensils
Melamine dishes & cutlery
Gas Cookers
Flooring
Non-slip flooring
Flooring adhesive
Tape
Flooring cleaner
Ventilation
Blower
Vents
Ventilation hose
Gas Detector
Air Conditioning
Accessories and Spares
Electrical

Batteries
Lithium Battery
AGM Battery
GEL Battery
Battery Isolator
Battery Monitor
Battery Box
Battery Cable
Battery Terminals & Covers
Add a battery kit
Battery maintenance
Battery Container
Charging / Converting
Battery Charger
Combi (Inverter/Charger Combination)
Inverter
DC - DC Converter
Solar Charging
Automatic Charging Relay
Alternators & Regulators
Split Charging
Monitors & Switches
Digital switching
Masterbus network
Monitor
Remotes
Battery switches
Remote battery switch
Fuses / BusBars
Fuse blocks / holder
Fuses
Bus Bars & Studs
Panels, breakers & Switches
DC Panels
AC Panels
Switches
Circuit breaker panel
Circuit breakers
12v sockets / chargers
Installation Tools & accessories
Crimp / Tools
Heat shrink tube & connectors
Cable clams / glands
Bonding & Grounding
Junction boxes
Waterproof plugs & sockets
Electrical Testers (Multimeters etc)
Electrical cable
Windscreen wipers
Motors
Wiper kits
Arms
Blades
Wiper switch
Lighting
Navigation lights
Spots & Floodlights
Bulbs
Deck light
Searchlight
Torches
Mooring / pole lights
Courtesy lights
Ceiling lights
Strip lights
Chart light
Horns
Compact horn
Trumpet horn
Shore power
Cordsets
Inlets & Outlets
Connectors / sockets
Adaptors
Accessories
Galvanic isolator
Isolation Transformers
Electronics

Fishfinders / Plotters
Fishfinder & Fishfinder plotter
Plotters
Transducers
Mega Live / Mega 360
Cables & Accessories
Chart
Chirp radar
Autopilot
Software
GPS
VHF Radios
Fixed base VHF
Handheld VHF
Walkie talkie
Antennas
VHF Antenna
TV Antenna
AM/FM Antenna
Mounts
Coax cables & connectors
Extensions
Marine Audio
Stereos
Speakers
Subwoofer
Amplifiers
Remote control
Source Units
Accessories
Gauges
Analogue
Digital
Fuel sender
Depth Gauge
Accessories
Navigation

Compasses
Dash Mount
Bulkhead Mount
Bracket Mount
Flush / Surface mount
Binnacle Mount
Hand bearing
Kayaking
Wet notes
Sail/Power Compasses
Compass Spares and Accessories
Plotting
Digital charts
Chart plotter table instruments
Binoculars
Safety

Life jackets and buoyancy aids
Spinlock Protect range
Gas lifejackets
Foam life jackets
Buoyancy aids
Life jacket rearm kits & accessories
Dog life jackets
PLB
Inflatable Lifejackets
Man overboard
Horseshoe Buoys
Life ring
Man overboard recovery
Throw line
Engine cut-off kill switch
First aid / Sun crème
First aid kit
Sea sickness band
Waterproof Sun cream & skin moisturiser
Emergency equipment
Wooden plugs
Bailers
Drogues
Protective Aid
Ladders
Firefighting
Fire extinguishers
Fire blankets
Detectors
Holders/Cases
Fire Ports
Life raft accessories
Life raft bracket
Telescopic paddle
Signalling
Radar reflectors
Horns / whistle
Black ball / cone signals
Reflective tape
Mirror
Dye Marking
Rope control
Lanyards, harnesses and lifelines
Lanyards
Safety harness
Lifeline
Ropes, Rigging & Hardware

Deck fittings & Hardware
Hatches, inspection cover & portlights
Actuators & Hatch Lifts
Lifting ring
Handrails
Deck fillers
Stanchions / flag poles
Cleats, Fairleads & chocks
Bolts
Rigging screws
Hinges
Latches
Door stop
Swivels
Shackles
A frames
Padlocks
Hooks
Rowlock
Screws
Leaning Post's
Rope / Sails / Mast
Rope
Fids
Sail making palm
Sail knife
Connectors / hooks / handles
Splicing clamps & rope tidy
Sail needles
Snap fasteners / turn buttons
Rings & bullseye
Mast centipede / sail protector
Mast step & Bosun chair
Mast & Deck harnesses
Thimbles
Sail Covers
Rope control
Spinlock Sense
Spinlock Control Hardware
Deck hardware
Blocks
Cleats
Sail management
Deck organiser
Clutches
Jammers
Dinghy
Dinghy accessories
Shock cord & ties
Tiller & rudder control
Inflatable boats & water sports

Tenders / inflatables
Roll up inflatable boats
Aluminium hull RIBs
SUP
Spares, covers & accessories
Liferafts
Rigid Tenders
Fishing accessories
Fishing rods & nets
Downriggers
Fishing rod holders
Accessories
Ratchet straps
Launch wheels & trolley
Davit kit
Seats, pedestals & tables
Trailer rollers & accessories
Air pumps
Paddles / oars
SKI mirrors & tow ring
Flags
Engines & Propulsion

Engines
Engine control cables
Fuel shut off cable
Engine control levers + tiller control
Filters
Fuel lines and fittings
Lifting harness / covers
Outboard bracket
Outboard trolley
Flushers
Fuel hose
Oil pump
Silencers
Anti-Siphon
Separator
Fuel Vents
Fuel Tanks and Petrol Cans
Level Sensor
Steering
Steering cables
Mechanical Helms
Accessories for mechanical steering
Steering wheels
Hydraulic Steering
Helms
Cylinders
Hydraulic Kits
Hoses, Oil & Accessories
Trim tabs
Smart tabs
Hydroplane
Trolling motors
Transom mount trolling motor
Bow mount trolling motor
Accessories / spares
Inboard Motor
Outboard Motor
Freshwater Motor
Anchoring, Boarding & Mooring

Windlass / Winch
Winch handles / pockets
Winch switch
Fenders & buoys
Fenders
Fender covers
Fender cleaner
Fender ties, quick connectors & valve adaptors
Fender baskets
Dock fender
Marker buoy
Pick-up buoy
Mooring
Dock line
Rubbing strake
Boat hooks
Mooring Snubber / compensators
Bollards
Floats
Wedges
Containers
Absorbing
Boarding
Boarding ladders
Bathing platform / steps
Chain
Mooring Chain / lines
Chain gripper / hooks
Chain markers
Chain links / swivels
Anchoring
Anchors
Anchor swivels
Anchor ring
Electric / Hydraulic shallow water anchoring
Maintenance & Consumables

Tools / Preparation
Wet & dry paper / abrasives
Sanding discs
PPE
Tools & Dust sheets
Masking tape
Brushes, rollers & trays
Buckets
Funnels
Lubricants / Greases / Engine
Outboard oil
Inboard oil
Jet ski / watercraft oil
Gear oil
Grease
Lubricants
Engine / fuel tank treatment
Filters
Anti-freeze
Transmission fluid
Fogging oil
Fuel additives
Paint, antifoul & varnishes
Antifouling paint
Primers / undercoats
Topcoats
Thinners & degreasers
Varnishes & wood oils
Outboard paint
Gloss
Paint stripper
White spirit & meths & parrafin
PVC
Flexithane Hypalon
Adhesives, sealants, fillers & epoxy
Epoxy
Glues
Silicone sealant & remover
Fillers / repair
Liquid gasket / electrical tape
Cleaner / Polishes / Wax
Bilge cleaner / oil absorbers
Fabric / canvas cleaner & waterproofing
Hull cleaner, waxes & polish
Cleaning brushes, buckets, sponges etc.
Boat cleaner
Metal cleaner / restorer / rust convert
Wood / teak cleaner & treatment
Deck cleaner
Toilet cleaner
Plastic / glass cleaner
Vinyl cleaner
Fibreglass cleaner
Degreaser
General cleaners
Moisture absorbers
Anodes
Shaft and rudder anodes
Propeller anode
Motor anode
Hanging anodes
Hull anodes
Backing pads & fixing bolts
Speciality Tapes
Self-amalgamating Marine Tape
Spinnaker & Sail Repair Tape
Marine Repair & Riggers Tape
Flame Retardant Quality PVC Tape
Hull stripe Coveline
Footwear, Clothing & luggage

Clothing
Sailing suits
Sailing Caps
Gloves
Fleeces / Hoody
Polo Shirts
Softshell Jackets
Crew jackets
Oxford cotton shirts
Gilets
Luggage
Dry bag
Key ring
Bags
Personal Equipment
Pouches
Footwear
Rubber boots
Leather boots
My Orders
Our Brands
Our Company
Our Stockists
Delivery, Shipping & Returns
FAQs
Site Map

×

Home
Engines & Propulsion
Steering
Hydraulic Steering
Seal kit for OC-350

main product photo

Seal kit for OC-350

SKU

SK-350

£174.88

RRP Ex. VAT

Marathon Leisure User

Demand for this item is high, if you need this item urgently please click the "Check Availability" button below for us to confirm availability

Marathon Leisure news and products straight to your inbox.

Call

0044 (0) 2392 637711

Email

sales@marathonleisure.co.uk

Contact

The Marathon trade sales office is open from 9am until 5.30pm Monday to Thursday, and 9am until 5pm on Fridays.

my account

My Account
My Orders

Choose us

Our Brands
Our Company
Our Stockists
Careers

Information

Delivery, Shipping & Returns
FAQs
Media Bank

Cookies & privacy
Terms & Conditions
Careers

Copyright © 2025 Marathon Leisure, Ltd. All rights reserved.

Continue View Basket Compare Products My Wishlist

Sign in Or Register

Invalid login or password.

Forgot Your Password?

Don't have an account?

If you would like an account with Marathon Leisure please contact us via email at sales@marathonleisure.co.uk or ring us on 0044 (0) 2392 637711 and we'll be happy to help.