WOJET High-Flow Triplex Plunger Pressure Washer Pump 4400PSI 4.0GPM 1"Shaft For Sale

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WOJET High-Flow Triplex Plunger Pressure Washer Pump 4400PSI 4.0GPM 1"ShaftDescription Power Source Engine Powered Flow Rate 4 gpm Horsepower 15 hp Item Highlight Self-Priming Horizontal Replacement Pressure Washer Pump Rebuild Kit for Honda,Dewalt,Simpson,Generac,Unloader for MRO,9-15HP Color Blue Product Style Fits 3600 - 4400 PSI Power Washer Item Dimensions L x W x H 11.4"L x 9"W x 7.5"H Item Weight 17.5 pounds Brand Name WOJET Model Number PA3030 Number of Packs 1 Manufacturer WOJET Number of Items 1 Specific Uses For Product Power washing Included Components 1 x Pump, 1 x Shaft key, 1 x Siphon hoser with filter, 4 x Mounting bolts Manufacturer Part Number PA3030 Brand WOJET Style Fits 3600 - 4400 PSI Power Washer Product Dimensions 11.4"L x 9"W x 7.5"H Maximum Flow Rate 4 gpm

Product description Built for 9-15 HP Engines. WOJET HIGH FLOW TRIPLEX PRO: INDUSTRIAL-GRADE 4.0GPM

The WOJET Triplex Pump delivers 4400 PSI and 4.0 GPM for building a custom rig, trailer, or direct pump replacement. Engineered for high efficiency, it minimizes engine load while maximizing output, perfectly matching 9–15 HP engines. Easily installs on horizontal-shaft models with a 1-inch shaft.

• Is this pump compatible with my Honda GX340 engine? Which nozzle orifice is recommended?

  Yes. This pump is designed for horizontal-shaft engines like the Honda GX270, GX340, and GX390, which fall within the 9 to 15 HP (250-420 cc) class and feature a 1-inch shaft.

  We recommend a nozzle with a 4.0 orifice.

• What’s the maintenance cycle for pump gaskets & valves? Any repair kits available?

  Replace internal pump gaskets and valve assemblies after 300 working hours to prevent pressure loss and leaks.Our matching Seal Repair Kit for this pump includes complete water seals, O-rings and check valves.

• Is this pump self-priming? What is the suction ratio of the chemical injector? Does it include anti-seize?

  1) Yes, this pump is self-priming. Always use short, direct suction lines and avoid air leaks. 2) The dilution ratio of this injector is 17:1. 3) And yes, the pump is equipped with anti-seize for easy installing.

• Why does my pump have water stains upon arrival? Is there a quality issue?

  No quality issues—totally normal! Every unit undergoes 100% pre-ship water testing to ensure zero leakage & top quality. Stains = proof of strict inspections—reliable & ready to use!

• What is the core competitiveness of the HIGH FLOW TRIPLEX PRO pump, and how is it different from the other two models?

  This pump is industrial-grade (4400PSI/4.0GPM/triplex plunger), ensuring heavy-duty continuous work than regular pumps. Vs TRIPLEXT PRO: Larger flow/shaft, higher pressure, longer continuous work. Top choice for professional/industrial users.

INSTALL WITHIN 10 MINUTES | SEE VIDEO GUIDE

• Remove the four bolts and detach the old pump from the engine.

• Insert the shaft key into the keyway and apply the provided anti-seize.

• Align the keyways and slide the pump onto the engine.

• Secure with four bolts, tightening them evenly.

KEY FEATURES Brass Inlet & Outlet

• 3/4" Garden Hose Inlet
• 3/8" Quick Connect Outlet

Thermal Relief

• Release hot water & let in cooler water quickly
• Prevent overheating, extend the life of pump

Product Content

• 1 x Shaft key, 1 x Anti-seize, 1 x Siphon hoser with filter, 1 x Oil level gauge, 4 x Bolts, 1 x Instruction

Product Support

• We stand behind its performance. If you run into any issues, we'll quickly fix it.
• Spare parts are available.

TECHNICAL SPECIFICATIONS Model Number PA3030 HIGH FLOW TRIPLEX PRO Max Pressure 4400 PSI Max Flow Rate 4.0 GPM Engine Size Required 9-15 HP Pump Type Triplex Plunger Drive Type Direct Rated RPM 3400 Engine Type Horizontal Oil Viscosity SAE 75W90 Shaft 1" Hollow Shaft Self-Priming Yes Product Support We stand behind its performance. If you run into any issues, we'll quickly fix it. NOTICE Notice water stains on your pump? Completely normal—no performance issues! Every unit undergoes 100% pre-shipment water testing to ensure zero leakage and top-tier quality. Residual stains are solid proof your pump passed our strict inspections—reliable and ready to use right away! Attention For cold water only. Use For heavy-duty commercial/industrial use: professional pressure washing, construction site cleaning, fleet washing, industrial facility cleaning. WORK TOGETHER WITH THE PUMP

1. POWER WASHING LARGE DRIVEWAY
2. TURN YOUR WASHER INTO A SANDBLASTER
3. RATED FOR 4500 PSI
4. KEEP YOUR HOSES ORGANIZED
5. SIMPLE ON AND OFF IN SECONDS
6. FITS Honda GX160, GX200, GC160, GC190

• INDUSTRIAL-GRADE HIGH-FLOW TRIPLEX PRO: This WOJET Pressure Washer pump kit is designed for 9-15 HP (250-420 cc) horizontal-shaft engines with a 1" shaft, offering a replacement for gas models from ▶Honda GX270, GX340, GX390 ▶Simpson PS60869, PS4240, ALH4240, ALH3425, ALWB60825, ALH4440 ▶DEWALT DXPW4035, DXPW61299, DXPW61377 ▶AAA 90039, 90038, 90034, 90056 ▶Westinghouse WPX4400 ▶Kohler CH395, CH440. Not sure if it fits your model? Please send your brand, model number, PSI and GPM, we’ll check for you!
• RESTORE PEAK POWER: Breathe new life into your washer. Engineered for heavy-duty use, this 4400 PSI, 4.0 GPM water pump for pressure washer restores full power and enhances reliability. It provides the force to blast away deep-seated grime and oil stains from driveways, the pressure to rinse a two-story house with ease, and consistent flow for cleaning large equipment and prepping big surfaces for painting. This is how you regain your machine to original power and extend its service life.
• INTEGRATED UNLOADER: This integrated unloader valve is the power washer pump’s main defense against overheating and damage. When you release the trigger, the valve instantly opens to relieve pressure. Instead of stalling, incoming water flows continuously through the manifold, carrying away heat. Unlike older designs where water stops and temperatures soar, our system provides constant cooling. This “cool-down cycle” reduces thermal stress, protects critical components, and extends pump life.
• SELF-PRIMING FOR GREATER FLEXIBILITY: Unlike most pumps, this model includes a unique self-priming function, giving you the freedom to draw water from a variety of sources. Whether it’s a bucket, pool, or tank, this replacement pressure washer pump happily pulls water, making it ideal for areas without a direct faucet connection. Perfect for mobile tasks or jobs at construction sites, its versatility ensures you can tackle tough jobs in remote locations or expansive outdoor spaces.
• THE LONG-LASTING PRESSURE WASHER PUMP: Engineered for longevity and performance, it features an adjustable unloader knob, corrosion-resistant brass pump head with polished ceramic pistons, forged brass manifold, and powder-coated blue aluminum crankcase. Pre-sealed and oil-filled for easy maintenance, it connects via 3/8" quick-connect outlet and 3/4" garden hose inlet. Includes siphon tube, mounting bolts, and shaft key. We stand behind its performance. If you run into issues, we’ll fix it.

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