Description

Mercury 854256 is a genuine OEM carburetor repair kit for select carbureted Mercury FourStroke outboards. Current Mercury catalog listings show 854256 in Mercury’s carburetor repair kit lineup, and OEM dealer sources identify it specifically as REPAIR KIT, Carburetor rather than a MerCruiser carb kit.

Key Features

• Genuine Mercury Marine OEM part number 854256.
• Cataloged as REPAIR KIT, Carburetor for Mercury outboard applications.
• Current OEM dealer data lists GTIN 745061433717.
• Current shipping specs show approximately 0.03 lb, 3.25 in x 3.75 in x 0.25 in packaged size.
• Current carburetor schematic references tie this kit to carburetor assemblies including 883314T03 and 830276A18.

Engine Compatibility

The strongest supportable fitment for 854256 is select Mercury 25 HP, 30 HP, and 40 HP carbureted FourStroke outboards. Current OEM dealer where-used references specifically show it on 25 FourStroke, 30 FourStroke, and 40 FourStroke carburetor applications, and another current catalog reference also groups it with Mercury 25–40 HP FourStroke carburetor service.

Serial Number Fitment Notice

Verify fitment by exact outboard serial number and carburetor diagram before ordering. Current OEM dealer references show 854256 for 25 (4-Stroke) serial ranges 9973100-0P016999, 0G590000-0G760299, 0G760300-0T408999, 0P017000-0P153499, 0P153500-0P388282, and 0T409000-1B344298; 30 (4-Stroke)0G760300-0T408999 and 0P017000-0P153499; and 40 (4-Stroke)0G760300-0T408999 and 0P017000-0P153499.

When This Part Needs Replacement

This kit is typically replaced when the carburetor is leaking, running poorly, or being serviced for worn internal carburetor seals and related service parts. That guidance is a practical service inference based on 854256 being sold and cataloged specifically as a carburetor repair kit for the affected outboard carburetor assemblies.

Installation Notes

Install 854256 only after confirming the exact Mercury outboard serial number and carburetor breakdown for the engine being serviced. Current schematic references show it in the carburetor service area with related float, valve, enrichener, plunger, bowl, and gasketed carburetor components, so matching the correct carburetor assembly first is the safest approach.

Alternate/Superseded Part Numbers

Current sources reviewed show 854256 as the active OEM reference for this carburetor repair kit.

Parts Desk Insight

This is a good example of why the SKU should lead the listing. Even if a typed description points toward MerCruiser, 854256 tracks to a Mercury outboard carburetor repair kit, and matching it by exact outboard serial range is the safer move because older carbureted FourStroke models can look similar while using different carb service parts.

Shipping: Ships same or next day for fast Canada wide shipping.