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

Perfect

Luis A Verified Purchase

Copper Spark Plug Gasket M674

worked great!!

Brian M Verified Purchase

Copper Spark Plug Gasket M674

Works exactly as advertised

Jason C Verified Purchase

Copper Spark Plug Gasket M674

Order and delivery were fast.

Michel D Verified Purchase

Copper Spark Plug Gasket M674

OEM Part, happy to have the proper part.

James B Verified Purchase

Copper Spark Plug Gasket M674

As described

Ali S Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

Probably a good idea to have a supply of these on hand.

Russel L Verified Purchase

Copper Spark Plug Gasket M674

Looked good--put on spark plug tool box--new one each service

Robert L Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

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

They work great.

William B Verified Purchase

Copper Spark Plug Gasket M674

Spark plug gaskets fitted perfectly on my engine spark plugs, Shipping was fast.

Jose G Verified Purchase

Copper Spark Plug Gasket M674

Exactly as ordered

Jason P Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

excellent

Paolo C Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

Should always replace whenever a sparkplug is removed and reinserted.

Gary C Verified Purchase

Copper Spark Plug Gasket M674

Parfait

Gilles C Verified Purchase

Copper Spark Plug Gasket M674

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

Very satisfactory!

Duard H Verified Purchase

Copper Spark Plug Gasket M674

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

John G Verified Purchase

Copper Spark Plug Gasket M674

Shipped quickly

Leroy W Verified Purchase

Copper Spark Plug Gasket M674

Just as ordered

Paul J Verified Purchase

Copper Spark Plug Gasket M674

Always change these at annual.

Michael K Verified Purchase

Copper Spark Plug Gasket M674

Never have had any issues with theses gaskets. They work great.

Chris M Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

Good quality, fast shipping

Bruce B Verified Purchase

Copper Spark Plug Gasket M674

always use these when cleaning plugs

John F Verified Purchase

Copper Spark Plug Gasket M674

Great Rings! Does the job.

👍

Steven W Verified Purchase

Copper Spark Plug Gasket M674

Good quality and must have if you’re changing your spark plugs

Marcos S Verified Purchase

Copper Spark Plug Gasket M674

Great quality! Reasonable price.

Joseph S Verified Purchase

Copper Spark Plug Gasket M674

Appropriate item for my 7/8 spark plugs

John B Verified Purchase

Copper Spark Plug Gasket M674

Great product

Michael B Verified Purchase

Copper Spark Plug Gasket M674

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

Great!

George H Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

Prompt delivery

Roger J Verified Purchase

Copper Spark Plug Gasket M674

👍

Timothy H Verified Purchase

Copper Spark Plug Gasket M674

Great copper gaskets!

Lewis M Verified Purchase

Copper Spark Plug Gasket M674

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

A company you can count on

Loye H Verified Purchase

Copper Spark Plug Gasket M674

Price ok and fast shipping.

Tim O Verified Purchase

Copper Spark Plug Gasket M674

As discribed

James D Verified Purchase

Copper Spark Plug Gasket M674

As expected.

Randy B Verified Purchase

Copper Spark Plug Gasket M674

excellent product

Dave S Verified Purchase

Copper Spark Plug Gasket M674

AS Advertised

Keith C Verified Purchase

Copper Spark Plug Gasket M674

They were backorder, but received them as promised

Jay R Verified Purchase

Copper Spark Plug Gasket M674

Excellent spark plug gasket.

Milon W Verified Purchase

Copper Spark Plug Gasket M674

ok

Crafton M Verified Purchase

Copper Spark Plug Gasket M674

good

Timothy S Verified Purchase

Copper Spark Plug Gasket M674

Good and inexpensibe.

Jose B Verified Purchase

Copper Spark Plug Gasket M674

Good price fast delivery

Philip Verified Purchase

Copper Spark Plug Gasket M674

Good price fast delivery

Philip Verified Purchase

Copper Spark Plug Gasket M674

Good price fast delivery

Philip Verified Purchase

Copper Spark Plug Gasket M674

good service time

William J Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

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)

Works as advertised

Mike P Verified Purchase

Copper Spark Plug Gasket M674

As expected... good product and fast shipping.

Jimmy W Verified Purchase

Copper Spark Plug Gasket M674 (Pack Of 100)

Always performs to specifications.

Pw S Verified Purchase

Copper Spark Plug Gasket M674

Copper gasket. It always works as it should.

Got them. Thanks.

Exactly as described...👍

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.

Exactly as advertised!

Buy 100 of the spark plug gaskets and you will not find a better price on new gaskets.

They are round, which is good, and they fit my spark plugs, which is also good.

great value. The best price we could find.

Good price and work as expected.

was just what I needed

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.

Look just like OEM. More convenient than buying a box of 100.

no complains

circular and flat, good stuff

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.

excellent on time shipping

Excellent

Nice

as expected

This spark plug gasket is exceptionally round where it needs to be and flat in other places. It is also coppery.

The spark plug gaskets were really round and... coppery

Good price

They are very shiny, I like them a lot.

work as advertised

good fit, worked well.

Works Perfectly.

excellent value! works well.

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.

Seem like nice washers! I recommend these!

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.

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.

delivered as ordered, excellent service

We use 500-1000 gaskets a month. The quality control is excellent.

perfect replacement , good looking product worked as advertised.

Proper fit and finish, good value.

perfect replacement when reusing sparkplugs

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

Good package of spares. Easy to find and add to order.

Great value, but I miss the box. Perhaps they could be packaged in a ziplock?

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..

50% of the washers I ordered came completely warped