AC To Champion Plug Conversion

[Michael H.]

Does anyone have an AC to Champion spark plug conversion chart? I don't trust the guy at the auto parts.
Need the champion equivalent for 43N and 44N. Thanks.

[Mark F.]

Re: AC To Champion Plug Conversion

MIke,
Don't have mine in front of me. However, if you search on the your computer, there are many websites that show the conversions. I have actually done this many times because I didn't trust the kid behind the counter either.

[Jack H.]

Re: AC To Champion Plug Conversion

I did a quickie Google search and got:

AC43N = Champ N14YC
AC44N = Champ N12YC

But, those are the opinions of various web sites citing cross reference tables...

[Michael H.]

Re: AC To Champion Plug Conversion

Thanks Guys. I just found a chart on line. They show different numbers though.

43N is supposed to be a N3C.
44N " " " " N4C.

?????????????????

http://www.sparkplug-crossreference.com/

[Steven B.]

Re: AC To Champion Plug Conversion

Michael, somewhere around here I have a chart from the mid 60's. If I can find it I willl post.

Steve

[Joe L.]

Re: AC To Champion Plug Conversion

Thanks Guys. I just found a chart on line. They show different numbers though.

43N is supposed to be a N3C.
44N " " " " N4C.

?????????????????

http://www.sparkplug-crossreference.com/

Michael-----


These are the correct conversions. The N12YC and N14YC that Jack mentioned are the EXTENDED TIP versions of the 44N and 43N.

[Michael H.]

Re: AC To Champion Plug Conversion

Michael-----


These are the correct conversions. The N12YC and N14YC that Jack mentioned are the EXTENDED TIP versions of the 44N and 43N.

Thanks Joe. The NON extended tip is what I'm looking for so, N4C it will be.

[Bill M.]

Re: AC To Champion Plug Conversion

My 1967 chart shows:

43N = N-10Y
44N = N-5 or UN-12Y(OHV engines only)

N = 14mm, 3/4 reach
Y = projected core nose
U = Booster gap

[Michael H.]

Re: AC To Champion Plug Conversion

My 1967 chart shows:

43N = N-10Y
44N = N-5 or UN-12Y(OHV engines only)

N = 14mm, 3/4 reach
Y = projected core nose
U = Booster gap

I think Champion is confused. Or, maybe it's me that's confused. This info doesn't match their later info.

Maybe I should look for the Autolite equivalent.

[Joe L.]

Re: AC To Champion Plug Conversion

My 1967 chart shows:

43N = N-10Y
44N = N-5 or UN-12Y(OHV engines only)

N = 14mm, 3/4 reach
Y = projected core nose
U = Booster gap

Bill-----


N10Y, N5, and UN12Y are obsolete Champion part numbers. They are no longer manufactured or available.

[Joe C.]

Re: AC To Champion Plug Conversion

I think Champion is confused. Or, maybe it's me that's confused. This info doesn't match their later info.

Maybe I should look for the Autolite equivalent.

I hope this helps. It's the Champion master designator chart:

http://www.spark-plugs.co.uk/pages/technical/champion_symbol_code.htm

[Bill M.]

Re: AC To Champion Plug Conversion

N10Y, N5, and UN12Y are obsolete Champion part numbers. They are no longer manufactured or available.

Joe and Michael:

My 1967 chart shows the Champion N-4 conversion to AC as C41N and C42N. That's a dyno plug. Dunno.

I stocked up on RN12YCs for my L78 many years ago. They are still too cold for the way I drive it now (cruises). Next time they're on sale, I'll go RN14YC.

Bill

[John D.]

Re: AC To Champion Plug Conversion

Michael, I went to NAPA this morning parts and while there asked to see the AC/Champion book. No book to look at as it's all on the PC.

NAPA: AC 43 N or AC 44N= Champion N5C aka NAPA 120!! So I said to my friend at the counter. Can't be same number for both AC plugs. He said want to look on the screen and see for yourself?

So on the way home I thought that Champion only mades one plug now to fit both AC heat ranges.
By the way the N5C are readily available from NAPA. JD

[Joe L.]

Re: AC To Champion Plug Conversion

Michael, I went to NAPA this morning parts and while there asked to see the AC/Champion book. No book to look at as it's all on the PC.

NAPA: AC 43 N or AC 44N= Champion N5C aka NAPA 120!! So I said to my friend at the counter. Can't be same number for both AC plugs. He said want to look on the screen and see for yourself?

So on the way home I thought that Champion only mades one plug now to fit both AC heat ranges.
By the way the N5C are readily available from NAPA. JD

John-----


Yes, Champion often "consolidates" two AC part numbers into one Champion number. In fact, there's nothing really new about this practice. They even did it in the "old days".