The GX390T2‑QHP1 is a Honda GX390-series general‑purpose engine—a robust 4‑stroke, single‑cylinder, air‑cooled OHV motor optimized for professional use in construction, landscaping, generators, pumps, welders, and more.
Engine/Part: GX390TQH-1894998
| Weight | 31.9 kg |
|---|---|
| Dimensions | 40.7 × 45.9 × 44.9 cm |
| Engine Type: | 4‑stroke single cylinder, OHV (overhead valve), 25° inclined horizontal shaft |
| Displacement: | 389 cm³ (bore × stroke: 88 × 64 mm) |
| Net Power: | 11.7 HP (8.7 kW) @ 3,600 rpm |
| Continuous Power: | ~8.6 HP (6.4 kW) @ 3,000 rpm; ~9.4 HP (7.0 kW) @ 3,600 rpm |
| Maximum Torque: | ~26–26.5 Nm @ 2,500 rpm (~19.5 lb‑ft) |
| Compression Ratio: | 8.2 : 1 |
| Ignition System: | Digital CDI with variable timing |
| Starter: | Manual recoil (electric optional) |
| Fuel Tank: | 6.1 L (≈1.6 gal) |
| Fuel Consumption: | ~3.5 L/h @ rated power (3,600 rpm) |
| Oil Capacity: | 1.1 L (≈1.16 qt) |
| Dimensions (L×W×H): | ~406 × 460 × 448 mm (16 × 19.1 × 17.7 in) |
| Dry Weight: | ~31–31.7 kg (69 lb) |
