Case - IH Maxxum CVX

Coolant capacity & service interval

Case IH Maxxum CVX coolant capacity is 21 liters. Service intervals include checks every 10 hours and changes every 48 months or 3600 hours. The data covers 10 configurations.

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

TypeSpecifications
Maxxum 115 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 125 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 135 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 145 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 150 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 115 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 125 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 135 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 145 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours
Maxxum 150 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 21 liter
  • Check 10 hours
  • Change 48 months/ 3600 hours

Additional Notes

  • All Case IH Maxxum CVX configurations covered here — spanning the 115, 125, 135, 145, and 150 power variants — share a uniform cooling system capacity of 21 liters, regardless of emission standard or model year.
  • A 21-liter cooling system capacity is consistent with a large agricultural tractor engine, where substantial coolant volume is needed to manage heat across extended field operation cycles.
  • The change interval is specified as 48 months or 3,600 hours under normal use conditions, with whichever limit is reached first serving as the service trigger. In agricultural equipment, time-based limits matter because tractors may accumulate relatively few engine hours per calendar year during off-season periods.
  • 3,600 hours is a notably long drain interval for coolant, reflecting the use of extended-life coolant formulations common in modern agricultural machinery. These formulations use organic acid technology (OAT) or similar chemistry that resists degradation over longer service periods compared to conventional coolants.
  • The check interval of 10 hours applies under normal use conditions across all listed configurations. In tractor operation, a 10-hour check interval aligns roughly with daily inspection routines during active field seasons.
  • Tier 4b/Stage IV and Stage V variants of the same power model — for example, the Maxxum 115 CVX in both emission tiers — carry identical cooling system specifications, indicating no change in cooling system architecture between the two emission standards for the Maxxum CVX line.
  • Tier 4b and Stage IV are parallel emission standards from the United States EPA and the European Union respectively, both targeting the same generation of diesel engine emissions reduction. Stage V represents a subsequent European standard with stricter particulate number limits, yet the cooling capacity and service intervals remain unchanged across the transition in all listed models.

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