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Cummins X12 redefines the entire medium-bore engine category (10L-13L), setting new standards for productivity in regional-haul, vocational and intermodal truck applications. It’s performance that is not just unchallenged – it’s unbeatable. Smaller in size – at least 150 pounds lighter than the next closest competitive engine and up to 600 pounds lighter than other medium bore engines – the X12 still delivers powerful performance from 350 hp to 475 hp and 1250 to 1700 lb-ft of peak torque. At just 2,050 pounds, it has the highest power-to-weight ratio of any heavy-duty engine from 10 liters to 16 liters in size. The combination of power and efficiency is striking. You can gear the X12 to pass traffic in the left lane and still have plenty of fuel left in the tank for every job.

Specs

Key Specifications
Advertised Horsepower 350-475 (261-354 KW)
Peak Torque 1250-1700 lb-ft (1695-2305 N•m)
Governed Speed 2000 rpm
Clutch Engagement Torque 800 lb-ft (1085 N•m)
Number of Cylinders 6
System Weight 2,241 lb (1,017 kg)

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