Arctic Cat 350/366 series

Differential fluid capacity & service interval

Arctic Cat 350/366 series vehicles require differential fluid with a capacity range of 250 to 275 CM3. The service interval for fluid replacement is 48 months. The data covers 4 configurations.

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

TypeSpecifications
  • 350 4x4 (2011-2012)
  • Front
  • Use: Normal
  • Capacity 275 CM3
  • Change 48 months
  • Code: (4x4)
  • 350 4x4 (2011-2012)
  • Rear
  • Use: Normal
  • Capacity 250 CM3
  • Change 48 months
  • 366 4x4 (2008-2010)
  • Front
  • Use: Normal
  • Capacity 275 CM3
  • Change 48 months
  • Code: (4x4)
  • 366 4x4 (2008-2010)
  • Rear
  • Use: Normal
  • Capacity 250-275 CM3
  • Change 48 months

Additional Notes

  • The front differential on both the 350 4x4 (2011-2012) and the 366 4x4 (2008-2010) carries an identical service fill capacity of 275 CM3, indicating a shared housing volume across the two engine families despite their displacement differences.
  • The rear differential on the Arctic Cat 350 4x4 (2011-2012) holds a fixed capacity of 250 CM3, which is 25 CM3 less than the front differential fill on the same configuration.
  • The rear differential on the 366 4x4 (2008-2010) is specified with a capacity range of 250-275 CM3 rather than a fixed value, reflecting a tolerance band during service fill rather than a single target volume.
  • All four differential positions across both configurations share a 48-month fluid change interval under normal use conditions, placing differential service on a four-year cycle rather than an annual or mileage-based schedule.

Other Systems