Model # HPWP15

Internet #202435985

Buffalo Tools 5.5 HP Gas-Powered 1.5 in. High Pressure Water Pump

Discontinued Buffalo Tools

5.5 HP Gas-Powered 1.5 in. High Pressure Water Pump

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Product Overview

Since 1964 Buffalo tools has been a leader in the Hardware industry. Buffalo Tools offers the widest range of high quality Tools including Air tools, Power Tools, Hand tools and other construction and hardware products. Many of our products are using only the finest materials. Our imported tools are carefully checked for the highest level of craftsmanship and functionality. Design and easy functionality is the key to successful home improvement, and Buffalo Tools continually searches out the latest trends in order to bring home improvement to the highest level the easy way. The HPWP15 has a Single Cylinder, 4-Stroke engine with a built-in Air Cooling System. It also has an output of 5.5 Horsepower and 4,000 RPMs, making it a dependable buy, with an exceptional value.

  • Max water flow: up to 793 gallons per hour 3,600 RPM. max head: 180.5 ft; max suction head: 26.5 ft; delivers up to: 80 PSI
  • Single cylinder and 4-stroke engine; max power output: 5.5 HP / 4,000 RPM; 163cc
  • High pressure output, ideal for applications with sprinklers or nozzles
  • 3 Hours continuous operating with 1 gallon fuel tank
  • Recoil start with a self-priming pump
  • Port size: 1.5 in. NPT threaded
  • Cast iron propeller for rugged usage and durability
  • EPA approved
  • Ideal for small farm owners, lawn & pool maintenance, & water supply in an emergency
  • Convenient & compact design

Info & Guides

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Ratings (173) (5) (0) (0)
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Maximum Pumping Height (ft.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Adjustable Speed
Corrosion Resistant
Discharge Flow @ 0 ft. (gallons/hour)
Discharge Flow @ 10 ft. (gallons/hour)
Float Switch
Fuel Tank Capacity (gallons)
Hardware Included
Head Pressure (ft.)
Horsepower (hp)
5-1/2 hp
Housing Material
Inlet Connection
Threaded male
Maximum Discharge Flow (gallons/hour)
Maximum Working Temperature (F)
Minimum working temperature (F)
Oil Capacity (oz.)
Outlet Connection
Threaded male
Power Type
Gas Powered
Product Weight (lb.)
Pump Switch Type
Run-Dry Capable
Solids Handling

Warranty / Certifications

Certifications and Listings
1-UL Listed,ETL Listed
Manufacturer Warranty
90 Days

More Products With These Features


Customer Questions & Answers

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Customer Reviews

5.5 HP Gas-Powered 1.5 in. High Pressure Water Pump is rated 2.2 out of 5 by 5.
Rated 3 out of 5 by from OK for light use When my pump arrived I was anxious to try it out, but it woulnd't start for nothing. After reading other reviews, and the useless instructions, I decided that calling for tech support would be pointless. So I decided to rely on my own mechanical skills to troubleshoot the problem. I discovered that the fuel line was installed in such a way that it put too much of bend in it and pinched off the fuel supply. Once I replaced the fuel line, it started right up. Seems to have good pressure, and it emptied a 650 gallon tank very quickly. I would not recommend this pump for heavy industrial use.
Date published: 2012-04-17
Rated 1 out of 5 by from Newly purchased and engine would not start After checking obvious things like spark plug connectection, fuel tank to carburator connection, etc. decided to call Buffalo Tools customer support. The person that answered the phone put me on hold for 10 minutes while a technician was notified of my situation. The phone person (not the technician) comes back on the line and says "You have to fill the oil in the crankcase to the top until no more oil can be put in". Needless to say that didn't work. More contact with support rendered more hold time and the phone person (still no contact with a technician) communicating "Are you trying to start it on level ground?" and "Is there gas in the tank?". I will be returning this product to Home Depot and purchasing another brand. Both the product and Buffalo Tools support were disappointing.
Date published: 2012-03-16
Rated 2 out of 5 by from damaged when received The gas tank was broken loose and it would not run due to a pinched gas line. We repaired it and it works fine but it took 3 or 4 hours time, not what you need when you're ready to use a new prduct
Date published: 2011-08-06
Rated 1 out of 5 by from no parts available I cannot recommend purchasing this pump any longer.I attempted tp obtain a shaft seal from the company and was told parts are not available. The pump works good but they are throwaways when they need service
Date published: 2014-05-21
Rated 4 out of 5 by from Great pump with lots of output pressure. I installed this pump on a water trailer for fire fighting use. It has never failed and has out sprayed the local fire dept. pump. With the idle set to the lowest it will go I get a good 75 spray from the hose. Great back-up for when the fire dept can't make it there in time!!!
Date published: 2012-09-15
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