823426A1 Aftermarket Mercruiser Carburettor Kit 5.0L, 5.7L, 7.4L | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Rochester Quadrajet Four-Barrel Carburettor Kit - Replaces Part Number: 823426A1

New aftermarket overhaul kit replacing MerCruiser 823426A1 for Rochester Quadrajet four-barrel marine carburettors. The same service family cross-references OMC and Volvo Penta numbers used on GM V8 marine installations.

⚙️ Key Features

• Direct replacement for MerCruiser 823426A1

• Rochester Quadrajet four-barrel service family

• Supports selected 5.0L, 5.7L and 7.4L GM V8 packages

• Includes gaskets, seals, jet needles, clips and O-rings

• One kit services one carburettor

🧰 Kit Contents

• 1 × Quadrajet gasket and seal package - supplied under kit P/N 823426A1

• 1 × Needle-and-seat service assembly - supplied under kit P/N 823426A1

• 1 × Accelerator-pump service group - supplied under kit P/N 823426A1

• 1 × Metering-rod/jet-needle and retaining-clip group - supplied under kit P/N 823426A1

• 1 × Carburettor mounting gasket - supplied under kit P/N 823426A1

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 823426A1 → Supersedes/cross-references MerCruiser 1397-9723

• 1397-9723 → Related to 1397-8535 / 1397-7544 / 1397-7539 / 1397-7450

OEM / Related Numbers:

• OMC 983864

• OMC 383918

• Volvo Penta 834985

• 1397-7539

• 1397-7450

• 1397-7544

• 1397-8535

• 1397-9723

Aftermarket / Verified Equivalents:

• Sierra: 18-7072

• GLM: 76150

• Recmar: REC823426A1

🚤 Compatibility

Commonly used on:

• GM V8 marine engines with Rochester Quadrajet four-barrel carburettors

Typically suits:

• Engine models:

• MerCruiser 5.0L/305 V8

• MerCruiser 5.7L/350 V8

• MerCruiser 7.4L/454 V8

• OMC applications specifying 983864 or 383918

• Volvo Penta applications specifying 834985

• HP Range: Approximately 200HP - 330HP

• Engine Type: Carburetted GM V8 marine engine

• Year Range: Model- and carburettor-number dependent

• Serial / Model Identification: Confirm the Rochester carburettor number and OEM kit reference.

🔌 Function

This service kit renews the carburettor components that control float level, fuel shut-off, metering and sealing. Correct overhaul helps restore reliable starting, stable idle, clean acceleration and balanced fuel delivery.

Common signs of failure:

• Hard starting or excessive choke required

• Rough, unstable or hanging idle

• Fuel leakage, flooding or strong fuel smell

• Hesitation, bogging or stalling under acceleration

• Poor power, uneven cylinder fuelling or excessive fuel consumption

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging