Incoming Summer 2026
TMG-GWP40

Triplex Plunger Pressure Pump, Max. 4000 PSI, 5 GPM, 3400 RPM, 1" Hollow Shaft, Compatible Engine Power 9-15 HP, TMG-GWP40

TMG Industrial Triplex Plunger Pressure Pump, Max. 4000 PSI, 5 GPM, 3400 RPM, 1” Hollow Shaft, Compatible Engine Power 9-15 HP, TMG-GWP40
Incoming Summer 2026
TMG-GWP40
£297.00 - £297.00
£297.00
£297.00 - £297.00
£297.00
£297.00
+ SHIPPING
1-800-870-844

Product Description icon Product Description

The TMG-GWP40 is the replacement pump for most gas-powered high-pressure washers with 1" hollow shaft profile. All TMG Industrial high-pressure washer models (TMG-GWJ36 and TMG-GWS40) are equipped with this pump for optimal performance. This triplex pressure pump comes with a maximum of 4000 PSI and a flow rate of 5 GPM and 16 oz oil capacity.

Made with premium quality parts such as a brass manifold, stainless steel valves, a die-cast oil bath crankcase and a triplex plunger pump. The TMG-GWP40 also comes with a vented oil dipstick to prevent heat overflow and heat dissipation cooling fins to keep it working even after long, hard days - it’s built to get the job done.

Easy to set up with its 4-bolt engine mounting flange and compact, lightweight design. This pressure pump is handy, versatile and multi-use from one job or piece of equipment to the next.

Shipping Information icon Shipping Information

Shipping from Rowville,VIC
What happens after you place your order?

Warranty icon Warranty

We know that when you invest in equipment, you're counting on it to perform day in and day out. At TMG Industrial, that trust means everything to us. That’s why we include a 1-year Warranty with every product we sell—because you deserve confidence with every purchase.

Our warranty is there to make sure your equipment stays reliable across the seasons, covering any issues caused by manufacturing defects in materials or workmanship. From fieldwork to property maintenance, you can count on your TMG equipment to deliver.

More than just warranty coverage, we’re committed to supporting you throughout the life of your machine. Our customer service team is here to help, whether you need technical advice, troubleshooting, or parts support.

For full warranty terms, please see our warranty policy

Questions & Answers icon Questions & Answers