The Stealth Legion Series STP8040 marks the launch of Stealth's professional pump lineup, delivering the proven performance of one of the most respected triplex pressure washer pump platforms in the industry. Manufactured in Italy and built on the trusted and proven General Pump TSF2021 platform, the STP8040 combines commercial-grade durability, long-term serviceability, and industry-leading parts availability into a pump designed for contractors who depend on their equipment every day.

Producing up to 8.5 GPM at 3600 PSI, the STP8040 is ideally suited for pressure washing trailers, skid units, fleet washing systems, industrial cleaning equipment, hydrostatic testing systems, wet sandblasting setups, and other demanding applications requiring consistent high-volume performance.

Featuring a forged brass manifold, forged crankshaft, oversized roller bearings, ceramic plungers, and advanced seal technology, the STP8040 is engineered for long service life in high-hour commercial environments where downtime costs money.

Built for long-term serviceability, the STP8040 uses a proven commercial platform supported by readily available replacement-parts. Its service components are interchangeable with General Pump TSF2021 repair parts, giving contractors familiar maintenance procedures and dependable access to seals, valves, plungers, and other replacement components.

Whether you're replacing a worn-out pump, building a new pressure washing skid, or upgrading a commercial cleaning system, the Stealth Legion Series STP8040 delivers the proven performance professionals trust with the support and product ecosystem of the Stealth brand.

Introducing the Legion Series

The Legion Series represents Stealth's growing family of professional-grade pumps built around proven commercial platforms from established global manufacturers. Designed for contractors who demand reliability, rebuildability, and long-term support, Legion pumps combine field-proven performance with the customer service and equipment ecosystem professionals expect from Stealth.

The STP8040 launches the Legion Series as a professional high-flow triplex pump platform built for pressure washing, industrial cleaning, fluid transfer, and demanding commercial applications where equipment performance matters.

Frequently Asked Questions

What makes the STP8040 different?

The STP8040 is part of Stealth's Legion Series, a growing family of professional-grade commercial pumps supported within the Stealth equipment ecosystem. Manufactured in Italy and built for commercial-duty applications, the STP8040 combines proven triplex pump performance, broad service-part availability, and long-term support through Stealth.

Are TSF2021 repair parts compatible with the STP8040?

Yes. Seal kits, valve kits, plungers, manifolds, service kits, and other replacement components designed for the TSF2021 are fully compatible with the STP8040.

Is this pump designed for belt-drive systems?

Yes. The STP8040 is a solid-shaft triplex plunger pump designed specifically for commercial belt-drive pressure washer systems.

What applications is the STP8040 commonly used for?

The STP8040 is commonly used on pressure washing trailers, skid units, fleet washing systems, industrial cleaning equipment, hydrostatic testing systems, wet sandblasting equipment, and other commercial cleaning applications.

What is the maximum flow rate?

The STP8040 is rated for up to 8.5 GPM at 1750 RPM or 7.0 GPM at 1450 RPM.

What is the maximum operating pressure?

The STP8040 is rated for a maximum discharge pressure of 3600 PSI.

What oil should be used in the STP8040?

The pump is designed to use General Pump Series 100 oil or equivalent oil meeting manufacturer requirements.

Is this pump rebuildable?

Yes. The STP8040 is designed for long-term serviceability and can be rebuilt.

Recommended Applications

Pressure Washing Applications

• Pressure Washing Trailer Systems
• Pressure Washing Skid Units
• Commercial Property Maintenance
• Concrete Cleaning
• Sidewalk Cleaning
• Driveway Cleaning
• Building Exterior Cleaning
• Surface Preparation
• Paint Removal
• Wet Sandblasting

Vehicle & Fleet Washing

• Fleet Washing
• Truck Washing
• Heavy Equipment Cleaning
• Mobile Vehicle Wash Systems
• Equipment Maintenance Cleaning

Industrial Cleaning Applications

• Industrial Facility Cleaning
• Manufacturing Facility Cleaning
• In-Plant Cleaning Systems
• General Industrial Washdown
• Multiple Gun Wash Stations

Specialty Applications

• Hydrostatic Testing
• Hydraulic Press Operations
• Process Water Applications
• Agricultural Cleaning Systems
• Food Processing Sanitation Systems
• Poultry Processing Applications
• Misting & Fogging Systems
• Cooling Tower Application

Features

Genuine Italian Manufacturing

Manufactured in Italy on a proven commercial triplex pump platform, the STP8040 delivers the precision, durability, and long-term serviceability professional contractors expect from high-hour equipment.

Flexible Performance Configuration

Designed to operate at multiple pump speeds, the STP8040 delivers up to 8.5 GPM at 1750 RPM or 7.0 GPM at 1450 RPM. This flexibility allows equipment builders and contractors to configure systems around different engine, motor, and drive package requirements while maintaining reliable commercial-duty performance.

Forged Brass Manifold

Heavy-duty forged brass manifold provides exceptional durability, rebuildability, corrosion resistance, and long-term reliability in demanding environments.

Forged Crankshaft

Designed to withstand heavy commercial workloads while increasing load capacity and reducing fatigue over thousands of operating hours.

White Ceramic Plungers

Premium 99% alumina ceramic plungers offer exceptional wear resistance, thermal shock resistance, and long service life.

Oversized Roller Bearings

Large cylindrical roller bearings provide increased load capacity, smoother operation, and extended pump longevity.

Advanced Seal Technology

Improved high-pressure and low-pressure seals help maximize service intervals while reducing maintenance requirements and operating costs.

Fully Serviceable Design

Built for long-term rebuildability with widely available replacement parts, service kits, valve kits, and seal kits.

Complete TSF2021 Parts Compatibility

Uses the same repair components trusted by thousands of contractors operating TSF2021 pumps worldwide.

Solid Shaft Belt-Drive Configuration

Designed for professional belt-drive pressure washer systems requiring durability, smooth operation, and reduced operating temperatures.

Anodized Crankcase

Provides additional protection against corrosion and environmental exposure while contributing to overall pump durability.

Contractor-Proven Commercial Performance

Designed for high-hour operation across pressure washing, industrial cleaning, vehicle washing, hydrostatic testing, and process applications.

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