QSB6.7

Quiet operation, including an 80-percent reduction in noise at idle, is one of the many benefits from the common-rail fuel system
Enhanced sociability from the high-pressure common-rail design virtually eliminates smoke and improves the whole boating experience
Peace of mind delivered by the Cummins Captain’s Briefing and global service network
Built at Darlington Engine Plant in Darlington, U.K. and Rocky Mount Engine Plant in Rocky Mount, NC, U.S

Configuration	In-line, 6-cylinder, 4-stroke diesel
Aspiration	Turbocharged / Aftercooled
Displacement	6.7 L
Bore & Stroke	107 X 124 mm
Rotation	Counterclockwise facing flywheel
Fuel System	High Pressure Common Rail

Overall Length	1263.8 mm
Length of Block	748.0 mm
Overall Width	910.6 mm
Overall Height	857.0 mm
Weight	658 kg

Recreational Marine Propulsion Engines (Variable Speed Ratings)

Model	kW	MHP	BHP	Speed (RPM)	Rating	Emissions
QSB6.7	184	250	247	2600	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7	224	305	301	2600	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7	261	355	350	3000	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7 SL	261	355	350	3000	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7	279	380	375	3000	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7 SL	279	380	375	3000	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7	312	425	419	3000	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7 SL	312	425	419	3000	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7	353	480	473	3300	High Output	IMO 2 \| EPA 3 \| RCD 2
QSB6.7	405	550	542	3300	High Output	IMO 2 \| EPA 3 \| RCD 2

Commercial and Light Duty Marine Propulsion Engines (Variable Speed Ratings)

Model	kW	MHP	BHP	Speed (RPM)	Rating	Emissions
QSB6.7-SW	169	230	227	3000	Intermittent	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-SW	184	250	247	2600	Heavy Duty	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-KC	184	250	247	2600	Heavy Duty	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-SW	224	305	301	2600	Medium Continuous	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-KC	224	305	301	2600	Medium Continuous	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-SW	261	355	350	2800	Intermittent	IMO 2 \| EPA 3 \| EU 3a
QSB6.7 SL - SW	261	355	350	3000	Intermittent	IMO 2
QSB6.7-KC	261	355	350	3000	Intermittent	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-SW	280	380	375	3000	Intermittent	IMO 2 \| EPA 3 \| EU 3a
QSB6.7 SL - SW	280	380	375	3000	Intermittent	IMO 2
QSB6.7-SW	312	425	419	3000	Intermittent	IMO 2 \| EPA 3 \| EU 3a
QSB6.7 SL - SW	312	425	419	3000	Intermittent	IMO 2
QSB6.7-KC	312	425	419	3000	Intermittent	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-SW	353	480	473	3000	Intermittent	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-SW	353	480	473	3300	Government Services	IMO 2 \| EPA 3 \| EU 3a
QSB6.7-SW	404	550	542	3300	Government Services	IMO 2 \| EPA 3 \| EU 3a

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