MP425036 Aftermarket Mercruiser 4.3L Vortec 4-Barrel Exhaust Manifold | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket GM Marine 4.3L Vortec 4-Barrel Intake Manifold - Part Number: MP425036

A cast-iron four-barrel intake manifold for GM 262 CID / 4.3L Vortec marine engines. This is an intake manifold, not an exhaust manifold. It uses the eight-bolt Vortec cylinder-head pattern and accepts a four-barrel carburettor.

⚙️ Key Features

• Corrected identification: four-barrel intake manifold

• GM 4.3L / 262 CID Vortec eight-bolt head pattern

• Cast-iron marine intake construction

• Can replace the unavailable two-barrel manifold when used with the correct carburettor adapter

• Matches MerCruiser, Volvo Penta and GM marine references listed below

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• MP425036 → Cross-references to GM/Volvo/MerCruiser four-barrel intake numbers

OEM / Related Numbers:

• MP425036

• GM 3855806

• MerCruiser 824324T02

• MerCruiser 824324T1

• MerCruiser 824330T1

• GM 12550460

Aftermarket / Verified Equivalents:

• Marine Power / Recmar: MP425036

🚤 Compatibility

Commonly used on:

• GM 4.3L Vortec carburetted marine intake systems

Typically suits:

• Engine models:

• GM 262 CID / 4.3L Vortec marine engines with the eight-bolt intake pattern

• MerCruiser 4.3L Vortec applications using 824324T02, 824324T1 or 824330T1

• Volvo Penta / OMC 4.3L Vortec applications using 3855806

• Engine Displacement: 262 CID / 4.3L

• Carburettor Pattern: four-barrel

• Cylinder-Head Attachment: eight-bolt Vortec pattern

• Part Type: intake manifold

🔌 Function

The intake manifold distributes the carburetted fuel-and-air mixture from the four-barrel carburettor to the six intake ports.

Common signs of failure:

• Vacuum leak at the intake gaskets

• Internal corrosion or coolant leakage

• Warped carburettor or cylinder-head flange

• Cracked casting

• Poor running caused by an incorrect two-barrel/four-barrel adapter arrangement

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging