Cummins Westport Inc. designs, engineers, and markets 6 to 12 litre spark-ignited automotive natural gas engines for commercial transportation applications such as truck and buses.

1. ISX12N - a 12-liter natural gas engine designed for heavy-duty trucks and buses. It meets the stringent EPA and CARB emissions standards and offers up to 400 horsepower with near-zero NOx emissions, making it a top choice for eco-friendly transportation.
2. B6.7N - a 6.7-liter natural gas engine suitable for medium-duty trucks, buses, and vocational vehicles. It provides up to 240 horsepower and is known for its low emissions and high efficiency, ideal for fleets aiming to reduce their carbon footprint.
3. L9N - a 9-liter natural gas engine that delivers up to 320 horsepower for transit, refuse, and truck applications. It is renowned for its ultra-low NOx emissions and high reliability, offering an environmentally friendly solution for various heavy-duty applications.
4. ISB6.7 G - a 6.7-liter engine tailored for school buses and shuttle operations. It offers 250 horsepower and combines clean-burning natural gas technology with the robust performance and durability required for frequent stop-and-go driving.
5. ISL G - a 8.9-liter natural gas engine offering up to 320 horsepower for urban transit and refuse fleets. It features a three-way catalyst for emissions control and is compatible with compressed natural gas (CNG) and liquefied natural gas (LNG), ensuring operational flexibility and reduced emissions.
6. ISB6.7 G Near Zero - a 6.7-liter natural gas engine achieving near-zero NOx emissions, ideal for medium-duty applications. It offers up to 240 horsepower and is perfect for environmentally conscious fleets aiming to minimize their environmental impact.
7. L9N Near Zero - a 9-liter natural gas engine that provides up to 320 horsepower with near-zero NOx emissions. It is suitable for transit, refuse, and truck applications, offering a highly efficient and eco-friendly power solution.
8. ISX12N Near Zero - a 12-liter engine that combines high performance with near-zero NOx emissions. It delivers up to 400 horsepower and is ideal for heavy-duty trucks and buses focused on sustainability and environmental compliance.
9. CNG/LNG Fuel Systems - Cummins Westport offers comprehensive CNG and LNG fuel systems tailored to meet the needs of various applications. These systems are designed to ensure optimal performance and efficiency, providing reliable fuel delivery for natural gas engines.
10. Maintenance and Training Programs - Cummins Westport offers maintenance and training programs designed to support fleet operators and technicians. These programs include comprehensive training on natural gas engine maintenance, troubleshooting, and best practices for maximizing engine life and performance.
11. Remote Monitoring and Diagnostics - Cummins Westport's remote monitoring and diagnostics services provide real-time data and analysis for natural gas engines. This service helps fleet managers optimize engine performance, predict maintenance needs, and reduce downtime through proactive management.

 

 show less

---

---

Company Resources
Calculators - GHG Emissions Calculator for Natural Gas Engines The Cummins Westport Greenhouse Gas Emissions (GHG) Calculator provides a representative Well to Wheel (WTW) GHG emissions analysis of natural gas engines in different applications. It is based on three published North American Lifecycle GHG Calculators.   Presentations - Annual fuel savings estimator Natural gas versus diesel   Presentations - Cummins Westport ISL G CNG Engine Brochure Cummins Westport ISL G CNG Engine Brochure   Presentations - Cummins Westport ISX12 G CNG Heavy-Duty Truck Engine Cummins Westport ISX12 G CNG Heavy-Duty Truck Engine