fuel pump

The pump pictured is the one I took off the engine. Are you saying the one pictured will adapt even though the hole pattern on the body of the pump is different?
 
52-559-01 is superseded to 52-559-03. The only hole pattern you have to worry about is how it is bolted to the engine. The replacement pumps are not serviceable, so they may look a bit different.
 
Mad Mackie I understand about blanking off the engine if using a electric pump. I planned on putting the old one back in place and plugging the inlet and outlet holes.
The 52 509 03 that is supposed to work will not match up with the number or hole spacing of the one pictured which is the one I took off the engine.
 
So thinking last night in bed, I realized you have the top half of the pump that you removed from the engine.

The rest is bolted onto the side and needs to come off.

Take all with you when buying the replacement.

Much better than trying to improvise and electric unit.
 
Brian there is nothing left on the engine to unbolt. There is just the hole for the plunger into the engine and four holes for the bolts. I currently have it covered with duct tape to keep dirt and moisture out. The pump in the pictures is the pump in its entirety.
 
Darn, then it must be some sort of special application for this engine.

It's going to be tough to find a fix.

Any pics of the engine and the area that this fits on?
 
From your pictures it looks to me the you did not remove the fuel pump from the engine, just split the pump in half. Your picture is that of the upper half which contains the diagram and inlet and outlet ports. Are you telling us that there are not two 1/4-20 bolts just below where you removed these parts? Look at pages 6.3 & 12.18 of this manual, which shows the type of pump we are talking about. I know it is not your engine, but shows the best pics of the pump.

http://www.mymowerparts.com/pdf/Koh...al-K91-K141-K161-K181-K241-K301-K321-K341.pdf
 
Rivets I think you are probably correct. I bet I missed the two bolts you are talking about, will check in the morning. I sure hope so. Saw a guy on Youtube sub the Kohler pump with a Briggs and Stratton vacuum pump. Have any of you tried doing that? It would certainly be less expensive. Thanks to everyone for all of the help I really appreciate it.
 
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