Features

Waxit Recommended Pressure Washer Upgrade Kit - Karcher K

The Waxit Recommended Pressure Washer Upgrade Kit gives you better flow, tighter control, and pro-quality components that actually feel good to use.

This upgrade kit was built specifically for Karcher’s K Series electric models — the ones that get used on driveways, daily drivers, and weekend jobs. And while the pressure washers are capable, the stock accessories often aren’t. Long lances, heavy hoses, and fixed connections all make the job harder than it should be.

That’s where this kit changes the game.

It starts with the MTM SG35 short gun — a professional-grade, Italian-built unit with stainless steel internals, quick-connect outputs, and a 360° swivel on the inlet. Unlike the OEM Karcher guns, which can feel oversized and restrictive, the SG35 gives you tight, comfortable control at every angle.

Then comes the 15.2m Propulse UBERFLEX hose. This is a textured polyurethane hose designed to glide across driveways, resist UV and abrasion, and not kink every time you move around the car. It’s lighter than the stock rubber hose by about 10%, and it feels way more agile during use.

Also included is the MTM 500mm bent lance, for when you need that extra reach without going full wand mode — perfect for roof lines or lower panels. The Aquatouch nozzle set offers five spray angles including a fan head with a swivel — so you can cut, rinse, or blast without switching setups.

Frequently Asked Questions

Here’s what most users ask about upgrading their Karcher K Series with this high-performance accessory kit — from compatibility to what makes it better than stock.

5.0
Rated 5.0 out of 5 stars
Based on 11 reviews
Total 5 star reviews: 11 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
11 reviews
  • JW
    James W.
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    3 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
    6 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
    6 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
    6 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.

  • TP
    Thai P.
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Superb upgrade

    Purchased the upgrade kit after using the standard Karcher gun and hose once. Having a shorter gun for wheels makes life so much easier and the hose upgrade over the standard one is night and day. No more coiling or kinks and so much easier to manage. The kit also came with all the necessary attachments which made the upgrade seamless!! Great job on the kit

  • JG
    John G.
    Flag of Australia
    Verified Buyer
    Reviewing
    Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    Quick delivery, well packed, perfect

    Quick delivery, well packed, perfect product.