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Dougy Dee
Samba Member
Joined: August 21, 2004
Posts: 1760
Location: Niagara Region, CANADA
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 Posted: Wed May 25, 2011 6:36 am Post subject: Are Bosch W8AC Plugs Extinct? |
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Local supply here in Canada seems to be drying up with the WR8AC being substituted. I'm not a fan of 'R' or resistor plugs as I've chased problems with them in the past. The NGK cross keeps coming back as a 'R' plug too.
Are we going to have to change over to higher output ignitions to run these or have I just had a bunch of Bad plugs?
Is the resistor there just to suppress ignition noise so your stereo is cleaner or is there some other function? |
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tripicana
Samba Member
Joined: February 13, 2003
Posts: 1164
Location: colorado springs
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| Posted: Wed May 25, 2011 6:56 am Post subject: |
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i think they have discontinued the bosch plugs for our cars. i just cleaned, checked the gap, and threw mine back in.
don't know what a good replacement plug would be, im interested also.
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 79572
Location: Sneaking up behind you
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| Posted: Wed May 25, 2011 7:04 am Post subject: |
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Just get NGK B5HS, they will work just fine.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare
עַם יִשְׂרָאֵל חַי |
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JSMskater
Samba Grease Gorilla
Joined: February 01, 2006
Posts: 5362
Location: Murrieta California
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| Posted: Wed May 25, 2011 9:44 am Post subject: |
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| Glenn wrote: |
| Just get NGK B5HS, they will work just fine. |
the ones I get are B6HS. i think they're a slightly hotter plug.
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Dougy Dee
Samba Member
Joined: August 21, 2004
Posts: 1760
Location: Niagara Region, CANADA
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| Posted: Wed May 25, 2011 9:49 am Post subject: |
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I've managed to locate some of the Bosch plugs thru an industry contact.
I'll be trying some of the NGK's when this source dries up.
I was wondering if Bosch W8AC availability is a local issue or a global thing??? |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 79572
Location: Sneaking up behind you
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| Posted: Wed May 25, 2011 9:59 am Post subject: |
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| JSMskater wrote: |
| Glenn wrote: |
| Just get NGK B5HS, they will work just fine. |
the ones I get are B6HS. i think they're a slightly hotter plug. |
They're colder.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare
עַם יִשְׂרָאֵל חַי |
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pupjoint
Samba Member
Joined: May 23, 2007
Posts: 1145
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| Posted: Wed May 25, 2011 10:05 am Post subject: |
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| i wont even bother with bosch plugs, just get NGKs |
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jbbugs
Samba Member
Joined: September 16, 2002
Posts: 2180
Location: Behind the wheel
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| Posted: Wed May 25, 2011 3:39 pm Post subject: |
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NGK BP6HS has worked well for me for the last 29 years.
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[email protected]
Samba Member
Joined: May 17, 2003
Posts: 4876
Location: Harmony, PA
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| Posted: Wed May 25, 2011 8:06 pm Post subject: |
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| Not sure about the W8AC plugs, but the WR8AC plugs should still be readily available. Bosch has introduced this new metal into the mix called Yttrium (whatever the hell that is), and now labeled the plugs "Super Plus". They also have some new BS numbering system. A WR8AC is now crossed over as a #7902. The shop I work at uses the counterpart to the WR8BC, which is a #7903. The #7903 has a protruded electrode that the shop owner feels burns better. I think the resistor plugs have replaced the non-resistor ones. If you need/want the non-resistor ones go with the NGK B5HS (new #4210) Glenn mentioned, or a BP5HS (#4111) for the protruded electrode. |
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Nirvana92
Samba Member
Joined: November 02, 2008
Posts: 295
Location: Waxhaw , North Carolina
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| Posted: Wed May 25, 2011 8:09 pm Post subject: |
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where can i get the ngk B5HS plugs at?? all i can find at advance auto or autozone is BP6HS
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Bigmeat
Samba Member
Joined: February 24, 2007
Posts: 304
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| Posted: Wed May 25, 2011 8:11 pm Post subject: |
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| I by mine at napa. |
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Nirvana92
Samba Member
Joined: November 02, 2008
Posts: 295
Location: Waxhaw , North Carolina
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| Posted: Wed May 25, 2011 8:14 pm Post subject: |
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i always forget about that place 
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1970 beetle 1600 SP with 019 distributor |
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[email protected]
Samba Member
Joined: May 17, 2003
Posts: 4876
Location: Harmony, PA
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| Posted: Wed May 25, 2011 8:19 pm Post subject: |
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| Nirvana92 wrote: |
| where can i get the ngk B5HS plugs at?? all i can find at advance auto or autozone is BP6HS |
Autozone has them listed on their web site, but they're special order. You should be able to get them within a day, or two. Advance doesn't have a listing on their site, but I would imagine they could get them within a couple of days also. Look for them using NGK's new numbering system as #4210 |
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leaker
Samba Member
Joined: May 18, 2009
Posts: 348
Location: richmond,va
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| Posted: Thu May 26, 2011 1:59 pm Post subject: |
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| Sparkplugs.com shows the w8ac as being obsolete too,and I agree NGKs from Napa,they stock all the weird shit. |
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The_Codeman
Samba Member
Joined: April 05, 2007
Posts: 176
Location: Huntington Beach CA
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| Posted: Thu May 26, 2011 3:16 pm Post subject: |
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Also check motorcycle shops they sell them also thats where i get mine
i use the BP5HS work great
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didget69
Samba Member
Joined: July 22, 2004
Posts: 4941
Location: Raleigh, North Carolina
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| Posted: Sat May 28, 2011 8:56 pm Post subject: |
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| Nirvana92 wrote: |
| where can i get the ngk B5HS plugs at?? all i can find at advance auto or autozone is BP6HS |
Try Carquest; they bought WorldPac some years ago & usually have decent foreign car parts...
bnc
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Howard 111
Samba Member
Joined: July 09, 2005
Posts: 1827
Location: Virginia
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Vw1600dellortoGR
Samba Member
Joined: May 01, 2012
Posts: 267
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| Posted: Fri Jun 07, 2013 6:50 am Post subject: |
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| Will w3ac spark plugs do the job? German bosch are hard to come by |
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Bashr52
Samba Member
Joined: July 16, 2006
Posts: 5669
Location: On an island in VA
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| Posted: Fri Jun 07, 2013 7:54 am Post subject: |
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| Are these the 14 or 12mm plugs? I need to get some 12mm for my new heads. |
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Dougy Dee
Samba Member
Joined: August 21, 2004
Posts: 1760
Location: Niagara Region, CANADA
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| Posted: Sat Aug 03, 2013 6:18 am Post subject: |
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| Bashr52 wrote: |
| Are these the 14 or 12mm plugs? I need to get some 12mm for my new heads. |
http://www.ngksparkplugs.com/docs/tech/design_symbols_plugs.pdf
First digit indicates thread size.
ie: 14mm is B.
12mm could be D, DC or J.
Length is the 'E' or 'H' digit which indicates "3/4" or "1/2". |
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