Simpson MSH3125-S Review

The Simpson MSH3125-S Gas Pressure Washer is a very well designed machine. From collaboration of Simpson and Honda comes this amazingly powerful and durable power washer. Two trusted brands have come together to create a power pressure washer that stands out dramatically against any other type in its class.

The simple design is a single frame of reinforced steel and combined with the strength of a Honda motor and the simplicity that Simpson power washers are best known for, the Simpson MSH3125-S will stand up to any test that you could throw at it.

Simpson MSH3125-S MegaShot

The MSH3125-S can be tailored to suit your needs with 5 variable power settings and the ability to change what you want when you want it with regards to water pressure. Both Simpson and Honda are brands known all over the world for their reliability and their excellent design capabilities. The MSH3125-S Pressure Washer comes with a full guarantee from both companies which give consumers ease of mind when purchasing this product.

Features and Specifications

The main features of the MSH3125-S are:

  • HONDA GC190 OHC engine oil is included
  • Maintenance-free OEM Technologies which provide higher pressure at the nozzle
  • Welded frame construction
  • Premium Pneumatic Tires
  • Kind and Abrasion resistant hose, provides flexibility and is equipped with easy twist-on connectors
  • Pro-style steel spray wand with 5 quick connect nozzle tips
  • Convenient on-board accessory storage for each accessory
  • Downstream detergent injection system for use of cleaners
  • Ergonomic spray gun with safety lock-out
  • Warranty/Guarantee for Consumer Use – 2 Years on HONDA engine, 1 Year on frame and pump components, 90 Days on spray accessory items.
  • See full specs and best price at

The Simpson MSH3125-S is great value for such a well known brand and is guaranteed to be up to the job. By spending this amount you are ensuring that you will be getting a top quality product at a reasonable price for the guaranteed cleaning power, strength and durability of a Honda engine with the usefulness and professional quality of Simpson pressure washers.

The MSH3125-S MegaShot will serve every need that you could possibly have when it comes to cleaning. There will be no need to use hand tools now, simply get set up, stand back and aim at whatever it is that needs to be refreshed and restored to its earlier glory. The kids can earn their pocket money with ease with this powerful machine, designed to get the job done in record time so that you don’t spend more time working than you do enjoying yourself.

Simpson MSH3125-S Review


  • Great performance and powerful system
  • Easy use and functionality
  • Perfectly designed spray gun and nozzles allow for supreme comfort while operating
  • Sturdy frame and thick tyres allow for multi-terrain usage
  • Onboard storage of all compartments make using this machine a dream
  • Honda engine, Simpson Power Washer; that says it all.
  • Heavy-Weight design means strength, power and effectiveness with no compromise.


  • There is no in-built detergent tank on this machine so it will require detergents to be stored separately.


Simpson MSH3125-S is one of the Top 10 the Best Pressure Washer for home use. We rate it 4.7 out of 5. As far as we are concerned this pressure washer is one of the best available to buy today because of its trusted brand recognition and the guaranteed quality that you know will come from both brands. Combined with the warranty you will be able to use this machine with the sure knowledge that if there ever was a concern, it would be taken care of without a hitch. Not only that, but when we tested the MSH3125-S MegaShot we found that the cleaning power that this machine produced was genuinely astounding.

Our Overall Rating: 4.7/5

The Simpson MSH3125-S MegaShot provides great usability and great power with a well-designed build structure and enhanced performance capabilities. This is by far one of the best machines we have reviewed. We rate it 4.7 out of 5 simply because of the fantastic peace of mind that comes from owning a machine designed by a collaboration of two of the most well recognised and trusted brands on the market and the fact that every test that we put this machine through it passed with flying colours. If you are looking for a power washer that will clean anything in or around the home and even stand up to some industrial work every now and then, then the Simpson MSH3125-S Gas Pressure Washer is the right tool for you.