ATCO GTX 38H Twin Ride-On Lawn Mower
The GTX 38H Twin is the premium step up in ATCO's garden tractor range, and the upgrade from the GT 38H is more than just a badge. The Stiga ST 600 V-Twin OHV engine is a genuine improvement over the ST 550 — twin cylinders running in a V configuration produce lower vibration than an inline twin, which means less wear on components over time, quieter operation, and a smoother feel across longer mowing sessions. For a machine likely to be used on estates up to around 5,000m², that mechanical longevity matters.
The 98cm twin-blade deck covers ground efficiently, and the range of cutting modes — collecting, mulching, and rear discharge — makes it adaptable to different conditions and seasons. The mulching plug is included in the box, so switching between collecting and returning clippings to the lawn requires no additional purchase. A trailer hitch is also included, making the GTX 38H useful year-round for towing light accessories beyond the mowing season.
The 300-litre collector is one of the largest available on a domestic garden tractor — significantly bigger than the GT 38H's 240-litre unit — and a full-load warning buzzer means you won't discover it's overflowing mid-run. The six-LED dashboard display keeps key information visible, and the seat safety contact breaker cuts the engine if the operator leaves the seat, an important safety feature on a machine of this size. The deck washing link allows the underside to be cleaned via a garden hose without getting underneath the machine, and anti-scalp wheels protect the lawn surface on uneven terrain.
The hydrostatic transmission, ergonomic soft-grip steering wheel, and electromagnetic blade engagement carry over from the rest of the range. A 5-year manufacturer's warranty is included.
Key Specifications
| Feature | Detail |
|---|---|
| Engine | 586cc Stiga ST 600 V-Twin OHV |
| Power Output | 11.2kW |
| Cutting Width | 98cm (twin blades) |
| Cutting Heights | 7 positions — 30 to 90mm |
| Grass Collector | 300 litres with full buzzer |
| Fuel Tank | 7 litres |
| Transmission | Hydrostatic, pedal-operated |
| Traction | Rear-wheel drive |
| Blade Engagement | Electromagnetic |
| Cutting Modes | Collect, mulch, rear discharge |
| Reverse Mowing | Yes |
| Deck Cleaning | Onboard washing link |
| Anti-Scalp Wheels | Yes |
| Trailer Hitch | Included |
| Mulching Plug | Included |
| Warranty | 5 years |




