The 8.9-liter ISL G has met EPA 2010 emissions standards since 2007 using Stoichiometric cooled-Exhaust Gas Recirculation (SEGR) spark-ignited combustion to create a high-performance natural gas engine.
The 8.9-liter ISL G has met EPA 2010 emissions standards since 2007 using Stoichiometric cooled-Exhaust Gas Recirculation (SEGR) spark-ignited combustion to create a high-performance natural gas engine. Torque at idle and fuel economy are improved versus lean-burn engines by 30% and 5%, respectively.
Cooled EGR, in combination with stoichiometric combustion (the theoretical or ideal combustion process in which fuel and oxygen are completely consumed), creates an oxygen-free exhaust, which allows for the use of Three-Way Catalyst (TWC) aftertreatment. TWCs are effective, simple, passive devices that are packaged as a muffler and are maintenance-free. The ISL G does not require active aftertreatment such as DPFs or SCR.
The Natural Alternative.
The ISL G is rugged and reliable because it shares many components and parts with Cummins L Series diesels and is built on the same assembly line as Cummins diesels. A wastegated turbocharger with electronic control for precise air handling and full drive-by-wire throttle control provide impressive diesel-like performance.
A new ECM provides full monitoring and control of engine sensors, fuel system and ignition system. The ECM provides full interface capability to Cummins INSITE™ and diagnostic service tools. It also provides Original Equipment Manufacturers (OEMs) and end users with the ability to tailor performance of the engine to fit the vehicle mission.
Considering a Cummins engine purchase?Check with Qingbang Online Service.
Cummins ISL8.9 Engine Ratings
Engine Model
Advertised hp (kW)
Peak Torque lb-ft (N•m) @ rpm
Governed Speed
ISL G 320
320 (239)
1000 (1356) @ 1300
2200 rpm
ISL G 300
300 (224)
860 (1166) @ 1300
2200 rpm
ISL G 280
280 (209)
900 (1220) @ 1300
2200 rpm
ISL G 250
250 (186)
730 (990) @ 1300
2200 rpm
Cummins ISL8.9 Engine Overview
Every Alternative: Cummins Westport ISL G
The 8.9-liter ISL G has met EPA 2010 emissions standards since 2007 using Stoichiometric cooled-Exhaust Gas Recirculation (SEGR) spark-ignited combustion to create a high-performance natural gas engine. Torque at idle and fuel economy are improved versus lean-burn engines by 30% and 5%, respectively.
Cooled EGR, in combination with stoichiometric combustion (the theoretical or ideal combustion process in which fuel and oxygen are completely consumed), creates an oxygen-free exhaust, which allows for the use of Three-Way Catalyst (TWC) aftertreatment. TWCs are effective, simple, passive devices that are packaged as a muffler and are maintenance-free. The ISL G does not require active aftertreatment such as DPFs or SCR.
The Natural Alternative.
The ISL G is rugged and reliable because it shares many components and parts with Cummins L Series diesels and is built on the same assembly line as Cummins diesels. A wastegated turbocharger with electronic control for precise air handling and full drive-by-wire throttle control provide impressive diesel-like performance.
A new ECM provides full monitoring and control of engine sensors, fuel system and ignition system. The ECM provides full interface capability to Cummins INSITE™ and diagnostic service tools. It also provides Original Equipment Manufacturers (OEMs) and end users with the ability to tailor performance of the engine to fit the vehicle mission.
Considering a Cummins engine purchase?Check with Qingbang Online Service.
