Spark Plugs WD45

D beatty · Apr 21, 2016

What is the correct plug for the WD45? I took one out and all it says is Delco on spark plug and this spark plug was only about 2" in over all length. It looked like a plug that I use in a push lawn mower.

old · Apr 21, 2016

I have started using the NGK brand of plug in my tractors and have found there better then any of the other brands now days The number for them is NGK3112 same plug I also use in my Ford tractors. Put a set of them in my WD45 this past summer and boy what a difference in how it runs

Butch(OH) · Apr 22, 2016

Ac 45 was the OEM plug but it no longer made. Autolite 295 USED to be a decent replacement but when production went to China quality went to crap with it. Some people get along with J-8 Champions but I dont have much luck with them at all. We have both A-C tractors and quite a few other old pieces around the place that take that same plug and after trying about everything currently made I have taken to watching Ebay for old stock A-C 45 plugs. If you keep watching you can pick up new old stock for around $4 per plug but some are asking $8.
I find the extra bit of money spent for NOS AC45 is VERY well spent, they always work, not so with any current replacements, again in my experience.

D beatty · Apr 22, 2016

I found AC R45 plugs at NAPA and seems to run fine. The plugs I took out of it were AC LM49 and I have never seen a plug like it.

mdm1 · Apr 26, 2016

Old do you use the same number for a C?

Spark Plugs WD45

D beatty

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old

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Butch(OH)

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D beatty

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mdm1

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