Jetwave Black GX 275-13 Cold Water Petrol Pressure Washer
Why Buy From Us
Jetwave Black GX 275-13 — Honda GX270 Petrol Pressure Washer with Bonus Turbo Head
The Jetwave Black GX 275-13 is a semi-professional petrol pressure washer built for tradies, contractors, and rural operators who run the machine weekly rather than occasionally. At 4,000 PSI and 13.5 LPM with a genuine Honda GX270 engine and Italian-made Comet™ Triplex plunger pump, it handles the harder, more frequent applications that the domestic GS range isn't rated for.
At $2,899 — $1,400 more than the Black GS — the GX upgrade buys three meaningful things: a Honda GX270 engine rated for commercial duty cycle, a Comet™ brass head Triplex pump over the GS's AAA alloy unit, and a higher 4,000 PSI output with significantly more flow at 13.5 LPM. For operators who clean weekly rather than a few times a year, the GX engine and pump specification handles the sustained use without the wear rate a domestic-rated machine experiences at commercial frequency. Pair it with the matched surface cleaner and you have a full system for large flat areas — more on that below.
At 66kg it's heavier than the GS — this is a two-wheel trolley machine for sites where it stays on the ground rather than loading into a van boot regularly. The 15m double wire braid hose and 13" pneumatic tyres handle moving it across a work site without difficulty.
Engine and Pump
The Honda GX270 is a commercial-grade 9HP engine with a 3-year Honda warranty — a significant step up from the GS190 in the Black GS. The GX engine series is built for higher duty cycles and sustained operation. Paired with the Comet™ Triplex plunger pump — brass head, ceramic pistons, Italian-made — the GX 275-13 is rated for the weekly use pattern that tradies and contractors actually run these machines at.
Frame and Mobility
Steel powder-coated trolley with 13" pneumatic tyres — larger tyres than the GS for better stability and movement on uneven surfaces. The Jetwave Safety System includes a built-in pressure relief valve protecting the unit from overpressure damage. At 66kg it's manageable on flat ground but not a one-person lift into a van. 4.5L fuel tank with low oil shutdown.
What's Included
- Black GX spray gun with half lance
- 800mm lance with 5 snap-on nozzles (0°, 15°, 25°, 40°, soap)
- 15m double wire braid high-pressure hose (M22 couplings)
- In-line chemical injector with hose and strainer
- Bonus Turbo Head (RRP $149 — included free) — rotating nozzle delivering up to 50% more cleaning impact on driveways, concrete, and stubborn surface contamination
Complete the System — Add the Surface Cleaner, Get a Free Foamer
The bonus turbo head handles stubborn spot cleaning, but for large flat areas — driveways, forecourts, shed floors, concrete hardstand — a flat surface cleaner is the attachment that changes the job. It covers a wide path in one even pass instead of working back and forth with a lance, and the GX's 13.5 LPM flow drives it at full effectiveness where a smaller machine would struggle.
Buy the Black GX together with the matched Jetwave Flat Surface Cleaner ($990) and we'll add the JW3 Foamer Bottle Kit free — a $206.80 value. That gives you the full wash cycle: foam down, surface clean, rinse off — every part matched to the machine and ready from the first job.
- Jetwave Flat Surface Cleaner — covers a wide path in a single pass with an even, streak-free finish, so large concrete and paved areas clean in a fraction of the time a lance alone takes, and sized to run on the GX's higher flow rate
- Jetwave JW3 Foamer Bottle Kit (1L) — FREE — lays down thick clinging foam before you clean, so detergent has time to lift grime and grease, and one pass does the work of two
- One delivery, one freight charge — buy the surface cleaner on its own later and you pay freight twice; bought with the machine it ships together in a single delivery
Black GX vs Black GS — Which One Do I Need?
The Black GS ($1,499) uses a Honda GS190 engine and is rated for domestic occasional use — regular home cleaning, hobby farm equipment, vehicles, and outdoor surfaces. It's the right choice for homeowners and rural property owners who clean periodically.
The Black GX (this machine) uses a Honda GX270 engine — a commercial-grade engine with a higher duty cycle rating and 3-year Honda warranty — and is rated for semi-professional weekly use. It's the right choice for tradies, small contractors, and rural operators running the machine regularly for longer sessions and harder applications. The Comet™ Triplex pump specification and higher flow rate at 13.5 LPM also make a meaningful difference on larger surface areas and tougher contamination.
If you're cleaning your own property a few times a year — the Black GS. If you're running the machine weekly for commercial or semi-commercial work — the Black GX. Give us a call if you're on the fence and we'll help you decide.
Technical Specifications
- Product Code: CW4000-13.5P
- Pressure / Flow: 4,000 PSI / 13.5 LPM
- Engine: Honda GX270, 9HP, 270cc, air-cooled, pull start
- Pump: Comet™ Triplex Plunger — brass head, ceramic pistons, Italian-made
- Drive: Direct drive at 3,400 RPM
- Fuel: Unleaded, 4.5L capacity, low oil shutdown
- Hose: 15m double wire braid (M22 couplings)
- Frame: Steel powder-coated trolley with 13" pneumatic tyres
- Weight: 66kg
- Dimensions: 940mm (L) × 560mm (W) × 680mm (H)
- Usage Rating: Semi-professional weekly use
Product manual:
Download the product manual here.
Warranty
- Pump and unit: 1 year
- Engine: 3 years (Honda GX warranty)
The Black GX is rated for semi-professional weekly use. If your application is continuous daily commercial use, give us a call and we'll point you toward the right commercial Jetwave model for your workload.
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