5.9-Liter Cummins: Second Generation (Late 12-Valve, 1994-1998, P7100 Injection Pump) In 1994, the 5.9-liter Cummins was similar in many ways to the 1989-1993 engine.

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The 7.3 Power Stroke made 210 horsepower and 425 lb-ft of torque in its first year of 1994, and like the 5.9 Cummins, the 7.3 Power Stroke made gains in both respects as it aged.

The first-gen 5.9-liter Cummins (6BT) wasn't the only diesel engine available for light-duty pickup trucks, but it was a game changer that worked wonders for boosting sales of Ram trucks.