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

Original price $499.00
Original price $499.00 - Original price $499.00
Original price $499.00
Current price $399.00
$399.00 - $399.00
Current price $399.00
Save $100.00 Save $100.00 EST. 4-8 WEEKS DELIVERY
+ SHIPPING ( Get FREE SHIPPING on orders over $1000 )

20.0 lb
13 x 12 x 10 inches
More Shipping Info
  • Compatible with TMG-GWJ36 and TMG-GWS40
  • Durable triplex plunger pump often used for high pressure fluid output
  • Die-cast oil bath crankcase is built for long term lubrication & minimal wear
  • Thermo pump protector & direct drive power transmission
  • 4-bolt engine mounting flange for easy attachment to your equipment


  • Replacement pump for TMG-GWJ36 and TMG-GWS40, as well as most pressure washers with 1” gas engine flange in the fields
  • This durable triplex plunger pump is often used for pumping out fluids at high pressures due to its robust, heavy-duty design
  • Die-cast oil bath crankcase is built for long term lubrication and minimal wear to the attached equipment so you get the best performance from your pump
  • Constructed with a brass manifold, stainless steel valves and a sight glass for you to check your oil levels before/after operation
  • Thermo pump protector and direct drive power transmission from the gas engine or electric motor for maximum power and efficiency
  • Vented oil dipstick prevents heat overflow and heat dissipation cooling fins to keep the pump working even after a grueling long day
  • 4-bolt engine mounting flange makes this pump easy to attach/replace on your equipment so you can quickly get back to work with little down time


  • Match engine power: 9-15 HP
  • Max. work pressure: 4000 PSI
  • Max. flow rate: 5 GPM
  • Engine speed: 3400 RPM
  • Hollow shaft: 1”
  • Pump plunger bore: 15 mm
  • Pump stroke: 10 mm
  • Inlet: ¾” NH thread
  • Outlet: ⅜” quick connect
  • Oil plugs: 2
  • Crankcase oil capacity: 16 oz

Shipping Information

The order will ship FREE from one of our main warehouses in North America. Under normal circumstances it will take us 2 to 3 business days to process the order and ship it. It will take up to 10 to 15 business days for the order to get to you based on where you are located and how accessible the location is.

  • This product is packed in one shipping box
  • Shipping dimension: 13” x 12” x 10” (L x W x H)
  • Shipping weight: 20 lb
This order will ship from TMG Industrial warehouse in Seattle, WA. 
What happens after you place your order?
TMG Industrial Triplex Plunger Pressure Pump, Max. 4000 PSI, 5 GPM, 3400 RPM, 1” Hollow Shaft, Compatible Engine Power 9-15 HP, TMG-GWP40-shipping-info-image

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.


We're here to support you. This product is backed with our 1-year manufacturer warranty. Customer support and spare parts are offered from our headquarters located in Richmond, BC.

More Information
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In-Store Pickup orders are ready by appointment only, 24 hours after payment has been received
Credit card owner must be on site with ID and credit card used to place the order
If the order is arranged for a third party pickup (a freight company, family members or friends), the order must be paid through EFT (electronic fund transfer).
Hours: Mon-Fri 9AM-4PM local time
In-Store Pickup orders must be picked up within 5 business days, after which the discount price is voided.

Warehouse Pick-up Price Promo

Only to in-person self-pickup at our Warehouses in Richmond, Montreal and Mississauga.

This offer is not applicable with any other promotions or for online orders, and is limited to one item per person only.

Please note that prices are subject to change.
Promo price is available from June 19th to June 30th
Hours: Mon-Fri 9AM-4PM local time
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