Correct Plugs For A D180

[Austin860 82]

What spark plugs should I have in my 18hp kholer? It's off a d180

[Marv 966]

Champion H10.

Marvin

[gwest_ca-(File Mod) 11,243]

I have been looking for this application but see conflicting part numbers. The original Kohler number is 25 132 10S but it is a poor idea to use a conversion list to find a replacement. It will have the same physical dimensions but the heat range can be off by a mile.

 

Finally found a 18hp twin in an old Champion book that lists their reccommended plug as RV17YC for Wheel Horse gapped at .025". 14mm, 5/8`hex, .460`reach with a tapered seat so uses no gasket.

 

They do list the 18hp V-Twin as using RC12YC. 14mm, 3/8`reach, 13/16`hex and uses a gasket.

 

I did come across the H10  for this model but now believe it is not correct 14mm, 7/16`reach, 13/16`hex and uses a gasket.

 

Whatever make of plug you get use their application charts to get the correct one.

 

Garry

[Jeff-C175 7,203]

Googling the Kohler part number that Garry posted comes up with this:

 

 

http://www.rcpw.com/kohler-engine-parts/genuine/25%20132%2010S.html

 

Which is showing the H10C or RH10C (resistor) as aftermarket replacement.

 

BUT, this plug appears to be for the K series SINGLES.

 

Is this an 18 HP TWIN?  What is the engine model?

 

The KT twins use the RV17YC plug...

Edited August 14, 2013 by Jeffpicks

[Jeff-C175 7,203]

That engine is a K482, correct?

 

http://www.kohlerengines.com/onlinecatalog/pdf/en_607.pdf

 

Kohler manual for that engine lists  235040-S  as plug part number.

 

Putting this number into rcpw.com crosses back to the 25 132 10-S number that crosses to the H10 in the previous post.

[pfrederi 18,333]

Autolite shows 216 for  K482 motor  (That crossed to H10) champion)