YAMATIC 3/4" Shaft Horizontal Pressure Washer Pump — 3400 PSI 2.5 GPM, Double-Seal, Thermal Relief

The YAMATIC 3/4" Shaft Horizontal Pressure Washer Pump delivers commercial-level 3400 PSI and 2.5 GPM performance in a compact, residential-compatible unit designed for longer run time and easy replacement.

This high-pressure replacement pump is engineered to upgrade small gas-powered pressure washers (180–225 cc / roughly 6.5–7 hp engines) with greater cleaning force and improved longevity. Built with a reinforced double-seal arrangement, thermal relief protection, and an adjustable unloader valve, the pump balances power and protection to handle sidewalks, fences, driveways, vehicles, decks, and more. It ships pre-filled with long-life oil and follows common USA-standard mounting so installation is straightforward for most hobbyist and light-professional systems.

How does this pump increase cleaning power for my pressure washer?

The YAMATIC pump raises output to 3400 PSI at 2.5 GPM, delivering stronger spray force and faster soil removal than many stock residential pumps. That extra pressure and flow shortens cleaning time and helps remove stubborn dirt, mildew, and grime when used with correct nozzles and detergents.

• 3400 PSI peak pressure for deeper cleaning intensity
• 2.5 GPM flow rate to improve rinsing and cycle speed
• Compatible with 3/4" shaft horizontal engines common on small gas washers

What features protect the pump and prolong service life?

This model incorporates a high-performance double-seal system and upgraded piston surfaces and bearings to resist wear. A thermal relief valve prevents overheating during bypass operation, and the adjustable unloader lets you match pressure to your engine to reduce stress under varying loads.

• Double-seal design to minimize leaks and contamination
• Thermal relief valve (TRV) guards against heat build-up in bypass
• Durable piston and bearing surfaces for extended runtime

Will this pump fit my existing pressure washer and how easy is installation?

YAMATIC uses a USA-standard mounting pattern and a 3/4" horizontal keyed shaft, making it compatible with many gas pressure washers from 180–225 cc engines. It ships pre-filled with oil, so you can install and run after following the straightforward mounting and connection steps; basic mechanical skill and standard tools are sufficient.

• Mounting matches common residential gas washer frames
• Pre-filled oil reduces initial maintenance steps
• Simple installation—refer to video/guide for step-by-step setup

Which brands and models are commonly compatible with this replacement pump?

This replacement pump is designed to work with a wide set of consumer pressure washer brands that use a 3/4" horizontal shaft. Check your engine size and shaft type to confirm fit; contact YAMATIC support for model-specific questions or after-sales help.

• Compatible with Honda small engines (GC190, GC135, GX140, GX160; GC160 with 3/4" keyway)
• Common replacements for Simpson, Homelite, Karcher, Troy-Bilt, and similar models
• Fits USA-standard mounts on 180–225 cc (6.5–7 hp) small gas engines

Who is this for? The YAMATIC 3/4" shaft horizontal pump is intended for homeowners, rental operations, and small contractors who want a stronger, more durable replacement pump for light-duty to medium cleaning tasks. It's best for users comfortable with basic mechanical installation who need higher pressure than stock pumps provide and prefer a unit designed for longer run times. If you store your equipment long-term, drain the pump and use a pump guardian product before storage to protect seals and prevent freeze or corrosion. For fitment questions or service needs, consult YAMATIC support to confirm compatibility with your exact model and engine.