The General Pump YGR1125P31 with B31 1-1/8" engine shaft is a high-performance triplex plunger pump engineered for professional pressure washing and industrial cleaning applications. Built for reliability and efficiency, this pump delivers consistent performance in demanding conditions. Featuring a precision-machined brass manifold, hardened stainless steel plungers, and an oversized connecting rod, it ensures extended pump life and reduced maintenance needs.

Specifications:

• Pump Model: YGR1125P31 (B31 Shaft)

• Shaft Size: 1-1/8" hollow shaft (B31 specification)

• Max Flow Rate: 4.0 GPM

• Max Pressure: 3500 PSI

• RPM: 3400 RPM

• Plunger Material: Solid ceramic

• Manifold Material: Forged brass

• Oil Capacity: 11.8 oz. (use non-detergent pump oil)

• Inlet Port: 1/2" NPT-F

• Outlet Port: 3/8" NPT-F

• Mounting: Direct drive to gas engine with 1-1/8" shaft

Key Features:

• Genuine General Pump OEM product

• Brass manifold resists corrosion and ensures durability

• Stainless steel and ceramic plunger design for maximum wear resistance

• Oversized bearings for smooth, long-lasting operation

• Ideal for professional pressure washer builds and replacements