Gas Pressure Washer - Cold Water - 4200 PSI - 4 GPM - Aluminum Frame - Honda Engine. Honda GX390 Engine - 1.6 Fuel Tank - CAT Triplex Plunger Pump - Cold Water Operation - 4,200 PSI - 4 GPM - Aluminum Frame. Honda GX390 Engine provides an easy start, smooth, and high output operation. Dimensions (L x W x H). The item "Gas Pressure Washer Cold Water 4200 PSI 4 GPM Aluminum Frame Honda Eng" is in sale since Thursday, August 15, 2019.This item is in the category "Business & Industrial\Cleaning & Janitorial Supplies\Pressure Washers, Parts & Accessories\Pressure Washer Parts & Accessories\Other Pressure Washer Parts & Accessories". The seller is "pacifictundra" and is located in CA, MO, & VT. This item can be shipped worldwide.