The Cummins Westport B Gas Plus engine is a six-cylinder lean burn spark-ignited natural gas vehicle engine that delivers from 195 to 230 hp with ultra-low emissions. It provides excellent torque, high fuel efficiency and reliable, robust performance.
Due to new emissions regulations effective in 2010, the B Gas Plus engine is no longer available in North America.
For a brochure on the Euro B Gas Plus engine, click here.
Advertised Horsepower | 195–230 hp | 145–172 kW |
Peak Torque | 420–500 lb-ft | 570–678 N•m |
Governed Speed | 2,800 rpm | |
Clutch Engagement Torque | 285 lb-ft | 386 N•m |
Number of cylinders | 6 | |
Compression ratio | 10:1 | |
Oil System Capacity | 4.0 U.S. gal | 15 L |
Coolant Capacity | 10.5 U.S. qts | 9.9 L |
Net Weight w/ Std. Accessories, Dry | 1,018 lbs | 461 kg |
Emissions | Euro V / EEV | |
Fuel Types | CNG / LNG / Biomethane Methane number 65 or greater |
Cummins Westport engines can accept a wide range of natural gas fuel compositions.
Use our Fuel Performance Specification Calculator to ensure compatibility.
Model | Advertised Horsepower | Peak Torque @ 1,600 rpm |
BG-230 | 230 hp (172 kW) @ 2,800 rpm | 500 lb-ft (678 N•m) |
BG-200 | 200 hp (149 kW) @ 2,800 rpm | 465 lb-ft (631 N•m) |
BG-195 | 195 hp (145 kW) @ 2,800 rpm | 420 lb-ft (570 N•m) |
Overall, maintenance for the B Gas Plus is similar to that of diesel engines, but there are a few key differences:
DISTANCE | Hours | Months | |
Oil and Filter* | 6,000 mi (10,000 km) | 250 | 3 |
Fuel Filter | 24,000 mi (38,000 km) | 1,000 | 12 |
Valve Adjustment | 24,000 mi (38,000 km) | 1,000 | 12 |
Spark Plugs (≥ 200hp) | 24,000 mi (38,000 km) | 1,000 | 12 |
Spark Plugs (≤ 195 hp) | 36,000 mi (57,500 km) | 1,500 | 18 |
Change Coolant | 48,000 mi (77,000 km) | 2,000 | 24 |
*Requires Natural Gas Engine Oil |