01 October 2021

The latest Cummins B6.7 Performance Series engine exceeds expectations, delivering market leading Tier 4 Final and Stage V power, with near-zero emission levels of NOx and PM. In addition, the engine now also features Cummins Stop-Start capabilities, helping operators reduce running costs, environmental impact and noise for improved sociability.

As many machines sit idling on construction sites for long periods in between tasks, Stop-Start significantly reduces running costs (up to 10% on fuel savings), CO2 emissions and running hours for equipment, helping maintain higher residual values. Stop-Start is also ideal for contractors looking to reduce noise and exhaust emissions on-site, making it ideal for use in urban settings.

The 6-cylinder B6.7 engine is available from 116-243 kW (155-326 hp) with a high peak torque of 1375 Nm. With a low weight and compact size, it delivers a high-power density that enables it to replace engines of higher displacement with no impact on machine operation. This supports machines needing higher-speed power delivery, with low-end torque capability for transient performance benefits. Equipment manufacturers can use the B6.7 to improve machine capability and offer more value to their customers.

The B6.7 engine is combined with the Cummins Single Module™ after-treatment system to meet and exceed the ultra-low emissions levels demanded by Tier 4 Final and Stage V. The efficient SCR technology means that cooled exhaust gas recirculation (EGR) is not needed on the engine. Having no EGR means that the engine is lower weight and has a simpler design, allowing for easier installation into equipment; together with lower cooling requirements. The simpler configurations also mean better reliability, reducing the total cost of operation and boosting availability.

Stop-start has been integrated into the B6.7 platform with both hardware and software changes. Specially developed bearings in the engine, along with upgrades to the flywheel ring gear and starter motor, ensure long life and reliable performance with frequent starts. The engine system has been thoroughly tested to confirm its durability for the rigors of Stop-Start operations.

This product is ideal for use in a range of off-road equipment including crushers, screeners, wheel loaders, excavators, fork-lift trucks, terminal tractors, and empty container handlers. It can be tailored by Cummins’ engineers mechanically and electronically to each machine type. This powertrain integration capability delivers the best all-around performance and running costs to match the required operating cycle.

Find out more about Cummins Performance Series at

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Mike Brezonick VP, Power Division Tel: +1 262 754 4112 E-mail:
Alister Williams VP Sales Tel: +1 843 637 4127 E-mail:
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