NGK DRP 7EA-9 socket size - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 20 (permalink) Old 12-02-2010, 12:08 AM Thread Starter
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NGK DRP 7EA-9 socket size

None of my sockets seem to fit well on this plug. I got the shallow ones out with a deep 18mm socket but the deep ones seem to require a low profile socket. Am I missing something? For decades I've changed plugs in cars, boats, ,mowers, etc and I've never seen this odd plug size.
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post #2 of 20 (permalink) Old 12-02-2010, 05:05 AM
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you need to get a deep socket 18 and grind it down to fit

thats how i did mine
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post #3 of 20 (permalink) Old 12-02-2010, 06:36 AM
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Quote:
Originally Posted by luigit View Post
you need to get a deep socket 18 and grind it down to fit thats how i did mine
Or the thinner wall sears deep well 18mm, it works without grinding...
Have a good one...Old Dog...

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post #4 of 20 (permalink) Old 12-02-2010, 11:47 AM
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Yup. I went to sears and bought the thin wall 18mm deep socket and I have no trouble at all.

When I went to buy it it didn't actually say "thin wall" or anything else on it, just 18mm, but you can tell when you look at it that it is thinner than regular sockets.
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post #5 of 20 (permalink) Old 12-02-2010, 12:52 PM
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Quote:
Originally Posted by RobertGary1 View Post
None of my sockets seem to fit well on this plug. I got the shallow ones out with a deep 18mm socket but the deep ones seem to require a low profile socket. Am I missing something? For decades I've changed plugs in cars, boats, ,mowers, etc and I've never seen this odd plug size.
I changed my plugs last night and used the plug wrench from the "tool kit" that comes with the bag. Worked well.

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post #6 of 20 (permalink) Old 12-02-2010, 02:21 PM
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Quote:
Originally Posted by Ceal View Post
Yup. I went to sears and bought the thin wall 18mm deep socket and I have no trouble at all.

When I went to buy it it didn't actually say "thin wall" or anything else on it, just 18mm, but you can tell when you look at it that it is thinner than regular sockets.
Could you give us the part number off the socket?
I know somebody gave a Sears or Craftsman p/n for one a long time ago, but I can`t find it now.

I looked in Sears, but couldn`t find one in the store. The socket that came with my bike`s toolkit does work though.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
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post #7 of 20 (permalink) Old 12-02-2010, 02:45 PM
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OHC-The one I have is not a Sparkplug (no inner rubber boot) socket but a standard deep well 3/8" Dr. x 18mm Craftsman G and is thin walled, and the number on the socket is 44435...
That might be a catalog number, not sure...
Have a good one...Old Dog...

Southern Central Tennessee.......
Now on the Dark Side......
Girl's Bike 09 Sporty xl 1200 Custom...33k + & clickin......
Sportster Owner/Rider since age 72...lol... Rider since Simplex...???
09-xl1200 "C" Vivid Black, Cast wheels w/19" Frt., SE-Stage 1+, X14iEDs...
MicroTach +, Higher wider H-bars, GPS Mt., Mustach bar Hwy. pegs...
Viking Shock cutout Saddlebags, Rear Mt. Signal Lt. Kit, Fork Brace...
RoadKing Air Shocks, Mustang Seat, Progressive Fork Springs...
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post #8 of 20 (permalink) Old 12-02-2010, 03:53 PM
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Quote:
Originally Posted by Old Dog View Post
OHC-The one I have is not a Sparkplug (no inner rubber boot) socket but a standard deep well 3/8" Dr. x 18mm Craftsman G and is thin walled, and the number on the socket is 44435...
That might be a catalog number, not sure...
Have a good one...Old Dog...
Thanks OD, I`m sure that p/n will get the right socket if I go looking again.
Just for giggles I should stick a pair of dividers down to the bottom of the spark plug tube to measure the diameter.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/showthread.php?t=9127

Last edited by OlHossCanada; 12-02-2010 at 03:56 PM.
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post #9 of 20 (permalink) Old 12-02-2010, 04:16 PM
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OHC-The socket I have measures 0.9285" O.D., and has but 0.055" Avg. thickness at the points, much thinner walls would make it about too weak to use...
Have a good one...Old Dog...

Southern Central Tennessee.......
Now on the Dark Side......
Girl's Bike 09 Sporty xl 1200 Custom...33k + & clickin......
Sportster Owner/Rider since age 72...lol... Rider since Simplex...???
09-xl1200 "C" Vivid Black, Cast wheels w/19" Frt., SE-Stage 1+, X14iEDs...
MicroTach +, Higher wider H-bars, GPS Mt., Mustach bar Hwy. pegs...
Viking Shock cutout Saddlebags, Rear Mt. Signal Lt. Kit, Fork Brace...
RoadKing Air Shocks, Mustang Seat, Progressive Fork Springs...
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post #10 of 20 (permalink) Old 12-02-2010, 04:22 PM
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I got my 18mm deep socket at Auto Zone and it works fine.

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