Manitowoc Mobile cranes

Automatic transmission fluid capacity & service interval

Manitowoc mobile cranes require automatic transmission fluid with capacities ranging from 15,5 to 46 liters. The data covers 5 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
GMK5200-1, Mercedes-Benz OM471LA (2018- )
  • Use: Normal
  • Capacity 17,5 liter
  • Code: G280-16 16/4
GMK6300L, Mercedez-Benz OM926LA (2018- )
  • Use: Normal
  • Capacity 46 liter
  • Code: Allison
GMK6300L-1, Mercedez-Benz OM926LA (2018- )
  • Use: Normal
  • Capacity 46 liter
  • Code: Allison
GMK5150, Mercedes-Benz OM471LA (2017- )
  • Use: Normal
  • Capacity 16,5 liter
  • Capacity 15,5 liter (+ retarder)
  • Code: G280-16 16/4
GMK5150L, Mercedes-Benz OM471LA (2017- )
  • Use: Normal
  • Capacity 16,5 liter
  • Capacity 15,5 liter (+ retarder)
  • Code: G280-16 16/4

Additional Notes

  • The Manitowoc GMK5150 and GMK5150L, both equipped with the Mercedes-Benz OM471LA engine, share identical semi-automatic transmission fluid capacities: 16.5 liters without a retarder and 15.5 liters when a retarder is fitted.
  • The 1-liter reduction in capacity on the GMK5150 and GMK5150L when a retarder is present reflects the fluid volume already held within the retarder circuit, which is accounted for separately during a service fill.
  • The GMK5200-1, also powered by the Mercedes-Benz OM471LA, carries a semi-automatic transmission fluid capacity of 17.5 liters, which is 1 liter higher than the base GMK5150 figure and does not list a retarder variant capacity.
  • The GMK6300L and GMK6300L-1, fitted with the Mercedes-Benz OM926LA engine, use a fully automatic transmission rather than a semi-automatic unit, and both share a fluid capacity of 46 liters.
  • The 46-liter capacity on the GMK6300L and GMK6300L-1 is substantially higher than the semi-automatic transmission figures across the GMK5150 and GMK5200-1 configurations, consistent with the larger fluid reservoirs typical of heavy-duty fully automatic transmissions in high-capacity crane applications.
  • All five configurations list fluid capacity under normal use conditions, meaning the specified volumes apply to standard operating environments rather than severe-duty cycles.
  • The OM471LA engine appears across three crane models — GMK5150, GMK5150L, and GMK5200-1 — yet the transmission fluid capacities differ between them, indicating that transmission unit selection rather than engine type alone determines the service fill volume.

Other Systems