4.3 Liter
Power Systems
| PRODUCT SPECIFICATIONS | |
| Model Number | 4.3L |
|---|---|
| Cylinders | V-6 |
| Combustion System | Spark-ignited |
| Cooling System | Water-cooled |
| Displacement | 262 cid (4.294 cc) |
| Compression Ratio | 9.8:1 |
| Bore & Stroke | 4.00 in x 3.48 in (101.6 mm x 88.4 mm) |
| Fuel Type | NATURAL GAS (NG), PROPANE (LP), BI-FUEL |
| Direction of rotation | Counter-clockwise viewed on flywheel |
SAE J1995 rated following 36300018 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 | 40 | 48 | 64 |
| Standby | LP | 40 | 51 | 68 |
| Prime | NG | 35 | 43 | 58 |
| Prime | LP | 35 | 45 | 61 |
| 60 Hz (1800 RPM) | ||||
| Rating | Fuel | kWe | kWm | bHp |
|---|---|---|---|---|
| Standby | NG | 50 | 58 | 78 |
| Standby | LP | 50 | 61 | 82 |
| Prime | NG | 40 | 52 | 70 |
| Prime | LP | 45 | 55 | 74 |
- Fuel options: Gasoline, LPG, NG
- Fuel and emission control system that meets Tier II EPA/CARB emission regulations for LSI engines
- Crank is forged, induction hardened steel with tangential fillets
- Heavy-Duty heads (same construction as PSI 8.8L)
- SAE flywheel housing and flywheel
- Auxiliary drive pulleys available
- Cooling fans
- Radiator
- Dry-type industrial air cleaners (safety element air cleaners available)
- Electronic governors
- Remote oil filter
- Auxiliary oil drain
- 95A alternator option / 70A alternator standard
- CANBUS J1939 interface
- High-flow cylinder head with straighter intake ports
- Roller valve lifters for reduced friction and improved fuel economy
- Positive inlet and exhaust seals for reduced oil consumption
- Counter-rotating balance shaft for smooth performance and low noise
- Composite rocker arm cover and front cover for noise reduction
- World-class engine sealing system for superior leak protection
- Common rear face to GM Powertrain industrial engines for easy hookup with housing
| DIMENSIONS | IN | MM |
| Length | 31.09 | 789.6 |
| Width | 24.12 | 612.7 |
| Height | 30.92 | 785.4 |
