278031484 Mercury MerCruiser Gasket Set Intake | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Intake Gasket Set - Part Number: 27-803184

A genuine Quicksilver intake gasket set for MerCruiser GM 7.4L MPI Gen VI 454 CID V8 engines. This gasket set seals the intake manifold to the cylinder heads and is used during intake manifold removal, resealing or top-end service.

⚙️ Key Features

• Genuine Quicksilver OEM intake gasket set

• Correct Mercury part number 27-803184

• Intake manifold gasket set for MerCruiser 7.4L MPI Gen VI GM 454 V8 engines

• Helps seal intake ports and coolant / air passages as designed by the manifold layout

• Important replacement set during intake manifold service

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 27-803184 → Supersedes 27-802567

• 27-802567 earlier OEM intake gasket set reference

OEM / Related Numbers:

• 27-803184

• 803184

• 27803184

• 278031484

• 27-802567

• 802567

Aftermarket / Verified Equivalents:

• Recmar: REC27-803184

🚤 Compatibility

Commonly used on:

• MerCruiser 7.4L MPI Gen VI GM 454 CID V8 intake manifold gasket applications

• MerCruiser sterndrive and inboard big block V8 top-end service where 27-803184 is specified

Typically suits:

• Engine models:

• MerCruiser 7.4L MPI MIE L29 Gen VI GM 454 V8 - 1998-2000, serial 0L002006 to 0L674613

• MerCruiser 7.4L Bravo MPI Gen VI GM 454 V8 - 1998-2000, serial 0L010003 to 0M024330

• Engine Type: MerCruiser GM big block V8 petrol inboard and sterndrive

• CID / Litre Range: 454 CID / 7.4L

• System Type: Intake manifold gasket set

🔌 Function

The intake gasket set seals the intake manifold to the cylinder heads, helping prevent intake air leaks, fuel-air mixture imbalance and coolant or vacuum leakage at the manifold joint.

Common signs of failure:

• Vacuum leak or rough idle

• Lean running condition

• Coolant seepage near intake manifold

• Poor running after intake removal

• Gasket replacement required during manifold service

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging