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Copper Spark Plug Gaskets - 18MM

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Single GasketPack of 100
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Overview

AN4027-1, 18MM. These are the AN4027-1 18mm copper spark plug gaskets.

20% Discount on Box of 100
Made of solid copper to current aircraft standards. Available in 14 MM and 18 MM sizes.
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Reviews

Domingo A Verified Purchase

COPPER SPARK PLUG GASKET M674 (PACK OF 100)

April 16, 2024

Should always replace whenever a sparkplug is removed and reinserted.

Gary C Verified Purchase

COPPER SPARK PLUG GASKET M674

April 4, 2024

Wolf M Verified Purchase

COPPER SPARK PLUG GASKET M674

March 31, 2024

Parfait

Gilles C Verified Purchase

COPPER SPARK PLUG GASKET M674

March 27, 2024

Spark plug gaskets: the unsung heroes of combustion engines! With these tiny wonders snugly sealing my spark plugs, my engine runs smoother than a jazz saxophonist on a Sunday morning. No more pesky leaks or misfires disrupting the harmony of my ride. These gaskets are like the silent guardians of engine performance, ensuring every ignition is a symphony of power and efficiency. Trust me, your engine will thank you with purrs of satisfaction!

Marc M Verified Purchase

COPPER SPARK PLUG GASKET M674

March 16, 2024

Very satisfactory!

Duard H Verified Purchase

COPPER SPARK PLUG GASKET M674

March 14, 2024

Robert N Verified Purchase

COPPER SPARK PLUG GASKET M674 (PACK OF 100)

March 12, 2024

arrived promptly...looks good...but have not installed yet.

John G Verified Purchase

COPPER SPARK PLUG GASKET M674

November 30, 2023

Mike S Verified Purchase

COPPER SPARK PLUG GASKET M674

November 3, 2023

Shipped quickly

Leroy W Verified Purchase

COPPER SPARK PLUG GASKET M674

October 24, 2023

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Will these gaskets work on Tempest spark plugs? Tempest has part number UM-674.

Yes, these copper spark plug gaskets will work on Tempest or Champion plugs.

Q: Part # 07-00877: Please inform Inside Diameter & Thickness

.71" ID or just over 18mm OD. 0.08 thick.

Q: Are the 18mm gaskets right for the O320 Lyc ?

Yes, that would be correct.

Q: Are the 18mm gaskets used for a Lycoming IO-360 with Champion plugs?

Yes, the IO-360 will use 18mm plugs.

Q: would these work with lycoming IO540 with Champion REM38E plugs?

Yes, REM38E are 18mm plugs. These will work.

Q: Work on rem37by plugs? Champion

Yes, the REM37BY plugs are 18mm.

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