278052151 Mercury MerCruiser Gasket | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Sea Water Pump Gasket - Part Number: 27-8052151

A genuine Quicksilver sea water pump gasket for MerCruiser sterndrive, inboard and high-performance cooling systems. This gasket seals the sea water pump cover or pump body joint and is used during raw-water pump, impeller and cooling-system service.

⚙️ Key Features

• Genuine Quicksilver OEM gasket

• Correct Mercury part number 27-8052151

• Sea water pump gasket for MerCruiser raw-water cooling systems

• Also referenced as 27-805215 and 8052151

• Cross-referenced with GLM and Barr Marine gasket equivalents

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 27-8052151 current OEM service reference

• 27-805215 earlier related OEM sea water pump gasket reference

OEM / Related Numbers:

• 27-8052151

• 8052151

• 278052151

• 27-805215

• 805215

Aftermarket / Verified Equivalents:

• GLM: 32740

• Barr Marine: MC47-27-94915

🚤 Compatibility

Commonly used on:

• MerCruiser raw-water pump and sea water pump assemblies

• MerCruiser GM V6, small block V8, big block V8, Ski, Bravo, MIE and high-performance engines where 27-8052151 is specified

Typically suits:

• Engine models:

• MerCruiser 420 GM 454 V8 - 1987-1989, serial 0A398941 to 0B622418

• MerCruiser 425 GM 454 V8 - 1990-1993, serial 0A398941 to 0D937011

• MerCruiser 450 Gen V GM 454 V8 - 1995-1996, serial 0F347100 to 0F347277

• MerCruiser 465 GM 502 V8 - 1990-1994, serial 0C849992 to 0F213244

• MerCruiser 500 GM 502 V8 - 1994-1998, serial 0F213293 to 0L001772

• MerCruiser 500 Bulldog GM 540 V8 - 1990-2001, serial 0C577254 to 0M050281

• MerCruiser 525 SC GM 454 V8 - 1991-1997, serial 0D456000 to 0L415623

• MerCruiser 600 SC GM 502 V8 - 1991-1998, serial 0D456489 to 0L601186

• MerCruiser 800 SC GM 572 V8 - serial 0D763836 and up

• MerCruiser 900 SC - 1997-1999, serial 0K000858 to 0L602069

• MerCruiser 900 SC Dry Sump - serial 0L306805 to 0M901290

• MerCruiser 350 MAG Ski - 1991-1997, serial 0D505450 to 0K999999

• MerCruiser 350 MAG EFI Ski - 1994-1997, serial 0F215561 to 0K999999

• MerCruiser 350 MAG MPI Ski - 1995-1996, serial 0F350583 to 0F799999

• MerCruiser 454 EFI Ski Gen V - 1995, serial 0F215800 to 0F820099

• MerCruiser 454 MAG MPI Ski Gen VI - 1996-1997, serial 0F820100 to 0K999999

• MerCruiser 5.7L Competition Ski - 1987-1997, serial 0B514627 to 0K999999

• MerCruiser Black Scorpion 350 MAG Ski - 1996-2001, serial 0F800000 to 0M391599

• MerCruiser Black Scorpion MX 6.2L Ski - 2001-2002, serial 0L670015 to 0M391599

• MerCruiser 262 MAG TBI Gen+ - serial 0F803800 to 0K999999

• MerCruiser 4.3L Gen II / Gen+ - 1996-1997 where 27-8052151 is specified

• MerCruiser 5.0L / 5.0LX - 1988-1995 where 27-8052151 is specified

• MerCruiser 5.7L, 5.7LX, 5.7L EFI and 5.7L MIE - 1988-1997 where 27-8052151 is specified

• MerCruiser 350 MAG Alpha / Bravo / EFI / MPI - 1987-1997 where 27-8052151 is specified

• MerCruiser 454 MAG Bravo, 7.4L Bravo, 7.4L MIE, 7.4LX Bravo MPI / TBI - 1992-1997 where 27-8052151 is specified

• MerCruiser 502 MAG, 502 EFI and 8.2L MIE - 1992-1997 where 27-8052151 is specified

• Engine Type: MerCruiser petrol V6 and V8 sterndrive, inboard, Ski and high-performance engines

• System Type: Sea water pump / raw-water pump gasket

• Fitment Note: Match by raw-water pump assembly and serial-numbered cooling diagram before installation.

🔌 Function

The sea water pump gasket seals the pump cover or pump body joint so the raw-water pump can pull cooling water without air leakage or water loss.

Common signs of failure:

• Water seepage around sea water pump

• Reduced raw-water flow

• Pump losing prime

• Overheating after impeller service

• Gasket damage during pump disassembly

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging