Spark Plugs - WTF?, $50 per plug |
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Spark Plugs - WTF?, $50 per plug |
DennisV |
Mar 4 2023, 08:25 AM
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#1
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Member Group: Members Posts: 468 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California |
Seriously. What is up with spark plug prices? I am painfully familiar with the Porsche tax, but $47 per plug from the "discount" Porsche Parts dealers? That's for 1 plug best I can tell. (IMG:style_emoticons/default/blink.gif)
This is for 1970 914-6. Very stock 2.0L with CDI ignition and MARELLI distributor. I'm searching the factory parts catalog numbers and what they superseded to:
Thought maybe I could go direct to Bosch, but neither the Porsche part numbers or the product locator by model bring up any matches. I did come up with some indirect matches for a Bosch WR5DC at $5 each. Based on other threads, and what's available, the NGK BR6ES also seems like the reasonable path for $5. Am I missing something? (IMG:style_emoticons/default/confused24.gif) |
mb911 |
Mar 4 2023, 08:28 AM
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#2
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914 Guru Group: Members Posts: 6,851 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
Because no one buys spark plugs from Porsche. Spend the 5 bucks on NGK or Bosch. No one will every see them.
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mlindner |
Mar 4 2023, 09:36 AM
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#3
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Senior Member Group: Members Posts: 1,521 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest |
As Ben said. I use NGK's in my 2.2 six. I have NGK 7s, 6s and BR5es. I run a little rich so I now run the NGK 5s (hotter plug).
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Superhawk996 |
Mar 4 2023, 10:18 AM
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#4
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914 Guru Group: Members Posts: 5,824 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
(IMG:style_emoticons/default/av-943.gif)
$5 spark plug $45 Porsche tax The nickname stealerships didn’t get invented without reason! |
technicalninja |
Mar 4 2023, 11:18 AM
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#5
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Senior Member Group: Members Posts: 1,222 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region |
I've watched spark plug technology change over the last 4 decades.
The real ticket now-days is iridium plugs for street based vehicles. In a modern COP installation they can last 150-200K and when customers ask "When should I tune it up" I respond NEVER! I tell them they should wait till the MIL (malfunction indicator lamp) come on and a p030X code comes up and then change them all. Many V6/V8 require removal of the upper intake plenum to access the plugs and a "spark plug replacement" can hit $600 on a bad one. I have seen NGK take over the spark plug world. All Chevrolets use them, most Fords, 90% of the imports use them, etc I prefer NGK over all other brands and in 40 years of active vehicle repair I've had 1 bad one out of the box. Use the NGK at $5, they will not let you down. I want to find an iridium version of that plug so I will never have to change them again.... Normally iridium versions are 2-4 time the cost of copper variants. A quick check on Rock Auto for 75 914 2.0 is showing two Denso Iridiums available. Part # 5306 and 4709 are available for 5.14/5.79 and part number 5306 has removable wire connections. This is most likely the one I'll use. The copper NGK are 1.76 each. If I cannot get NGK my second choice is Denso followed by Bosch. Bosch nickels list at 96 cents! This is most likely the plug the dealer is selling... Just re-checked using 70 914-6 Bosch not available. Denso iridium 5307 is 5.79 and NGK copper is 1.76. I'd try the Denso first. One issue with Iridium. They will survive a nuclear event, but they are brittle. Use EXTREME care when adjusting gap and ONLY bend the ground strap without touching the electrode. I DO NOT use a gap gauge for this. Feeler gauge with a light touch is how I go. |
930cabman |
Mar 5 2023, 06:35 PM
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#6
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Advanced Member Group: Members Posts: 3,064 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
+1 with Iridium, my former 356sc would foul #3 often, an Iridium fixed that for good. I can't remember the price per plug, but well worth it. 15 years later she still fires great
$50./ plug no way for me |
MSGGrunt |
Mar 5 2023, 06:57 PM
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#7
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Newbie Group: Members Posts: 44 Joined: 25-January 23 From: Western Massachusetts, USA Member No.: 27,119 Region Association: North East States |
Do the Iridium's really work well in the older Porsche motors?
I have a 1985 2.8 DOHC straight six Mercedes M110 that doesn't like anything but old school non resistor copper plugs. Same for a 1983 Jaguar XJ6 I own. You try running any of the newer plugs and these motors will let you know they are not happy. Of course, finding non-resistor copper plugs isn't as easy as it used to be. |
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