Spark Plugs

[Rick7576]

Where can I find(in stock)Tempest URHM38E  or Champion RHM38E plugs? 

I have them on back order since May 12 from Aircraft Spruce. looking for 12. 

Cheers Rick

[MARZ]

https://www.ebay.com/itm/224544284267?epid=1523713579&hash=item3447e1de6b:g:RgcAAOSwwhdgP0jO

https://www.ebay.com/itm/224549495016?epid=1622103491&hash=item34483160e8:g:WHsAAOSwEPNgZgt-

 

Edited August 5, 2021 by MARZ

[StevenL757]

1 hour ago, Rick7576 said:

Where can I find(in stock)Tempest URHM38E  or Champion RHM38E plugs? 

I have them on back order since May 12 from Aircraft Spruce. looking for 12. 

Cheers Rick

Rick, have you considered spending a bit more and going with the Iridium Finewire option (URHM38S)?  Extremely well-worth the additional cost, and both the single and boxes of 12 are available now.

Steve

[Brian E.]

48 minutes ago, StevenL757 said:

Rick, have you considered spending a bit more and going with the Iridium Finewire option (URHM38S)?  Extremely well-worth the additional cost, and both the single and boxes of 12 are available now.

Steve

Looks like the Finewire prices have come down a bit in the past couple of months.  When I bought them for my lower cylinders I spent ~$80 each.  I was shocked to see them ~$130ish earlier this year...

 

  Highly recommended but a little patience may save you a few.  Yes I know in the grand scheme of ac ownership this isn't much, but I can't help to think we're paying way more than we should.

[RLCarter]

Spruce has the Champions in stock

[kortopates]

If you're planning to keep the plane and especially if you're planning to fly LOP, go for the Tempest Fine wires - especially with a K. In the end they'll be cheaper because they last at least 1/2 of TBO and don't require the amount of maintenance massives do.

[Will.iam]

2 hours ago, kortopates said:

If you're planning to keep the plane and especially if you're planning to fly LOP, go for the Tempest Fine wires - especially with a K. In the end they'll be cheaper because they last at least 1/2 of TBO and don't require the amount of maintenance massives do.

+1 and done.

[Rick7576]

OK  Thanks everyone for your help.  Looks like I'm going to drop the big bucks and get a dozen rare earth metal plugs !

Cheers Rick

[philiplane]

I have a box of Unison (now Tempest) URHM38E plugs I can ship today. These have been on the shelf for about 8 years. I'm cleaning out some excess inventory and I don't need these. $250 shipped.

PM me asap. or gjuber at hotmail dot com

Edited August 6, 2021 by philiplane

[A64Pilot]

1 hour ago, Rick7576 said:

OK  Thanks everyone for your help.  Looks like I'm going to drop the big bucks and get a dozen rare earth metal plugs !

Cheers Rick

They are worth it, be careful cleaning them and they will outlast the engine. I used to pick them clean with an awl, nothing else required, I rotated them top to bottom every cleaning.

On my IO-540 they made starts a lot faster and I could run smoothly further LOP.