Pressure Washer Pump 3000 PSI 2.5 GPM Simpson MSH3125-S Replacement – Horizontal Shaft 3/4 Inch – 4 Bolt Pattern

Replace your worn-out pressure washer pump with this 3000 PSI, 2.5 GPM horizontal shaft pump designed as a direct replacement for Simpson MSH3125 and MSH3125-S models. This pump features a 3/4-inch shaft diameter and a 4-bolt pattern with 2 5/8-inch center-to-center distance between outer holes for compatibility. Built for durability, it handles water temperatures up to 140°F and connects easily with a standard garden hose inlet. The outlet tube connection is 22mm male. Includes a keyway, hose, chemical injector, unloader, thermal release, and outlet tube as shown. This pump requires a minimum of 6HP to achieve the stated pressure. The pump head is not reversible, but the pump can be mounted in various directions for hose accessibility. Always operate within the pump's PSI rating to prevent damage and ensure safe operation. Refer to images for detailed specifications; keyway, thermal release, and unloader are included. This pump is designed to restore your pressure washer’s performance. Compatible with models requiring a horizontal pump configuration. Confirm compatibility with your unit's model, sub-model, specifications, type number, code, serial number, year, and engine horsepower prior to purchase.