![](https://www.cumminsdkshthailand.com/wp-content/uploads/2024/02/2017_B67-72.png)
B6.7N (2018)
Power
200 - 240 hp
Torque
520 - 560 lb-ft
Certification
EPA 2018
Applications
PRODUCT Detail
Overview
Specifications
Features
Brochures
Cummins introduces the new B6.7N natural gas engine for the school bus, shuttle, and medium-duty truck markets. Rated up to 240 hp / 560 lb-ft torque, the B6.7N offers a reliable, low-emissions, and low cost option for your fleet. The B6.7N is certified to California Air Resources Board Optional Low NOx standard of 0.02 g/bhp-hr – 90% lower
NOx emissions than current EPA regulations.
- 100% natural gas engine, featuring spark-ignited stoichiometric combustion with cooled EGR and a maintenance-free Three-Way Catalyst
- Closed Crankcase Ventilation (CCV) system and On-Board Diagnostics for optimal emissions performance
- Certified to California Air Resources Board Optional Low NOx 0.02 g/bhp-hr – 90% lower
current EPA standard); exceeds 2017 EPA GHG requirements - Cost-efficient and reliable performance
NOx emission | 0.02 g/bhp-hr (90% below EPA) |
Maximum Horsepower | 240 HP / 179kW |
Peak Torque | 560 lb-ft / 759 Nm |
Governed Speed | 2400 RPM |
Type | 4-cycle, spark-ignited, in-line 6 cylinder, turbocharged, CAC |
Engine Displacement | 409 CU IN / 6.7 Liters |
Number of Cylinders | 6 |
Operating Cycles | 4 |
Net Weight (Dry) | 1,150 lb / 522 KG |
Fuel Type | CNG / LNG / Biomethane |
Aftertreatment | Three-way Catalyst |
Base Warranty | 2 years, Unlimited Miles |
- Electronic Control Module: A new engine control module, CM2380, provides full monitoring and control of the engine sensors, and the fuel and ignition systems. It offers faster processing to support heavy duty On-Board Diagnostics requirements (500K baud rate). It is also telematics capable, and provides improved diagnostics and durability.
- On-Board Diagnostics (OBD): The OBD system continuously monitors the engine and after-treatment system. It gives the vehicle owner or repair technician electronic access to the status of various vehicle subsystems for diagnostic purposes.
- Closed Crankcase Ventilation (CCV) system: The CCV system reduces engine emissions by capturing crankcase emissions and rerouting these gases back to the engine. This results in more complete combustion and lower emissions.
- Enhanced Three-Way Catalyst (TWC): TWCs are effective, simple, passive devices. They provide consistent emissions control performance, are maintenance-free and can be mounted vertically or horizontally on the vehicle. No active aftertreatment such as a diesel particulate filter or selective catalytic reduction is required.
- High-Energy Ignition System: A new Ignition Control Module (ICM) provides better performance and improved spark plug and coil durability, plus self-diagnostics.
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