4 models in this file
Kärcher Pressure Washer Hose Guide: Replacement or Extension
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Kärcher is one of the best-known pressure washer makers, and its compact electric K-series machines are popular with people who wash cars, RVs, boats and patios at home or on the road. Those machines use Kärcher’s own Quick Connect fittings, which makes it important to pick the right hose: a Kärcher hose that fits a K 4 will not necessarily fit a K1700, and a universal hose will not click into a K-series gun.
The three genuine Kärcher accessories here do three different jobs: a 25-foot hose and spray gun kit replaces lost or damaged parts on K 2 to K 5 machines, a water suction hose lets you draw from a bucket or tank instead of a tap, and a 25-foot high pressure hose with adapters serves K1700-K2300 electric and many gas pressure washers.
No. 1 of 4 · Kärcher
Kärcher Pressure Washer Hoses Compared
8.8/10 Our score
Best for: Washing RVs and boats away from a tap
What the listing says
- Karcher Compatibility Compatible with all Karcher K 2 models, K 3 Follow Me,K 4/K 4 Premium,and K 5/K 5 Premium.
- The Karcher Promise – Cleaner.
- High-Quality Hose 9.8 feet (3 meters) in length.
- Eco-Friendly Option Practical water suction allows for resource-saving use of alternative water sources
- 9.8 feet (3 meters) in length
- Genuine Karcher Accessory
Pros
- Draws from buckets, tanks, ponds
- Debris filter included
- 8 ft length
- 16 ounces
Cons
- Water max 104 F
- Compatibility statements conflict
Best for: K2 to K5 owners replacing hose and gun
Pros
- 25 ft hose plus spray gun
- Quick Connect click-in fittings
- Child safety lock
- 7 lbs
Cons
- Not for hose-reel models
- Not for K1700-K2000 or gas units
| Model | Purpose | Length | Pressure rating | Compatible machines |
|---|---|---|---|---|
| Kärcher 25 ft. Hose and Spray Gun (2.643-910.0) | Replacement high pressure hose and gun | 25 ft | Gun up to 2,000 PSI | K 2, K 3 Follow Me, K 4, K 5 (not hose-reel models) |
| Kärcher Water Suction Hose with Filter (2.643-101.0) | Inlet hose from bucket or tank | 9.8 ft (3 m) | 1,800 PSI listed | K-series electric (see notes) |
| Kärcher 25′ High Pressure Extension Hose (8.756-105.0) | Replacement or extension high pressure hose | 25 ft | Up to 3,600 PSI | K1700-K2300 and many gas models, not K1-K5 |
No. 2 of 4 · Kärcher
Kärcher 25 ft. Hose and Spray Gun Combo for K2 to K5 Machines
8.2/10 Our score
What the listing says
- Karcher Compatibility Compatible with all Karcher K 2 models, K 3 Follow Me,K 4/K 4 Premium,and K 5/K 5 Premium.
- The Karcher Promise – Cleaner.
- Multi-Surface Cleaner Perfect for cleaning concrete, pavement, driveways, patios, decks, sidewalks, RVs, cars, boats, homes, fencing, and more.
- Safe & User-Friendly Features a child safety lock to prevent accidental discharge
- Genuine Karcher Accessory
The Kärcher 25 ft. Hose and Spray Gun combo kit, part 2.643-910.0, is the replacement set for owners who have lost or damaged the gun or high pressure hose from their K 2, K 3, K 4 or K 5 electric pressure washer. It includes a 25-foot high pressure hose, an adapter and a spray gun, and weighs 2.7 pounds. Kärcher lists compatibility with all K 2 models, the K 3 Follow Me, K 4 and K 4 Premium, and K 5 and K 5 Premium.
The hose clicks quickly in and out of both the machine and the gun using Kärcher’s Quick Connect fittings, and the gun connects to spray wands with a Kärcher bayonet fitting. It is designed for Kärcher electric pressure washers up to 2,000 PSI and has a child safety lock to prevent accidental discharge. Kärcher lists uses from driveways, decks and fences to RVs, cars and boats.
The exclusions matter as much as the fit list. The kit is not compatible with Kärcher pressure washers that have hose reels, with the K1700 to K2000 electric models, with Kärcher gas pressure washers, or with other brands. If your K-series machine has a built-in reel, this is the wrong kit. For everyone else with a K 2 to K 5, this is the straightforward way to get back to washing with genuine parts. If you want a different handle feel, our pressure washer gun review covers aftermarket guns, though fitment on Kärcher Quick Connect needs careful checking.
No. 3 of 4 · Kärcher
Kärcher Water Suction Hose with Filter for Washing Away From a Tap
8.8/10 Our score
What the listing says
- Karcher Compatibility Compatible with all Karcher K 2 models, K 3 Follow Me,K 4/K 4 Premium,and K 5/K 5 Premium.
- The Karcher Promise – Cleaner.
- High-Quality Hose 9.8 feet (3 meters) in length.
- Eco-Friendly Option Practical water suction allows for resource-saving use of alternative water sources
- 9.8 feet (3 meters) in length
- Genuine Karcher Accessory
The Kärcher Water Suction Hose with Filter, part 2.643-101.0, is the accessory that makes a Kärcher genuinely useful away from a spigot. It connects to the pressure washer’s water inlet and lets the machine draw water from a bucket, rain barrel, tank or pond instead of a garden hose. A filter at the end keeps debris out of the pump. The hose is 9.8 feet (3 meters) long, weighs 16 ounces and is made of plastic and rubber.
This is how it works in practice. A pressure washer normally relies on the water pressure from a garden tap to feed its pump. Machines that support suction, or self-priming, can instead pull water through a hose like this one, as long as the source sits close by and the water is clean enough. For campers, boaters and RV owners, that means you can fill a container or use an onboard tank and wash a rig at a site with no spigot. Kärcher specifies a maximum water temperature of 104 F.
The compatibility information is inconsistent, so read it carefully. The feature list says it fits all K 2 models, the K 3 Follow Me, K 4 and K 5, while the description says it connects to the K4 and K5 and is compatible with Kärcher pressure washers rated 1,800 PSI or greater. It is also listed as not compatible with the K1700-K2000 or gas pressure washers. Check your machine’s manual to confirm it supports suction operation before you plan a trip around it. When it fits, this is the Kärcher water suction hose we would pack for any off-grid washing.
No. 4 of 4 · Karcher
Kärcher 25′ High Pressure Extension Hose for K1700-K2300 and Gas Washers
9.2/10 Our score
Best for: K1700-K2300 and gas washer owners
What the listing says
- Compatibility Fits Karcher electric models K1700-K2300 and most brands gas models rated up to 3600 PSI that…
- Replacement/Extension Hose Kit Can be used as a replacement hose, or can be used to extend an existing hose…
- Adapters Included (1) M22-14 male to female 3/8" quick-connect adapter, (2) M22-14 male to male 3/8" quick-connect adapters,…
- Superior Durability Made from highly durable kink-resistant thermoplastic; Compatible with pressure washers rated up to 3600 PSI
- Genuine Karcher Accessory
Pros
- Rated to 3600 PSI
- Four adapters included
- Kink-resistant thermoplastic
- Quick Connect or M22-14
Cons
- Does not fit K1 to K5
- No spray gun included
The Kärcher 25′ High Pressure Extension Hose, part 8.756-105.0, is aimed at a different set of machines. It fits Kärcher electric models K1700 to K2300 and most brands’ gas models rated up to 3,600 PSI that use standard Quick Connect or M22-14 hose connections. It does not fit the Kärcher K1, K2, K3, K4 or K5 electric models.
You can use it as a straight replacement hose or to extend an existing hose, thanks to four included adapters: one M22-14 male to 3/8-inch female quick-connect adapter, two M22-14 male to 3/8-inch male quick-connect adapters, and one M22-14 male-to-male coupler. The hose is made from kink-resistant thermoplastic and rated to 3,600 PSI. The description says it fits most brands of both electric and gas washers, which is broader than the feature list, so rely on the connection types and pressure rating when checking your machine.
This suits owners of larger Kärcher electrics and gas machines who need more reach to get around a motorhome, a trailer or a boat on its trailer without moving the machine. For storing a long hose neatly between jobs, see our retractable pressure washer hose reel guide. If you own a K 2 to K 5, the combo kit is the right hose for you instead.
Before you choose
How to Choose the Right Kärcher Pressure Washer Hose
Start with your model number. This is the single most important step. The 25 ft hose and gun kit is for the K 2 to K 5 family without hose reels. The 25′ extension hose is for the K1700 to K2300 electrics and many gas machines, and explicitly does not fit K1 to K5. The suction hose is for K-series electrics, with some inconsistency in the listing about which ones.
Replacement, extension or water source. If your original hose is damaged or the gun is lost, you need a replacement: the combo kit for K 2 to K 5, or the 8.756-105.0 for bigger machines. If you need more reach, the 8.756-105.0 can extend an existing hose using its adapters. If your problem is that there is no tap where you wash, you need the suction hose rather than a longer high pressure hose.
Pressure rating. The combo gun is designed for Kärcher electric machines up to 2,000 PSI. The extension hose is rated to 3,600 PSI. Never use a hose or gun on a machine that exceeds its rating.
Connections. Kärcher K-series machines use Kärcher-specific Quick Connect fittings. Many other machines use standard 3/8-inch quick connects or M22-14 threads, which the extension hose’s adapters cover.
Traveling with a pressure washer. For RV and boat owners, the lightest setup is a compact K-series machine, the 25 ft combo kit and the 9.8-foot suction hose, which together let you wash from a water tank. Keep the suction filter clean and use only clear water to protect the pump. For more about long hoses and how they pack, our flexible pressure washer hose review is a useful read.
Questions people ask
FAQ
Which Kärcher hose fits a K5?
The 25 ft Hose and Spray Gun combo kit fits K 5 and K 5 Premium models without hose reels. The suction hose also lists the K5. The 25′ extension hose does not fit the K5.
Can a Kärcher pressure washer draw water from a bucket?
With the Kärcher Water Suction Hose with Filter, compatible models can draw from buckets, tanks and ponds. Check that your machine supports suction operation, and keep water under 104 F.
Can I extend my Kärcher K2 hose with the 25′ extension hose?
No. The 8.756-105.0 extension hose does not fit the K1 to K5 electric models.
Does the Kärcher combo kit fit gas pressure washers?
No. It is not compatible with Kärcher gas pressure washers, the K1700 to K2000 electrics, models with hose reels or other brands.
What adapters come with the Kärcher extension hose?
One M22-14 male to 3/8-inch female quick-connect adapter, two M22-14 male to 3/8-inch male quick-connect adapters and one M22-14 male-to-male coupler.
Are these genuine Kärcher parts?
Yes. All three listings describe them as genuine Kärcher accessories.
Prices, specifications and the feature lines above are read from the product listing and can change without notice. Scores are out of 10, based on listed specifications and buyer feedback; nothing on this page is written from handling the product.
