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Mercury Mariner 135-175hp Service Kit (OSSK23)

Manufactured by:

Outboard Spares

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This kit includes:
1 x 47-89984T4 Impeller (OSI8998)
1 x 27-85608 1 Waterpump Gasket (OSWG856)
1 x 27-858524 Waterpump Gasket (OSWG858)
1 x 78690002 Relief Valve Gasket 2pack (OSRVG786)
1 x 35-877565T1 Fuel Filter (OSFF8775)
6 x BU8H NGK Spark Plugs

This part suits the following engines: Mercury Mariner 135-175hp 2 Stroke serial # 4868998 to OG960499.


About The Brand

Outboard Spares brand of parts are tested in Australia's harsh marine environment with a focus on quality and durability. Outboard Spares parts are used by professional fishermen who depend on their parts to stay on the water and in business. So next time you service your engine choose what the professionals use, choose Outboard Spares.

Shipping Options

Australia - We offer two options of shipping; FREE standard shipping OR $5 EXPRESS shipping.

New Zealand - We offer one option of shipping; $10 standard shipping

Orders are dispatched same business day if ordered before 2pm AEST.  All orders are dispatched from Melbourne, Victoria.

Delivery Time

All orders are sent via Australia Post.  For delivery time estimates with Australia Post please use their delivery calculator here:

If you have any questions relating to shipping, please refer to our Shipping page or contact us at