TT1540GBF General Pump – Series 51, 4.0 GPM @ 1500 PSI, 3400 RPM

Part Number: TT1540GBF
Category: Pressure Washer Pumps
Type: Direct-Drive Plunger Pump – TT1540GBF, 4.0 GPM @ 1500 PSI (3400 RPM, 3/4″ Shaft)

The TT1540GBF Pressure Washer Pump from General Pump’s Series 51 line is a compact, direct-drive replacement engineered for light-duty commercial and residential pressure washer systems that prioritize high flow at moderate pressure. Delivering 4.0 GPM at 1500 PSI and operating at 3400 RPM, this pump is ideal for applications such as soft washing, rinsing, and general cleaning where volume matters more than extreme cutting power.

Built with durable plunger-style construction and a 3/4″ shaft, the TT1540GBF provides smoother operation and longer service life than axial cam pumps commonly found in entry-level machines. Its lightweight, space-efficient design makes it an excellent OEM-style replacement for restoring performance on compatible small-engine pressure washers.

Product Specifications

• Pump Model: TT1540GBF

• Series: General Pump Series 51

• Pump Type: Plunger, Direct Drive

• Flow Rate: 4.0 GPM

• Max Pressure: 1500 PSI

• Rated Speed: 3400 RPM

• Shaft Size: 3/4″

• Bore Diameter: 15 mm

• Stroke: 9.4 mm

• Weight: 11.4 lb

• Condition: New

Features & Benefits

• High-flow 4.0 GPM output for fast rinsing and soft-wash applications

• Compact direct-drive design for quick, drop-in replacement

• Plunger-style construction for smoother performance than axial pumps

• 3/4″ shaft for broad small-engine compatibility

• Lightweight and space-efficient

• Reliable OEM-style replacement for Series 51 systems

Applications

• Light-duty gas pressure washers

• Soft wash and rinse-focused cleaning setups

• Residential and prosumer equipment

• OEM replacement for General Pump Series 51 platforms

• Equipment repair and refurbishment

Important Notes

• Verify shaft size (3/4″), RPM (3400), and mounting compatibility before ordering

• Designed for direct-drive configurations

• Final operating PSI and GPM depend on engine output and overall system configuration