| Engine Model | WG1903-N |
| Emission Regulation | EPA Tier 2/CARB Tier 3 + EU Stage V |
| Type | Vertical, water cooled 4-cycle spark ignited engine |
| Fuel | Natural Gas |
| Cylinders | 3 |
Bore and Stroke mm (in) | 88.0×102.4 (3.465×4.031) |
Displacement L (cu.in.) | 1.868 (114.0) |
| Aspiration | Naturally aspirated |
| Aftertreatment | Three-way catalyst |
Rated Output / Speed*1
kW (HP) / rpm | 32.5 (43.6) / 2700 |
Maximum Torque / Speed Nm (lb-ft) / rpm | 132 (97.4) / 1200 |
Length x Width x Height*1
mm (in) | 551 × 534 × 701 (21.7 × 21.0 × 27.6) |
Dry Weight*2
kg (lb) | 166 (366) |
Specifications are subject to change without notice.
Dimensions and dry weight are according to Kubota's standard specification.
Dimensions and weight depend on completed specifications.
LPG: Commercial liquid propane gas only. Equivalent to propane HD-5 of GPA standard.
Natural gas: The performance shown is with Japanese standard natural gas.
The lower heating value: 9699 kcal/m3 (1090 BTU/ft3)
*1: Gross intermittent SAE J1995
*2: Exclude cooling fan and exclude aftertreatment unit