FLtractor 38 #1 Posted April 19 (edited) Afternoon, Looking to finish up the first round of general maintenance to get the tractor known what is new.. on a fresh start basis… on my new to me 1966 856 single cylinder Kohler 8 Hp. Tractor is running and starting good. But no idea the last time the current plug was changed. Would this be the best quality replacement.. is there a brand or model that is universally used amongst Wheelhorse Garden Tractor owners? Edited April 19 by FLtractor Share this post Link to post Share on other sites
ebinmaine 71,038 #2 Posted April 19 A few things to note: A. Please try not to use anything that states "replacement for". EVER. They usually are not.... B. That price is REALLY HIGH. C. There are several good name brands like Bosch NGK or Champion that work well. My experience shows me that generic no name plugs are poor, at best. Champion number H10C would work. 1 Share this post Link to post Share on other sites
squonk 42,789 #3 Posted April 19 Actually, H10C is a big block plug. How much difference that makes? Who knows? Use an Autolite 295 4 Share this post Link to post Share on other sites
pfrederi 18,383 #4 Posted April 19 Autollite 295 is what I use also (I do not like the Champion J8c which also works) 2 Share this post Link to post Share on other sites
Retired Wrencher 5,658 #5 Posted April 20 (edited) 14 hours ago, ebinmaine said: A few things to note: A. Please try not to use anything that states "replacement for". EVER. They usually are not.... B. That price is REALLY HIGH. C. There are several good name brands like Bosch NGK or Champion that work well. My experience shows me that generic no name plugs are poor, at best. Champion number H10C would work. I agree with Eric. But on smaller engines I just buy the cheapies at Walmart at $2.00 apiece. On the 10hp and up I use what Eric said. Edited April 20 by Retired Wrencher 1 Share this post Link to post Share on other sites
adsm08 2,769 #6 Posted April 20 12 hours ago, Retired Wrencher said: I agree with Eric. But on smaller engines I just buy the cheapies at Walmart at $2.00 apiece. On the 10hp and up I use what Eric said. On any single-cylinder engine the ignition system is one of the two most important things. There is no difference between a misfire and a no start when there's only one hole. And cheap plugs on a pull-start engine are the worst, especially a 2-stroke. I'd say the smaller the engine the more important a quality spark plug is. 1 1 Share this post Link to post Share on other sites
Retired Wrencher 5,658 #7 Posted April 23 On 4/19/2025 at 3:38 PM, squonk said: Actually, H10C is a big block plug. How much difference that makes? Who knows? Use an Autolite 295 I do you those as well Mike. Wally World under $2. They work ok for the money. Share this post Link to post Share on other sites
HyperPete 607 #8 Posted April 23 On 4/19/2025 at 3:01 PM, ebinmaine said: A few things to note: A. Please try not to use anything that states "replacement for". EVER. They usually are not.... B. That price is REALLY HIGH. C. There are several good name brands like Bosch NGK or Champion that work well. My experience shows me that generic no name plugs are poor, at best. Champion number H10C would work. Addendum: Amazon name-brand parts are frequently (poor quality) counterfeits. Pay a bit more & buy locally. 1 Share this post Link to post Share on other sites
FLtractor 38 #9 Posted May 2 On 4/19/2025 at 4:21 PM, pfrederi said: Autollite 295 is what I use also (I do not like the Champion J8c which also works) The Autolite 295.. what size Spark plug socket does that use? Share this post Link to post Share on other sites
adsm08 2,769 #11 Posted May 2 5 hours ago, FLtractor said: The Autolite 295.. what size Spark plug socket does that use? Pliers 1 1 Share this post Link to post Share on other sites
FLtractor 38 #12 Posted May 3 Thank you all for the helpful info Share this post Link to post Share on other sites
