439075 Aftermarket Mercruiser/Bombardier Carburettor Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Johnson/Evinrude carburettor kit with float - Replacement Part Number: 439075

A complete carburettor service kit with float for selected Johnson and Evinrude Big Twin and 40HP two-stroke outboards. Despite the supplied MerCruiser wording, 439075 is an OMC/BRP outboard reference. It supersedes earlier 382052, 382053 and 385356 kits.

⚙️ Key Features

• Complete service kit with float

• Designed for selected Big Twin and 40HP OMC carburettors

• Cross-references to Sierra, Mallory, GLM and Recmar kits

• Services one carburettor

• Not a MerCruiser sterndrive kit

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 439075 → Supersedes 382052, 382053 and 385356

• 777727 is a later/related BRP service number

OEM / Related Numbers:

• 0439075

• 439075

• 382052

• 382053

• 385356

• 777727

Aftermarket / Verified Equivalents:

• Sierra: 18-7024

• Mallory: 9-37104

• GLM: 40530

• Recmar: REC439075

Included Components:

• Float assembly - Component service reference: supplied in Kit 439075

• Float hinge pin - Component service reference: supplied in Kit 439075

• Needle-and-seat assembly - Component service reference: supplied in Kit 439075

• Float-bowl gasket - Component service reference: supplied in Kit 439075

• Carburettor body and mounting gaskets - Component service reference: supplied in Kit 439075

• O-rings, seals, washers and core plugs - Component service reference: supplied in Kit 439075

🚤 Compatibility

Commonly used on:

• Johnson and Evinrude Big Twin and 40HP carburetted two-stroke outboards

Typically suits:

• Engine models:

• Selected 22HP-40HP Big Twin families

• 40HP applications approximately 1964-1970

• 40HP applications approximately 1972-1978

• HP Range: Approximately 22HP - 40HP

• Engine Type: Carburetted two-stroke outboard

• Year Range: Approximately 1950s - 1978; direct 40HP coverage primarily 1964-1978

• Quantity Required: One kit per carburettor

🔌 Function

The kit renews the float and fuel-inlet components plus the gaskets and seals needed to restore correct bowl level and eliminate air or fuel leakage.

Common signs of failure:

• Hard starting or excessive choke/enrichment required

• Rough idle, hunting or repeated low-speed stalling

• Hesitation, flat spots or intake backfire during acceleration

• Fuel leakage, flooding or an incorrect float-bowl level

• Lean surging, reduced power or fuel starvation under load

• Rich running, smoke, spark-plug fouling or excessive fuel consumption

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging