1347-9142A2 1347-8460A3 Mercruiser Carburettor Assy | Genuine Used Part

🔧 Product Description

Genuine MerCruiser Rochester Quadrajet Four-Barrel Carburettor - Part Number: 1347-9142A2

A genuine MerCruiser Rochester Quadrajet marine four-barrel carburettor for selected 3.7L / 224 CID inline-four engines.

The assembly uses an electric choke and supplies the higher-output 180HP and 190HP MerCruiser 3.7L engine family. The secondary throttle bores provide additional airflow and fuel at higher engine loads.

⚙️ Key Features

• Genuine MerCruiser Rochester Quadrajet carburettor
• Current service reference 1347-9142A2
• Cross-references with earlier assembly 1347-8460A3
• Four-barrel marine carburettor with electric choke
• Used on high-output MerCruiser 3.7L inline-four engines

🚤 Compatibility

Commonly used on

• MerCruiser 3.7L / 224 CID high-output inline-four petrol engines

Typically suits

• Engine models:
• MerCruiser 190 3.7L - 1985-1986, serial 6916779 to 0B436390
• MerCruiser 180 3.7L - 1987, serial 0B436391 to 0B775248
• MerCruiser 3.7LX - 1988-1989, serial 0B775249 and above
• MerCruiser 488 and 488R high-output 3.7L engines
• MerCruiser 180HP and 190HP 224 CID engines using Quadrajet assemblies 1347-8460A3 or 1347-9142A2
• HP Range: 180HP - 190HP
• Engine Type: MerCruiser 3.7L / 224 CID inline-four petrol sterndrive
• Year Range: Approximately 1985-1989

🔌 Function

The carburettor meters fuel and air through primary and secondary throttle bores. The primaries support starting and normal cruising, while the secondaries open under higher load to supply additional airflow and fuel.

⚠️ Common Signs of Failure

• Hard starting or electric choke does not operate correctly
• Engine hesitates when the secondary bores open
• Fuel leaks from the bowl, inlet or accelerator-pump area
• Poor idle caused by blocked passages or vacuum leaks
• Excessive fuel consumption, black smoke or reduced power

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 1347-9142A2 → Replaces / cross-references with 1347-8460A3
• 1347-8460A3 earlier Rochester Quadrajet assembly

OEM / Related Numbers

• 1347-9142A2
• 9142A2
• 1347-8460A3
• 8460A3
• Rochester: 17081229
• 41634A2 related carburettor wedge assembly

Aftermarket / Verified Equivalents

• Sierra: 18-7619-1 remanufactured carburettor
• Marine Carburetors: remanufactured Rochester Quadrajet replacement
• Recmar: Rochester Quadrajet service and overhaul kit

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated