I just purchased a NEW comet pump from PRESSURE-WASHER-PARTS.COM for 268.35 with the feet and shipping to my house. Switch over pulley and you should be good to go. They may have Cat but more$. Mine puts out 2,000 PSI at 4 gallons per minute.
P.S. Comet model LWS4022S 4 gallon per minute 2000psi $251,
Comet model LWS3025s 3.2 gallon per minute 2500psi $235. (This is the model used on
hydramaster 3.2 and 4.0, and Possibly the Boxer.)
PSS Jim Eckmans advice is probably best for the rebuild and the heater too. :wink: