21.9 Liter
Power Systems
| PRODUCT SPECIFICATIONS | |
| Model Number | 21.9L |
|---|---|
| Cylinders | 90˚, V-12 |
| Combustion System | Spark-ignited |
| Cooling System | Water-cooled |
| Displacement | 1,338 cid (21,561 cc) |
| Compression Ratio | 10.5:1 |
| Bore & Stroke | 5.04 in x 5.59 in (128 mm x 142 mm) |
| Fuel Type | NATURAL GAS (NG), PROPANE (LP) |
| Direction of rotation | Anti-clockwise viewed on flywheel |
SAE J1995 rated following 56100020 PSI Derate Specification with a tolerance of +/-5%. Power and torque values are based on standard assumptions. kWe values are based on standard assumptions for mechanical and electrical losses. Ratings and performance are solely for reference only and subject to site conditions and PSI application and ratings guidelines. The product images shown are for illustration purposes only and may not be an exact representation of the final product. All information is subject to change without notice.
POWER RATINGS
GENERAL DATA & FEATURES
DIMENSIONS
| 50 Hz (1500 RPM) | ||||
| Rating | Fuel | kWe | kWm | bHp |
|---|---|---|---|---|
| Standby | NG | 320 | 378 | 507 |
| Standby | LP | 220 | 276 | 370 |
| LTP | NG | 300 | 360 | 483 |
| Prime | NG | 280 | 340 | 456 |
| Prime | LP | 210 | 248 | 333 |
| 60 Hz (1800 RPM) | ||||
| Rating | Fuel | kWe | kWm | bHp |
|---|---|---|---|---|
| Standby | NG | 450 | 510 | 684 |
| Standby | NG (HO) | 500 | 570 | 764 |
| Standby | LP | 300 | 352 | 472 |
| LTP | NG | 400 | 455 | 610 |
| Prime | NG | 375 | 434 | 581 |
| Prime | LP | 250 | 299 | 401 |
- Water-cooled, turbo-charged, air-to-air inter-cooled, stoichiometric with replaceable wet cylinder liners
- 50C Ambient Cooling Capacity
- Cast iron block & heads, 10.5:1 compression ratio, overhead valve/2V configuration
- Crankshaft gear-driven oil system with cartridge-type filter, belt-driven centrifugal water pump
- 24VDC Starter and Brushless Alternator
- Serpentine, Self-Tensioning Fan Belt
- CANBUS J1939 interface
- 3-Way Catalytic Converter
- UL-recognized air filtration
- Integrated knock sensing and control
- Full ECU engine control with coil-on-plug variable timing ignition
- U.S. EPA-Certified and CARB-Compliant, Stationary & Mobile
- MasterTrak Telematics service (included for 1 year)
- Enhancements for prime & continuous power
- UL2200-Compliant or Listed Components
- Dual Fuel Auto Switch-Over
- Advanced diagnostics for improved up-time
| DIMENSIONS | IN | MM |
| Length | 90.3 | 2,294 |
| Width | 75.3 | 1,914 |
| Height | 83.6 | 2,124 |
