Many Stihl and Nilfisk pressure washers use a non-standard hose thread.
It looks almost identical to M22-14—but it’s just different enough that standard hoses won’t fit.

That means you’re locked into their original hoses.

This adapter solves that.

✔ Fixes “hose won’t fit” issue on Stihl & Nilfisk machines

What This Adapter Does

• Converts Stihl/Nilfisk outlet to standard M22-14 thread
• Allows use of aftermarket hoses and accessories
• Compatible with Rockcar hoses, trigger guns, and upgrade kits
• Precision fit with integrated O-ring seal

Why You Need It

If you’ve tried upgrading your hose and found it won’t fit—this is why.

This adapter lets you:

• Upgrade to a flexible, kink-resistant hose
• Connect foam cannons and pro trigger guns
• Stop being locked into brand-specific fittings

Tested & Proven

This adapter is custom made and already tested in New Zealand.

“I've used the fitting for the Nilfisk blaster—fits and works great.”
— Matt C, Auckland

We’ve tested it on selected Stihl and Nilfisk machines, and it’s working well.
We’ll continue updating compatibility as we get more feedback.

How It Works

The adapter has two sides:

• Machine side → Matches the Stihl/Nilfisk outlet thread
• Hose side → Standard M22-14 male thread

Simply:

1. Thread the adapter onto your machine
2. Attach your M22-14 hose
3. You’re ready to go

Important Notes

• Designed for Stihl & Nilfisk machines with the common outlet thread
• Due to limited manufacturer specs, check your fitting before ordering
• If unsure, send us a photo—we’re happy to help

Recommended Upgrades

Pairs perfectly with:

• Rockcar Flexible Hose (10m) Rockcar green flexible hose
• Rockcar Stealth Foam Cannon  professional trigger and 10m kink resistant flexible hose upgrade kit from Rockcar.  
• Rockcar Trigger Gun Upgrade Kits

Summary

A simple fix that unlocks your machine.

Convert your Stihl or Nilfisk to standard M22-14—and run proper gear.