8M2000433 Mercury MerCruiser MerCruiser Riser Gasket | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Turbulator Plate Assembly with Exhaust Gaskets - Part Number: 8M2000433

A genuine Quicksilver turbulator plate and exhaust gasket assembly used between the exhaust manifold and riser / elbow on MerCruiser 8.1L and 8.2L big-block petrol engines. This assembly includes gaskets bonded to either side of the turbulator plate and is used on non-EC MerCruiser sterndrive and inboard applications where specified.

⚙️ Key Features

• Genuine Quicksilver OEM turbulator plate assembly

• Correct Mercury part number 8M2000433

• Includes exhaust gaskets bonded to the plate

• Fits between exhaust manifold and riser / elbow

• Used on MerCruiser 8.1L and 8.2L non-EC big-block engines where specified

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M2000433 current OEM turbulator plate / gasket assembly reference

OEM / Related Numbers:

• 8M2000433

• Mercury 8M2000433

• Quicksilver 8M2000433

• 496 exhaust riser gasket with turbulator

• 8.1L turbulator gasket assembly

• 8.2L turbulator gasket assembly

• Exhaust manifold to riser turbulator plate

• Big-block V8 riser gasket assembly

Aftermarket / Verified Equivalents:

• Aftermarket 8.1L / 8.2L MerCruiser riser gasket and turbulator equivalents exist where matched directly to 8M2000433

• Final match should be made by exhaust manifold, riser style and serial-numbered parts diagram

🚤 Compatibility

Commonly used on:

• MerCruiser 8.1L and 8.2L non-EC sterndrive engines

• MerCruiser 8.1L and 8.2L non-EC inboard engines

• MerCruiser 496 MAG and 496 MAG HO exhaust manifold to riser assemblies

• Big-block MerCruiser exhaust riser service where 8M2000433 is specified

Typically suits:

• Engine models:

• MerCruiser 496 MAG Bravo 8.1L applications where turbulator plate 8M2000433 is specified

• MerCruiser 496 MAG HO Bravo 8.1L applications where turbulator plate 8M2000433 is specified

• MerCruiser 8.1L Horizon inboard applications where 8M2000433 is specified

• MerCruiser 8.1L Horizon MIE applications where 8M2000433 is specified

• MerCruiser 8.1L S Horizon MIE applications where 8M2000433 is specified

• MerCruiser 8.2L MAG applications where 8M2000433 is specified

• MerCruiser 8.2L MAG HO applications where 8M2000433 is specified

• MerCruiser 8.2L Horizon applications where 8M2000433 is specified

• MerCruiser 496 / 8.1L big-block V8 exhaust riser and manifold assemblies using the bonded turbulator plate style

• MerCruiser non-EC 8.1L / 8.2L engines using the serial-numbered exhaust manifold and elbow diagram that specifies 8M2000433

• Engine Type: MerCruiser GM big-block V8 petrol engine

• Engine Range: 8.1L / 496 CID and 8.2L where specified

• System Type: Exhaust manifold to riser / elbow turbulator gasket assembly

• Application Note: Intended for non-EC engine applications where the diagram specifies this bonded turbulator plate assembly

🔌 Function

The turbulator plate and gaskets seal the joint between the exhaust manifold and riser while helping control exhaust and cooling-water flow through the riser assembly.

Common signs of failure:

• Water leakage at riser-to-manifold joint

• Exhaust leak or ticking noise

• Rust staining around riser gasket face

• Internal gasket breakdown during exhaust service

• Water intrusion risk from failed riser gasket joint

• Replacement required whenever the riser is removed

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging