Bill725 Posted July 29, 2020 Share Posted July 29, 2020 I did not know there were (2) different FDT hydraulic lift pump drive pulleys. All the IPLs, 990339 square tank, 990367 & 990468 round tanks, I have only show P/N, 157231. Unless, the wider pulley was installed on the 12HP models from the factory and is P/N 157484. 1 Quote Link to comment Share on other sites More sharing options...
Tom45 Posted July 30, 2020 Share Posted July 30, 2020 The parts manual for the B110 shows different part numbers for the 10 hp engine and 12 hp engine for the pulley. The 12 hp is 1.00 thick. Is the thickness the only difference? Quote Link to comment Share on other sites More sharing options...
Bill725 Posted July 31, 2020 Author Share Posted July 31, 2020 1 hour ago, Tom45 said: The parts manual for the B110 shows different part numbers for the 10 hp engine and 12 hp engine for the pulley. The 12 hp is 1.00 thick. Is the thickness the only difference? Yes. The 10HP is 1/2" thick and the 12HP is 1" thick. I used 1/2" long driveshaft spacers to space the pulley away for the flywheel when installing a 16HP. I think the 1/2" pulley is Simplicity P/N 157231. Is the 1" pulley P/N 157484? Quote Link to comment Share on other sites More sharing options...
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