Features

Waxit Recommended Pressure Washer Upgrade Kit - Gerni/Stihl/Bosch

Designed to replace the weak links in your Gerni, Stihl or Bosch setup - this upgrade kit fixes hose kinks, adds proper control, and makes detailing smoother from start to finish.

This Pressure Washer Upgrade Kit for Gerni, Stihl, and Bosch pressure washers is built to eliminate the factory flaws - tight coils, plastic connectors, and awkward lance handling. It includes everything you need to move to a high-performance setup: a pro-quality short gun, a lighter and more flexible hose, a proper lance, and full nozzle control.

At the centre is the MTM SG35 short gun, made in Italy with stainless internals, a 360° swivel, and 1/4” quick-connect fittings for fast swaps. It’s a huge upgrade over the oversized plastic factory guns - compact, responsive, and easier to manage in tight spaces or detailed work.

Then there’s the hose: the 15.2m ProPulse UBERFLEX. Built from a textured polyurethane outer with a braided internal core, it won’t kink, it’s UV/abrasion-resistant, and it glides easier over driveways and concrete without catching. It’s also around 10% lighter than most OEM hoses, which reduces fatigue during use.

The MTM 500mm lance and Aquatouch swivel nozzle set give you flexible cleaning angles and fast adjustments - letting you switch between tight high-pressure jets and wide rinse patterns in seconds. You’re covered for every task.

Adaptors are included for both older and newer Gerni, Stihl, and Bosch models, so the kit is plug-and-play for most units on the market. Just note: this setup is not compatible with internally plumbed hose reels.

Frequently Asked Questions

Whether you're upgrading from stock Gerni accessories or switching over from Stihl or Bosch, here’s what you need to know about compatibility and performance.

5.0
Rated 5.0 out of 5 stars
Based on 13 reviews
Total 5 star reviews: 13 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
13 reviews
  • J
    Jade
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    4 minutes ago
    5 Stars

    Fitted perfectly an works a treat 👌

  • JF
    Joshua F.
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Worth every cent

    I decided to finally splurge on this kit to upgrade my Karcher K3. It was worth every cent. I've only used the kit once since I got it (thanks to dreary winter weather), but it made washing the car so much easier. I no longer have to fight the original Karcher hose and gun, which annoyed me to no end. It was very easy to put together. Can't wait for the opportunity to use this kit more!

  • JW
    James W.
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Good product

    Easy company to deal with and a great product, will be back

  • RR
    Roger R.
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Marcher Upgrade Kit

    Waxit has made it simple to convert my Karcher to short gun with quick connect. All in one simple purchase

    Well done team Waxit

  • AV
    Alexis V.
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Ryobi
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Great upgrade

    Great upgrade to any Ryobi compatible, i have the bottom of line and performing nicely , really happy with this easy upgrade.

  • RS
    Rod S.
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Upgrade to my Karcher K5

    Ditched the lance, gun and hose on my new K5 compact and upgraded using this kit.

    Very easy process and makes using this little unit a whole lot easier.

    Thanks for putting this all togther in one kit.