The Generac 7019 OneWash is one of the most versatile residential gas pressure washers on the market. With 3100 PSI, 2.4 GPM, and an adjustable pressure dial, it’s designed to handle everything from washing cars to blasting tough driveway stains. But is it the right pressure washer for you? In this review, we’ll break down the features, performance, pros/cons, comparisons, and alternatives to help you decide if the Generac 7019 is worth the investment.
Quick Verdict
The Generac 7019 is a smart choice for homeowners who want a powerful yet flexible gas pressure washer. Its adjustable pressure control makes it safer for cars and siding, while its maximum 3100 PSI output is strong enough for concrete and decks. If you want one machine that can do it all around the house, the OneWash is a great option.
Key Features – Generac 7019
- Pressure: Adjustable 2000–3100 PSI
- Flow Rate: 2.4 GPM
- Engine: Generac 196cc OHV engine
- Pump: Axial cam pump (maintenance-free)
- Nozzles: 4 quick-connect spray tips (0°, 25°, 40°, soap)
- Detergent: 0.5-gallon onboard detergent tank
- Hose: 25-foot high-pressure hose
- Frame: Sturdy steel frame with 11” never-flat wheels
- Weight: 57 lbs
Who Is It For?
The Generac 7019 is designed for homeowners who want one washer for multiple cleaning jobs. It’s ideal for:
- Washing cars, trucks, and RVs (lower PSI setting)
- Cleaning decks, patios, and outdoor furniture
- House siding and fences
- Medium-sized driveways and sidewalks
Performance Review
With its PowerDial™ adjustable pressure, the Generac 7019 makes it easy to switch between delicate and heavy-duty cleaning. On the low setting, it’s safe for cars and vinyl siding. On high, the 3100 PSI and 2.4 GPM output can blast through dirt, mildew, and driveway stains. The 196cc engine starts easily, and the axial cam pump provides reliable performance without maintenance.
Pros and Cons
Pros:
- Adjustable pressure for multiple surfaces
- Powerful 3100 PSI max output
- Onboard detergent tank for convenience
- Easy-start 196cc engine
- Affordable compared to pro-grade units
Cons:
- Axial pump (not rebuildable like triplex pumps)
- No 15° nozzle included (useful for tough stains)
- Louder than electric models
Generac 7019 vs Competitors
| Model | PSI / GPM | Engine | Pump | Price |
|---|---|---|---|---|
| Generac 7019 OneWash | 3100 / 2.4 | Generac 196cc | Axial cam | Check Price |
| Simpson MSH3125-S MegaShot | 3200 / 2.5 | Honda GC190 | Axial cam | Check Price |
| Westinghouse WPX3200 | 3200 / 2.5 | Westinghouse OHV | Axial cam | Check Price |
| Generac 6565 (Pro) | 4200 / 4.0 | Generac 420cc | Triplex | Check Price |
Ease of Use
The Generac 7019 is designed with convenience in mind. The PowerDial™ makes adjusting PSI simple, the onboard detergent tank saves time, and the 11” wheels make it easy to move across grass or gravel. At 57 lbs, it’s manageable compared to heavier gas units, though it’s bulkier than electrics.
Best Accessories for the Generac 7019
- Foam Cannon – Great for car washing.
- Surface Cleaner – Cuts driveway and patio cleaning time in half.
- Extension Wand – Useful for siding and second stories.
- 15° Quick-Connect Nozzle – Adds a powerful middle option.
Frequently Asked Questions
1. Can the Generac 7019 wash cars?
Yes — just set the PowerDial to a lower PSI and use a 40° nozzle or foam cannon for a safe wash.
2. Does it have a detergent tank?
Yes, it has a 0.5-gallon onboard detergent tank for soaps and cleaners.
3. How long will it last?
The Generac engine is reliable and should last 5–7 years with proper maintenance. The axial pump is durable but not rebuildable like triplex pumps.
4. Can it strip paint?
Yes, on its highest setting with a narrow nozzle, it can strip paint and graffiti.
5. Is it worth the money?
Yes — it’s one of the most versatile gas washers in its price range, especially with the adjustable pressure feature.
Final Verdict – Should You Buy the Generac 7019?
The Generac 7019 OneWash is a versatile, mid-range gas pressure washer that offers the perfect balance of power and flexibility. Its adjustable pressure dial makes it safe for delicate jobs like car washing while still powerful enough for tough tasks like driveways and decks. If you want one washer that can do it all, the Generac 7019 is an excellent choice.