General Pump TSF2021 Triplex Plunger Pump | 8.5 GPM @ 3600 PSI | 24mm Solid Shaft

The General Pump TSF2021 is a heavy-duty, industrial-grade workhorse from GP's legendary TSF Series (Generation II). Operating at a smooth, ultra-low 1,450 RPM, this pump is designed for belt-driven systems or external gearbox couplings mated to high-horsepower gas or diesel engines.

By reducing operating RPM, it runs significantly cooler, vibrates less, and drastically extends the life of internal seals and packings compared to direct-drive setups. It features an oversized nickel-plated forged brass manifold, beefed-up connecting rods, large plunger guide sleeves, and dual-sided oil sight glasses for effortless maintenance monitoring.

Specifications

• Flow Rate: 8.5 GPM
• Max Pressure: 3,600 PSI
• Shaft: 24mm Solid Shaft (requires pulley or gearbox system)
• Inlet Port: 3/4" FPT
• Outlet Port: 3/8" FPT
• Crankcase Oil Capacity: 40.6 oz (GP Series 100 non-detergent 30W)
• Dry Weight: 40.0 lbs
• Dimensions: 13.0" x 9.8" x 6.9"
• SKU: TSF2021

Best Use Case

Heavy-duty, continuous-use commercial pressure washing trailers, hydro-jetting applications, multi-gun wash bays, and industrial cleaning skids.

⚠️ Plumbing Warning

Due to the high GPM flow volume, this pump must be gravity-fed from a water buffer tank through a 3/4" or 1" supply line. Feeding directly from a standard garden hose spigot will cause cavitation, destroying the ceramic plungers and internal check valves. Check oil levels via the sight glass before every single shift.