Carburettor Service / Repair Kit for Mercury & Mariner Outboards

SSI Marine carburettor service and repair kit for selected Mercury and Mariner 25 HP and 30 HP 2-stroke outboard engines.

Designed for the 2-cylinder / 430cc, single-carburettor Mercury/Mariner engine family using carburettor repair kit:

853780A1

This kit has been put together by SSI Marine using our workshop experience and knowledge of outboard servicing and repair.

Fits Selected Mercury & Mariner Outboards

25 HP

Mercury / Mariner
2 Stroke
2 Cylinder / 430cc
Single carburettor
Selected International models
Serial range 0N018456 – 0N055504
Later 2-stroke models 0N055505 & Up

30 HP

Mercury / Mariner
2 Stroke
2 Cylinder / 430cc
Single carburettor
Selected International models
Serial range 0N001875 – 0N055504
Later 2-stroke models 0N055505 & Up

Mercury's parts information identifies 853780A1 as the carburettor repair kit for these 25/30 HP 2-cylinder applications.

IMPORTANT

This kit will NOT fit every Mercury or Mariner 25 HP / 30 HP outboard.

Please check your engine serial number before purchasing.

Replaces Mercury / Mariner Part Number

853780A1

853780A1
853780A 1
853780

OEM Mercury parts catalogues identify 853780A1 specifically as the carburettor repair kit for this engine family.

OEM part numbers are used for identification and reference purposes only.

Kit Contents

Please check the product pictures carefully.

The picture shows the parts you will receive in this SSI Marine kit.

SSI Marine service and repair kits are assembled by us based on:

Our knowledge of outboard parts
Workshop and servicing experience
Common service requirements
Customer needs and requests developed over many years

Individual components may be sourced from different quality marine suppliers.

The kit may contain a combination of quality aftermarket and genuine components, depending on the particular kit.

Product Features

SSI Marine carburettor repair kit
Carb service kit
Carburettor rebuild kit
For selected Mercury outboards
For selected Mariner outboards
25 HP
30 HP
2 Stroke
2 Cylinder
430cc
Single carburettor applications
For corresponding 0N... serial-number engines
Replaces 853780A1
Quality marine components
Ideal for carburettor servicing and rebuilding
UK stock

IMPORTANT – Check Your Serial Number

Please do not order by horsepower alone.

Mercury and Mariner produced several different 25 HP and 30 HP engine families, and they do not all use the same carburettor or repair kit.

For this kit, check that your engine corresponds with the 853780A1 carburettor application and appropriate 0N serial range.

For example:

25 HP → 0N018456 onwards within the corresponding application

30 HP → 0N001875 onwards within the corresponding application

The OEM application also lists 25 Jet 2-cylinder 2-stroke from 0N088578 & Up, although I would leave the Jet model out of your main title to keep the listing focused.

Important – Please Check Compatibility

Before purchasing, please check:

Engine is Mercury or Mariner
25 HP or 30 HP
2 Stroke
2 Cylinder / 430cc
Single carburettor configuration
Engine serial number
Existing carburettor
Original repair kit reference

For the safest identification, confirm that your engine requires:

853780A1

If the parts look the same as yours, this does not always mean they are the correct ones for your outboard.

With so many outboard models, generations and production years, please double-check compatibility before purchasing.

If you are unsure, send SSI Marine your engine horsepower and complete serial number and our technical team will be happy to check the application.

Why Buy From SSI Marine?

SSI Marine workshop-developed service kits
Quality marine components
Workshop-tested products
More than 10 years supplying and working with outboard engines
UK stock
Same working day dispatch before 1 PM Monday–Friday
Royal Mail Tracked 24
Technical support from experienced outboard specialists
Collection available from Leigh, Greater Manchester
Workshop open Monday–Friday, 9 AM–5 PM

Mercury Mariner Outboard 25 HP 30 HP 2 Stroke Carburettor Repair Kit 853780A1