Waxit Recommended Pressure Washer Upgrade Kit - Karcher K
An upgrade kit for non-hose-reel Karcher K Series machines with an MTM SG35 short gun, 15.2m UBERFLEX hose, lance and nozzles.
You save $92.65
Waxit Recommended Pressure Washer Upgrade Kit - Karcher K · No MTM Cannon$367.45 About 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 pressure washer 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 1/4" 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 Tecomec ceramic nozzle set offers 3 spray angles including a fan head with a swivel - so you can cut, rinse, or blast without switching setups. Each nozzle features a ceramic insert designed for improved durability and long-term performance.
This kit will not work with internally plumbed hose reel models.
Specifications
MTM SG35 Swivel Short Pressure Washer Gun
- Maximum pressure rating: 5,075 PSI
- Maximum flow rate: 45 L/min (12 GPM)
- Maximum temperature: 150°C
- Integrated stainless steel swivel inlet
- 3/8" male inlet connection
- 1/4" female quick connect outlet
- Reinforced shock-resistant body construction
- Ergonomic Easy Hold trigger design
- Compact short-gun design for improved manoeuvrability
- Made in Italy by MTM Hydro
- Ideal for professional detailing and pressure washing applications
MTM Bent Pressure Washer Lance
- Length: 500 mm
- Stainless steel lance construction
- Ventilated grip design for improved comfort and heat dissipation
- 1/4" quick connect inlet
- 1/4" quick connect outlet
- Lightweight and ergonomic design
- Extends reach for roofs, wheel arches and underbody cleaning
- Compatible with MTM Hydro pressure washer guns
- Made in Italy by MTM Hydro
Tecomec Ceramic Pressure Washer Nozzle Set
- Ceramic nozzle inserts for increased durability
- 1/4" quick connect fittings
- Colour-coded spray angles
- Higher wear resistance than standard stainless steel nozzles
- Suitable for professional and commercial pressure washing
- Precision-machined nozzle orifices
- Made in Italy by Tecomec
- Ideal for rinsing, wheel cleaning, underbody cleaning and general washing applications
MTM PF22.3 Foam Cannon Kit (2024) - OPTIONAL
- Wide-mouth bottle design for easy filling
- Quick-release bottle connection system
- Adjustable foam concentration dial
- Adjustable spray fan pattern
- Horizontal and vertical spray pattern adjustment
- High-density foam generation technology
- Chemical-resistant construction
- 1/4" quick connect fitting
- Suitable for consumer and professional pressure washers
- Made in Italy by MTM Hydro
What's Included
MTM SG35 Short Pressure Washer Gun - Premium Italian made short gun with smooth trigger operation and durable brass internals.
ProPulse 15.2m UBERFLEX 1/4" Hose - Ultra-flexible, kink-resistant hose for smoother pressure washing.
MTM 500mm Bent Lance - Premium bent pressure washer lances designed for improved comfort, reach and cleaning angles.
Tecomec Nozzle Set - Spray patterns: 15°, 25°, 40°
Quick Connect Fittings - Allows fast and easy swapping between foam cannons, nozzles and accessories.
-----------------------------------------------------MTM PF22.3 Foam Cannon (OPTIONAL) - High-performance foam cannon engineered for maximum foam coverage and effortless pre-washing.
Compatibility
Tested and made for non integrated hose reel Karcher K models such as:
- K2 Models (Non HR)
- K3 Models (Non HR & Premium)
- K4 Models (Non Premium & Power Control)
- K5 Models (Non Premium & Power Control)
- K6 Models
- K7 Models (Non Premium & Power Control)
Shipping & returns
Free shipping over $150 (excludes Dangerous Goods and Bulky Items). Dispatched same day for orders before 2pm. 30-day returns on unopened products. Learn more ›
What's in the kit
9 products
MTM SG35 Swivel Short GunMTM · $94.88 on its own
ProPulse Uberflex 1/4" Pressure Washer HosePropulse · $83.96 on its own
Tecomec Ceramic 1/4" QC Pressure Washer Nozzle SetTecomec Kit · $45.46 on its own
MTM Bent Pressure Washer LancesMTM · $67.16 on its own
PFTE TapeAquatouch · $3.16 on its own
Aquatouch Pressure Washer Adaptors | Karcher K QC (F) to M22 14mm (F)Aquatouch · $11.96 on its own
Aquatouch Pressure Washer Adaptors | Karcher K QC (M) to M22 14mm (M)Aquatouch · $7.96 on its own
Aquatouch Pressure Washer Adaptors | M22 14mm (M) to M22 (M)Aquatouch · $8.76 on its own
Aquatouch Pressure Washer Adaptors | 3/8" QC (F) to M22 (M)Aquatouch · $7.96 on its own
5.0 ★★★★★17 reviews
Read all reviews ›I brought this for the karcher k7 premium model.
Boby B. · Verified BuyerDefinitely makes a big difference having the short gun and if you lay the hose out in the sun for a couple of days it won't spring back up as much
AJ B. · Verified BuyerGot the upgrade minus the mtm foam sprayer.
Tony E. · Verified Buyer
Short Gun Control
The MTM SG35 short gun brings compact, responsive handling, especially useful in tight spaces and lower panels. Built with stainless internals, soft trigger action, and full quick-connect function.
Lightweight, No-Kink UBERFLEX Hose
15.2 metres of flexible polyurethane hose that doesn’t fight you. Glides better on concrete, resists UV, and avoids memory or twisting.
Ceramic 1/4" Nozzle Set
The 15° nozzle delivers stronger cleaning power, the 25° nozzle is the perfect all-rounder, and the 40° nozzle provides a wider, gentler rinse for paintwork and coated vehicles.
Built-In Foam Cannon Compatibility
Optional MTM PF22.3 foam cannon included, designed to mount directly to the SG35 via 1/4” quick-connect.
Pre-configured for Karcher electric pressure washers (K2 through K7), no guesswork.
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.
Will this kit fit all Karcher K Series models?
Most! This kit is built specifically for Karcher K Series electric pressure washers (K2 to K7). It includes the correct quick-connect and thread setups to make installation seamless with no additional adapters required. This kit does not work with integrated hose reel models
Does the kit include everything needed to install it?
Everything you need is in the box: gun, hose, lance, nozzles, fittings, and thread seal tape. Just remove your stock hose and gun, hook up the new gear, and you’re good to go. If you opted for the foam cannon, it also connects directly via quick-connect with no extra hardware.
How does the SG35 short gun improve control and usability?
The SG35 short gun is compact, ergonomic, and eliminates the bulk of the factory lance. With a soft trigger, 360° swivel, and stainless internals, it offers a much tighter, more responsive feel, especially when detailing wheels, lower panels, or tight spots.
What length is the hose and how does it compare to stock?
This kit includes a 15.2m UBERFLEX hose, which is longer and more flexible than most stock Karcher hoses. It’s around 10% lighter than a typical 1-wire rubber hose, doesn’t kink, and has a textured outer shell that glides more easily on concrete or driveways.
Reviews
- Setup
- Usability
- Quality
- Hose
- Compatibility
- BBBoby B.Verified BuyerReviewingWaxit Recommended Pressure Washer Upgrade Kit - Karcher KI recommend this productRated 5 out of 5 stars4 months agoBrilliant kit
I brought this for the karcher k7 premium model.
On the uberflex flex hose, I did cut one m22 connector off and replaced it with a karcher quick connect barb due to space limitations (i knew prior purchasing that i might need to)
The gun and accessories are a pleasure to use but the best of it all is the uberflex hose,
Easy to untangle but just the added 4-5m extra length, makes the world of difference
WCWaxit Car Care4 months agoStoked to hear you are happy with the kit. Makes life with the pressure washer significantly easier.
Thanks for taking the time to leave a review .
- ABAJ B.Verified BuyerReviewingWaxit Recommended Pressure Washer Upgrade Kit - Karcher KI recommend this productRated 5 out of 5 stars5 months agoThe upgrade you need
Definitely makes a big difference having the short gun and if you lay the hose out in the sun for a couple of days it won't spring back up as much
WCWaxit Car Care4 months agoGlad you're enjoying the Washer Kit.
Thanks for taking the time to leave a review! - TETony E.Verified BuyerReviewingWaxit Recommended Pressure Washer Upgrade Kit - Karcher KI recommend this productRated 5 out of 5 stars47 minutes agoGreat step up from what karcher gives you
Got the upgrade minus the mtm foam sprayer.
Really worth the upgrade, felt like i bought a newer more expensive pressure washer. The hose is really good compared to karchers and the stubby gun and lance for the money are really good.
- FMFevzi M.Verified BuyerReviewingWaxit Recommended Pressure Washer Upgrade Kit - Gerni / StihlI recommend this productRated 5 out of 5 stars5 months agoAwesome products and service
Great products the upgrade kit is great quality so much easier to set up and use. The hose length & quality is so much better the original gerni no more kinks and is long enough to reach around vehicle with ease. Will definitely be more products in the near future
WCWaxit Car Care4 months agoGlad to hear the upgrade kit has made life easier mate.
Thank you for taking the time to leave a review.
- JJadeReviewingWaxit Recommended Pressure Washer Upgrade Kit - Karcher KI recommend this productRated 5 out of 5 stars10 months ago5 Stars
Fitted perfectly an works a treat 👌
- JFJoshua F.Verified BuyerReviewingWaxit Recommended Pressure Washer Upgrade Kit - Karcher KI recommend this productRated 5 out of 5 stars11 months agoWorth 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!
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