Ton ton
Well-known member
Figured out I don't have a 9/16" spark plug socket. Anyone have suggestions other than Amazon? Thank you for your time.
Where to buy 9/16" spark plug socket?
- Thread starter Ton ton
- Start date
jsmeece
Well-known member
I read on-line somewhere, maybe amazon reviews, that the gearwrench 9/16 swivel spark plug sockets were junk, very sloppy tolerances or didn't fit certain spark plugs at all. I don't have any vehicles that use 9/16 plugs so I have not bought any yet.
rlitman
Well-known member
Do you have a 14mm plug socket?
But perhaps GearWrench is making the socket actually 9/16"? That would be very sloppy.
What I discovered when I bought one of these is that while 9/16" is not the same size as 14mm, when it comes to spark plugs, it IS. All spark plugs made in this size are technically metric. And plug sockets SHOULD be made to the plug standards (set by ISO), and not their "nominal" sizes, so 9/16" and 14mm plug sockets SHOULD be interchangeable, even though 9/16" and 14mm deep sockets (which look the same) are not.
But perhaps GearWrench is making the socket actually 9/16"? That would be very sloppy.
sparky 1971
Well-known member
I have both of these, but I can promise you that I didn't pay these prices for them. I know I bought both of them new and I think it was from Circle C when they still carried SK, but I'm too cheap for that kind of money, at least for a spark plug socket. I don't think I've ever used the standard socket, but the flex, along with a locking extension is fantastic.
www.zoro.com
www.zoro.com
Sk Professional Tools 3/8 in Drive, 9/16" SAE Socket, 6 Points 4419 | Zoro
Order Sk Professional Tools 3/8 in Drive, 9/16" SAE Socket, 6 Points, 4419 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.
www.zoro.com
Sk Professional Tools 3/8 in Drive, 9/16" SAE Socket, 6 Points 4478 | Zoro
Order Sk Professional Tools 3/8 in Drive, 9/16" SAE Socket, 6 Points, 4478 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.
www.zoro.com
WWheeler
Well-known member
I've used mine MAN MANY MANY times with zero issues.
I do also have a modified Gearwrench magnetic swivel specifically for Ford Triton plugs which are non-standard sized (you know, the dumbest designed plugs in motor vehicle history that are notorious for breaking the ceramic off in your head more often than not when you're trying to remove them - edit: your best bet is to remove them with the engine HOT with a small impact) and they need more room than a magnetic socket typically will have. I didn't modify it myself. Many places sell, or at least used to, the modified Triton spark plug sockets. I think I bought mine off ebay 4-5 years ago for the same price as an unmodified one.
9/16" is a standard spark plug size, so any auto parts store should sell them.
Sometimes your local hardware store will have spark plug sockets too.
Also, the Gearwrench 9/16" spark plug sockets (not just a regular deep socket), both with and without swivel have worked just fine for me. Though I have dedicated Snap On 14mm's for my Nissan.
Sometimes your local hardware store will have spark plug sockets too.
Also, the Gearwrench 9/16" spark plug sockets (not just a regular deep socket), both with and without swivel have worked just fine for me. Though I have dedicated Snap On 14mm's for my Nissan.
BlakeTheCarGuy
ALLIANCE MEMBER
I’ve got the TEQ from Advance Auto before they got the Diehard. I’d say Diehard has the same one and I know I’ve seen them at O’Reilly before.
dnschmidt
Well-known member
14mm or 9/16" both work fine. You can get them cheap from Performance Tool on Rock Auto. Naturally I use TOPTUL.
Proto JFP9SET 9-Piece Spark Plug Set comes with three! (and of course, three more each in 5/8-inch and 13/16-inch). Be ready to tackle any spark plug challenge. 
Made in Taiwan, but very beautiful. Those long sockets are HEAVY. They feel like they could double as handle-less hammers. Knurling is fantastic.
Sunex also makes a good looking set. No swivels though:
Of course, you could probably buy the Proto as a single - but if you get the set you will be the envy of all your friends!
Made in Taiwan, but very beautiful. Those long sockets are HEAVY. They feel like they could double as handle-less hammers. Knurling is fantastic.
Sunex also makes a good looking set. No swivels though:
Of course, you could probably buy the Proto as a single - but if you get the set you will be the envy of all your friends!