Waxit Recommended Pressure Washer Upgrade Kit - Karcher HD
Upgrade kit for Karcher HD pressure washers with an MTM SG35 short gun, 15.2m Uberflex hose and Tecomec ceramic nozzle set.
You save $105.65
Waxit Recommended Pressure Washer Upgrade Kit - Karcher HD · No MTM Cannon$422.55 About Waxit Recommended Pressure Washer Upgrade Kit - Karcher HD
Designed for high-performance and commercial-level setups - this kit refines your Karcher HD pressure washer into a smoother, more powerful detailing tool.
If you’re using a Karcher HD or similar commercial-grade pressure washer, you already have solid hardware. But the accessories often don’t match that same quality. Long, clunky lances, stiff hoses, and restrictive fittings all compromise flow and handling. That’s where this upgrade kit steps in.
We’ve built this setup specifically for the demands of higher pressure and heat-capable units. It pairs flawlessly with most Karcher HD systems, Honda-based units, and other pro machines that use a 3/8" outlet.
At the heart of it is the MTM SG35 short pressure washer gun, built in Italy with stainless steel internals, a 360° swivel, and fast quick-connect swaps. Unlike the long factory wands, this setup gives you direct, agile control - ideal for precise detailing, underbody rinses, or tighter working areas.
The ProPulse Uberflex 15.2m hose isn’t just longer - it flows better, resists kinks, and stays flexible under load. It’s a major upgrade from the stock heavy rubber hoses that want to fight you the whole job.
Also included: The Tecomec ceramic nozzle set offers 3 spray angles (15°, 25°, 40°) 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.
Need foam? This kit supports all popular foam cannons, and is fully compatible with high-flow units and heat-rated pressure washers.
Whether you're upgrading your shop rig or setting up a mobile van, this pressure washer upgrade kit eliminates bottlenecks and delivers the kind of control and performance you expect from pro-grade equipment.
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
- M22 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 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.
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
6 products
MTM SG35 Swivel Short GunMTM · $118.60 on its own
ProPulse Uberflex 3/8" Pressure Washer HosePropulse · $239.95 on its own
Tecomec Ceramic 1/4" QC Pressure Washer Nozzle SetTecomec Kit · $45.46 on its own
MTM Bent Pressure Washer LancesMTM · $83.95 on its own
Aquatouch Pressure Washer Adaptors | Karcher HD Easy!Lock (F) to M22 14mm (M)Aquatouch · $18.95 on its own
Aquatouch Pressure Washer Adaptors | M22 (F) to 3/8" QC (F)Aquatouch · $14.95 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
Compact Control with the SG35
The MTM SG35 short gun replaces your bulky factory wand with a precise, ergonomic upgrade. Stainless steel internals, soft trigger pull, full swivel and quick connect ready.
Longer, Flexible UBERFLEX Hose
At 15.2m, the ProPulse Uberflex gives you better reach and real flexibility. It's lighter, kink-resistant and flows better than most commercial OEM hoses.
Ceramic 1/4" Nozzle Set
All featuring durable ceramic inserts designed for long-term performance and consistent spray patterns. From heavy grime removal to maintenance washes on coated vehicles.
Foam Cannon Compatible
This kit supports all standard 1/4" QC foam cannons, so whether you're running the MTM foam cannon or Nv Snowstorm, it's plug and play!
All components are rated up to 4000 PSI and 60°C - ready for serious pressure washing sessions.
Frequently Asked Questions
Running a Karcher HD or another pro-level unit? Here’s what you need to know about compatibility, performance, and how this kit transforms your pressure washing setup.
What pressure ratings are supported by this kit?
Every component in this kit, from the hose to the short gun, is rated to handle up to 4,000 PSI and 60°C water. It’s designed for commercial-level machines like Karcher HD units and won’t flinch under higher output or longer run times.
Does the short gun handle hot water?
Yes, the MTM SG35 short gun is heat-rated and capable of handling water up to 60°C. Combined with stainless internals and robust seals, it’s built to last even in demanding conditions, perfect for detailing, degreasing, or hot water rinses.
What performance improvements can I expect?
With smoother internal flow paths and less restrictive fittings, users have reported gains of up to 1L/min of additional water flow over factory setups. Add in the improved ergonomics, longer reach, and faster attachment swaps, and the difference is immediate.
How does the SG35 short gun compare to Karcher's OEM guns?
The SG35 short gun is lighter, more compact, and offers much better handling. While Karcher’s OEM lances are long and can feel bulky, this gun gives you fingertip control, a more comfortable trigger, and better balance especially when working close to the vehicle or underbody areas.
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!
