CAT Pumps model 66DX30G1I is a common pump found on many upper level pressure washers. It is a direct drive pump that mounts up right to a motor with a 1" shaft and operates at 3.0 gpm and up to 4000 psi. The 66DX35G1I and 66DX40G1I have the same specifications, but operate at 3.5 GPM and 4.0 GPM respectively.
The parts listed below are genuine CAT parts, direct from the manufacturer. If you don't see the part you are looking for, please give us a call. We'll be happy to talk with you to find out what you need.
Need help repairing your pump? You came to the right place, head over to the 66DX page for details.