Detroit Diesel 2-Cycle

A Legacy of Excellence

The craftsmanship of Detroit Diesel 2-Cycle engines is a reflection of our strong heritage in the diesel engine business. Our two ancestral companies – MTU Friedrichshafen in Germany and Detroit Diesel Corporation in the United States – are long-time dominant forces in diesel engine innovation and manufacturing.

Four engines make up this “Classic” series of Detroit Diesel 2-Cycle engines:

  • Series 53
  • Series 71
  • Series 92
  • Series 149

These engines have a long history that dates back to the late 1930s, when the company was founded by General Motors as GM Diesel. Since then, they have powered entire industries, including construction, agricultural, marine, oil and gas, mining, rail, power generation and defense.

Full support. For full performance.
We are proud of our Detroit Diesel 2-Cycle history, and unwavering in our commitment to providing a full range of support, including:

  • Maintenance products – prolong engine life and maximize performance with our full range of consumables
  • Genuine parts – uphold engine quality with components manufactured to proprietary original equipment specifications
  • Long Block Assemblies – rebuild from a solid foundation that’s designed, tested and approved by OEM engineers
  • Long Block Engine Kits – get everything you need in one powerful package
  • Service network – rely on local support, worldwide, from over 1,200 certified service locations around the globe

The only genuine option.
Only MTU can ensure genuine Detroit Diesel 2-Cycle quality, performance and service life. No other engine builder has access to proprietary Detroit Diesel 2-Cycle original equipment specifications, or our insight into ongoing product modifications and updated standards.

How do 2-Cycle and 4-Cycle differ?
2-Cycle (also referred to as two stroke) internal combustion engines are simpler mechanically than 4-Cycle engines, yet feature more complex processes. Every Detroit Diesel 2-Cycle engine works in two strokes. A stroke is a single sweep of the cylinder by the piston (upward or downward). Intake, compression, power and exhaust occur in two strokes, comprising one crankshaft rotation. A 4-Cycle (or four stroke) engine normally requires four strokes during two rotations to perform these four functions. It is important to note that there is more than one function occurring at any given time during the 2-Cycle engine’s operation, for example, simultaneous intake and exhaust strokes.

Warranty coverage

Our Detroit Diesel 2-Cycle long block engine kits are covered worldwide by a 12-month, unlimited miles/hours warranty. New and remanufactured service parts have a 12-month, unlimited miles/hours warranty, which is honored at any authorized MTU service location around the world.

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