2762386001 Mercury MerCruiser Thermostat Gasket | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Thermostat Gasket - Part Number: 27-62386001

A genuine Quicksilver thermostat gasket used in selected Mercury and Mariner outboard thermostat and cylinder head cooling assemblies. This gasket cross-references with the 27-62386 family and has later replacement reference 27-8M0204714 where the Mercury catalogue applies that service update.

⚙️ Key Features

• Genuine Quicksilver OEM thermostat gasket

• Correct Mercury part number 27-62386001

• Replaces / cross-references with 27-62386 and 27-62386B

• Later related service reference 27-8M0204714

• Used across Mercury / Mariner 2-stroke, EFI and DFI / OptiMax cooling-system thermostat applications where specified

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 27-8M0204714 → Replaces 27-62386001 where specified

• 27-62386001 → Related to 27-62386

• 27-62386 earlier thermostat gasket reference

OEM / Related Numbers:

• 27-62386001

• 62386001

• 2762386001

• 27-62386

• 62386

• 27-62386B

• 62386B

• 27-8M0204714

• 8M0204714

Aftermarket / Verified Equivalents:

• Sierra: 18-0182

• GLM: 30610

• Mallory: 9-60002

• EMP: 105-27-00424

• Johnson / Evinrude: 0306162

• Johnson / Evinrude: 0310058

🚤 Compatibility

Commonly used on:

• Mercury / Mariner thermostat and thermostat cover gasket applications

• Mercury DFI / OptiMax 1.5L and 2.5L cooling-system gasket assemblies

Typically suits:

• Engine models:

• Mercury 15HP - serial 0T980000 to 0T999999

• Mercury 15HP - serial 1B000001 and up

• Mercury 15HP Marathon - serial 1B000001 and up

• Mercury 15HP SeaPro - serial 1B000001 and up

• Mercury 20 Jet - serial 1B000001 and up

• Mercury 40 Jet - serial 0T980000 and up

• Mercury 55HP 3-cylinder - serial 0T980000 and up

• Mercury 75HP 3-cylinder - serial 0T980000 to 0T999999

• Mercury 75HP 3-cylinder - serial 1B000001 and up

• Mercury 80 Jet - serial 0T980000 to 0T999999

• Mercury 80 Jet - serial 1B000001 and up

• Mercury 90HP 3-cylinder - serial 0T980000 to 0T999999

• Mercury 90HP 3-cylinder - serial 1B000001 and up

• Mercury 75 DFI 1.5L 3-cylinder - serial 0T980000 to 1B226999

• Mercury 75 DFI 1.5L 3-cylinder - serial 1B227000 to 1B417701

• Mercury 75 DFI 1.5L 3-cylinder - serial 1B417702 to 1B736885

• Mercury 75 DFI 1.5L 3-cylinder - serial 1B736885 and up

• Mercury 80 Jet DFI 1.5L 3-cylinder - serial 1B586067 to 1B736885

• Mercury 80 Jet DFI 1.5L 3-cylinder - serial 1B736885 and up

• Mercury 90 DFI 1.5L 3-cylinder - serial 0T801000 to 1B226999

• Mercury 90 DFI 1.5L 3-cylinder - serial 1B227000 to 1B417701

• Mercury 90 DFI 1.5L 3-cylinder - serial 1B417702 to 1B736885

• Mercury 90 DFI 1.5L 3-cylinder - serial 1B736885 and up

• Mercury 115 DFI 1.5L 3-cylinder - serial 0T801000 to 1B226999

• Mercury 115 DFI 1.5L 3-cylinder - serial 1B227000 to 1B417701

• Mercury 115 DFI 1.5L 3-cylinder - serial 1B417702 to 1B736885

• Mercury 115 DFI 1.5L 3-cylinder - serial 1B736885 and up

• Mercury 115 Pro XS 1.5L 3-cylinder - serial 1B751825 and up

• Mercury 125 DFI 1.5L 3-cylinder - serial 1B736885 and up

• Mercury V-135 DFI 2.5L - serial 0T801000 to 1B226999

• Mercury V-135 DFI 2.5L - serial 1B227000 to 1B417701

• Mercury V-135 DFI 2.5L - serial 1B417702 and up

• Mercury V-150 DFI 2.5L - serial 0T801000 to 1B226999

• Mercury V-150 DFI 2.5L - serial 1B227000 to 1B417701

• Mercury V-150 DFI 2.5L - serial 1B417702 and up

• Mercury V-175 DFI 2.5L - serial 0T801000 to 1B226999

• Mercury V-175 DFI 2.5L - serial 1B227000 to 1B417701

• Mercury V-175 DFI 2.5L - serial 1B417702 and up

• Mercury V-150 EFI 2.5L - serial 0T801000 to 1B226999

• Mercury V-150 EFI 2.5L - serial 1B227000 and up

• Mercury V-200 EFI 2.5L - serial 0T801000 to 1B226999

• Mercury V-200 EFI 2.5L - serial 1B227000 and up

• HP Range: broad thermostat-family usage where the serial-numbered thermostat diagram specifies 27-62386001 or 27-8M0204714

• Engine Type: Mercury / Mariner 2-stroke, EFI and DFI / OptiMax outboard

• System Type: Thermostat gasket / cooling system seal

🔌 Function

The thermostat gasket seals the thermostat housing or cover joint so the cooling system can regulate temperature without water leakage or pressure loss.

Common signs of failure:

• Water leakage around thermostat cover

• Overheating from poor thermostat sealing

• Salt build-up around housing joint

• Torn gasket during thermostat service

• Thermostat cover will not seal after removal

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging