Best Place to Get New Piston & Rod?

[Zeek 2,286]

My 12HP K301 is at a friend's shop getting a refresher kit installed. By that I mean this http://www.ebay.com/itm/ENGINE-REFRESH-KIT-for-KOHLER-K181-K241-K301-K321-/120962716479?pt=LH_DefaultDomain_0&hash=item1c29f0933f as well as getting the valves cleaned and the seats redone and a carb kit.

The guy said the piston and rod should probably be replaced.

Piston - he said there is scoring around the edges that became evident when the carbon was removed (ie - may have run a little dry at one point)

Rod - said that although it is still within specs, some of the aluminum has been worn off, which from what he says I believe would be where it rotates on the crank.

The guy is not charging me to do it since I know him, so it's not an up-sell issue. He says if I elect not to replace, it will run fine and not smoke, but he wouldn't recommend it since it's already apart as far as it is.

1. Where is the best place to get a new piston and rod?
   
2. Should I be concerned enough to replace them?
   

This is a trailer queen, so it doesn't need to be Kohler, Stens is fine.

[rmaynard 16,343]

The scoring on the edge of the piston is probably adjacent to the spark plug. It is from pre-ignition (timing slightly off), and is not a problem. However, I might have a little concern about some of the aluminum being worn off the rod.

Having said that, if everything is still within specs, I don't know that I would replace anything. However, if you decide to replace, I get my pistons, rings and rods from Maple Grove Distributors. If you want to place an order, I have an account and can get them for you. They will probably by less expensive than Stens, and quite a bit less than Kohler.

[Zeek 2,286]

Bob, would it be too much trouble to get me a price on them first so I have an idea what I'm looking at?

Thank for the help.

[Lars 526]

The same guy u bought that kit of also have pistons and rod..

never tryed it but know there are members that have tried it..

[rmaynard 16,343]

Bob, would it be too much trouble to get me a price on them first so I have an idea what I'm looking at?

Thank for the help.

Prices are based on size. STD, .010, .020, and .030 over for pistons, STD, .010, and .020 under for rods. Pistons come with rings.

[Zeek 2,286]

Bob, would it be too much trouble to get me a price on them first so I have an idea what I'm looking at?

Thank for the help.

Prices are based on size. STD, .010, .020, and .030 over for pistons, STD, .010, and .020 under for rods. Pistons come with rings.

All standard

[rmaynard 16,343]

PM sent

[Zeek 2,286]

The same guy u bought that kit of also have pistons and rod..

never tryed it but know there are members that have tried it..

Thanks. I'm gonna see what Bob comes up with and if that doesn't work I'll try that.