I used this gasket to seal a 18mm to 14mm spark plug adapter on a vintage Vixen tester. I could only test 18mm spark plugs, but needed to be able to test 14mm plugs.
Charlie R
Verified Purchase
Copper Spark Plug Gasket M674
April 2, 2025
Perfect
Luis A
Verified Purchase
Copper Spark Plug Gasket M674
March 6, 2025
worked great!!
Brian M
Verified Purchase
Copper Spark Plug Gasket M674
February 11, 2025
Whirlybird M
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
January 12, 2025
Bruce L
Verified Purchase
Copper Spark Plug Gasket M674
December 26, 2024
Wesley S
Verified Purchase
Copper Spark Plug Gasket M674
November 30, 2024
Works exactly as advertised
Jason C
Verified Purchase
Copper Spark Plug Gasket M674
November 29, 2024
Order and delivery were fast.
Michel D
Verified Purchase
Copper Spark Plug Gasket M674
November 19, 2024
OEM Part, happy to have the proper part.
James B
Verified Purchase
Copper Spark Plug Gasket M674
November 13, 2024
As described
Ali S
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
November 10, 2024
Rick P
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
October 22, 2024
Gary B
Verified Purchase
Copper Spark Plug Gasket M674
October 8, 2024
Pat F
Verified Purchase
Copper Spark Plug Gasket M674
September 18, 2024
Douglas E
Verified Purchase
Copper Spark Plug Gasket M674
September 13, 2024
Probably a good idea to have a supply of these on hand.
Russel L
Verified Purchase
Copper Spark Plug Gasket M674
August 25, 2024
Salina R
Verified Purchase
Copper Spark Plug Gasket M674
August 21, 2024
David
Verified Purchase
Copper Spark Plug Gasket M674
August 14, 2024
Graf R
Verified Purchase
Copper Spark Plug Gasket M674
August 13, 2024
Andrew D
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
August 7, 2024
Looked good--put on spark plug tool box--new one each service
Robert L
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
July 30, 2024
These are always good to have on hand would never change plugs with putting news one in. Great value!
Joseph S
Verified Purchase
Copper Spark Plug Gasket M674
July 24, 2024
They work great.
William B
Verified Purchase
Copper Spark Plug Gasket M674
July 16, 2024
Spark plug gaskets fitted perfectly on my engine spark plugs, Shipping was fast.
Jose G
Verified Purchase
Copper Spark Plug Gasket M674
June 19, 2024
Exactly as ordered
Jason P
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
May 26, 2024
excellent
Paolo C
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
May 16, 2024
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
Just as ordered
Paul J
Verified Purchase
Copper Spark Plug Gasket M674
October 18, 2023
John E
Verified Purchase
Copper Spark Plug Gasket M674
September 20, 2023
Romeo T
Verified Purchase
Copper Spark Plug Gasket M674
September 20, 2023
Juan G
Verified Purchase
Copper Spark Plug Gasket M674
September 12, 2023
Aviation M
Verified Purchase
Copper Spark Plug Gasket M674
August 9, 2023
Ed P
Verified Purchase
Copper Spark Plug Gasket M674
July 24, 2023
Gargoyle G
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
July 23, 2023
Always change these at annual.
Michael K
Verified Purchase
Copper Spark Plug Gasket M674
July 20, 2023
Never have had any issues with theses gaskets. They work great.
Chris M
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
June 25, 2023
Good quality, fast shipping
Bruce B
Verified Purchase
Copper Spark Plug Gasket M674
June 22, 2023
always use these when cleaning plugs
John F
Verified Purchase
Copper Spark Plug Gasket M674
June 21, 2023
Scott R
Verified Purchase
Copper Spark Plug Gasket M674
May 30, 2023
Great Rings! Does the job.
Land A
May 25, 2023
👍
Steven W
Verified Purchase
Copper Spark Plug Gasket M674
May 24, 2023
Joel
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
May 13, 2023
Michael S
Verified Purchase
Copper Spark Plug Gasket M674
May 8, 2023
Good quality and must have if you’re changing your spark plugs
Marcos S
Verified Purchase
Copper Spark Plug Gasket M674
May 3, 2023
Great quality! Reasonable price.
Joseph S
Verified Purchase
Copper Spark Plug Gasket M674
April 20, 2023
Magaero L
Verified Purchase
Copper Spark Plug Gasket M674
April 10, 2023
Louis C
Verified Purchase
Copper Spark Plug Gasket M674
April 1, 2023
Appropriate item for my 7/8 spark plugs
John B
Verified Purchase
Copper Spark Plug Gasket M674
March 30, 2023
Magaero L
Verified Purchase
Copper Spark Plug Gasket M674
March 27, 2023
Great product
Michael B
Verified Purchase
Copper Spark Plug Gasket M674
February 25, 2023
The process was easy although the product almost doubled in price since the last time I bought some.
Duard H
Verified Purchase
Copper Spark Plug Gasket M674
February 24, 2023
Great!
George H
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
February 17, 2023
Prompt delivery
Roger J
Verified Purchase
Copper Spark Plug Gasket M674
February 14, 2023
Afelio S
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
January 24, 2023
👍
Timothy H
Verified Purchase
Copper Spark Plug Gasket M674
December 17, 2022
Ridgerunner A
Verified Purchase
Copper Spark Plug Gasket M674
November 21, 2022
Great copper gaskets!
Lewis M
Verified Purchase
Copper Spark Plug Gasket M674
November 16, 2022
I found more than 25% of these to be mangled and twisted. ---Hunter A&P / IA
Aloft A
Verified Purchase
Copper Spark Plug Gasket M674
November 11, 2022
A company you can count on
Loye H
Verified Purchase
Copper Spark Plug Gasket M674
October 19, 2022
Kenneth V
Verified Purchase
Copper Spark Plug Gasket M674
October 12, 2022
Price ok and fast shipping.
Tim O
Verified Purchase
Copper Spark Plug Gasket M674
October 11, 2022
As discribed
James D
Verified Purchase
Copper Spark Plug Gasket M674
October 4, 2022
As expected.
Randy B
Verified Purchase
Copper Spark Plug Gasket M674
September 11, 2022
James R
Verified Purchase
Copper Spark Plug Gasket M674
August 29, 2022
excellent product
Dave S
Verified Purchase
Copper Spark Plug Gasket M674
August 10, 2022
Mark H
Verified Purchase
Copper Spark Plug Gasket M674
August 5, 2022
AS Advertised
Keith C
Verified Purchase
Copper Spark Plug Gasket M674
August 4, 2022
Pw S
Verified Purchase
Copper Spark Plug Gasket M674
July 12, 2022
Leon A
Verified Purchase
Copper Spark Plug Gasket M674
July 9, 2022
Ralph P
Verified Purchase
Copper Spark Plug Gasket M674
June 24, 2022
Richard Y
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
June 22, 2022
They were backorder, but received them as promised
Jay R
Verified Purchase
Copper Spark Plug Gasket M674
June 20, 2022
Excellent spark plug gasket.
Milon W
Verified Purchase
Copper Spark Plug Gasket M674
June 19, 2022
ok
Crafton M
Verified Purchase
Copper Spark Plug Gasket M674
January 14, 2022
good
Timothy S
Verified Purchase
Copper Spark Plug Gasket M674
January 11, 2022
Randall B
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
October 28, 2021
Tony C
Verified Purchase
Copper Spark Plug Gasket M674
October 23, 2021
Andris J
Verified Purchase
Copper Spark Plug Gasket M674
October 12, 2021
Good and inexpensibe.
Jose B
Verified Purchase
Copper Spark Plug Gasket M674
October 10, 2021
Good price fast delivery
Philip
Verified Purchase
Copper Spark Plug Gasket M674
October 8, 2021
Good price fast delivery
Philip
Verified Purchase
Copper Spark Plug Gasket M674
October 8, 2021
Good price fast delivery
Philip
Verified Purchase
Copper Spark Plug Gasket M674
October 8, 2021
good service time
William J
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
September 25, 2021
Steve U
Verified Purchase
Copper Spark Plug Gasket M674
September 15, 2021
David A
Verified Purchase
Copper Spark Plug Gasket M674
September 11, 2021
Mike M
Verified Purchase
Copper Spark Plug Gasket M674
September 7, 2021
Good spark plug gaskets, and a way better price than the name brand ones.
Wayne H
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
August 21, 2021
Works as advertised
Mike P
Verified Purchase
Copper Spark Plug Gasket M674
August 19, 2021
As expected... good product and fast shipping.
Jimmy W
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
July 30, 2021
Always performs to specifications.
Pw S
Verified Purchase
Copper Spark Plug Gasket M674
July 21, 2021
Paradise P
Verified Purchase
Copper Spark Plug Gasket M674 (Pack Of 100)
July 7, 2021
Kazuo O
Verified Purchase
Copper Spark Plug Gasket M674
June 29, 2021
Kazuo O
Verified Purchase
Copper Spark Plug Gasket M674
June 29, 2021
Curt H
Verified Purchase
Copper Spark Plug Gasket M674
June 19, 2021
Copper gasket. It always works as it should.
Kim E
May 7, 2021
Got them. Thanks.
Peter M
April 16, 2021
Exactly as described...👍
Chip
January 20, 2021
They were reasonably priced, shipped and received promptly, were the right size. I didn’t count them, but no reason to think there were less than 100. Which should last me quite a long time - using them on a classic car with 2 plugs for each of it’s 6 enormous cylinders.
Pat
January 19, 2021
Exactly as advertised!
Dennis K
December 17, 2020
Buy 100 of the spark plug gaskets and you will not find a better price on new gaskets.
Peter T
December 9, 2020
They are round, which is good, and they fit my spark plugs, which is also good.
Victor B
November 24, 2020
great value.
The best price we could find.
Central A
September 2, 2020
Good price and work as expected.
Richard C
August 17, 2020
was just what I needed
J.
July 22, 2020
Heres the deal folks...All aircraft engine manufacturers specify using a NEW gaskets when removing and replacing aviation spark plugs. If you run a Repair Station or you are an A.I. you best be using NEW gaskets (and billed on your work orders) to avoid potential liability issues.
These generic branded M-674 gaskets are the correct Rockwell hardness and dimensions. We use thousands of gaskets per year and these Aircraft Spruce gaskets are now our #1 choice.
Plugguy.com
July 21, 2020
Look just like OEM. More convenient than buying a box of 100.
Donald S
June 30, 2020
no complains
David H
May 8, 2020
circular and flat, good stuff
Ernest U
April 23, 2020
I just watched a video on youtube of a fellow taking old gaskets and heating them with a blow torch to anneal them, so he could reuse them....even though they were crushed and had a raised lip. I like the idea of reusing things, but when a brand new copper gasket costs about 36 cents, that seems pretty stupid. Buy a handful of gaskets and let them sit in your tool box, and use them anytime you take a plug out...
Good product, very low price.
Michael V
April 16, 2020
excellent on time shipping
Central A
April 3, 2020
Excellent
Goodrich
March 19, 2020
Nice
Richard H
February 14, 2020
as expected
Mike K
February 8, 2020
This spark plug gasket is exceptionally round where it needs to be and flat in other places. It is also coppery.
Nathan
January 13, 2020
The spark plug gaskets were really round and... coppery
Paul I
November 3, 2019
Good price
Michael M
October 19, 2019
They are very shiny, I like them a lot.
David B
October 18, 2019
work as advertised
Ron K
September 28, 2019
good fit, worked well.
Seve
April 4, 2019
Works Perfectly.
How
October 8, 2018
excellent value! works well.
Chip
September 7, 2018
Brand new washers as expected. Very inexpensive and despite the old wives tales of just annealing old ones to save money brand new is the only way to go.
Dan D
July 5, 2018
Seem like nice washers! I recommend these!
Marty
December 26, 2017
I bought these in preparation for installing all new Champion plugs. Guess what? Each of the new plugs is packaged with a gasket so I didnt need them. Ill keep them around anyway for the next time the plugs are cleaned and gapped.
Bernie H
November 2, 2017
I bought these in preparation for installing all new Champion plugs. Guess what? Each of the new plugs is packaged with a gasket so I didnt need them. Ill keep them around anyway for the next time the plugs are cleaned and gapped.
Bernie H
November 2, 2017
delivered as ordered, excellent service
Dennis
August 12, 2017
We use 500-1000 gaskets a month. The quality control is excellent.
Jeanne F
August 11, 2017
perfect replacement , good looking product worked as advertised.
Jim
July 15, 2017
Proper fit and finish, good value.
Jim
July 13, 2017
perfect replacement when reusing sparkplugs
Rick
April 23, 2017
The image looks to me like it is showing one side to be rounded, but it is not. Both sides are flat, one side only has slightly rounded edges. They work fine.
John C
Verified Purchase
Copper Spark Plug Gasket M674
February 24, 2024
Good package of spares. Easy to find and add to order.
Mike P
March 9, 2021
Great value, but I miss the box. Perhaps they could be packaged in a ziplock?
Joel F
January 23, 2020
It took a little longer than I thought but good service, after a call with a courteous person that made things happen. No question I will be back..
David L
August 26, 2019
50% of the washers I ordered came completely warped
Mike
May 18, 2021
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