Peterbilt Vocational trucks

Coolant capacity & service interval

Peterbilt Vocational trucks utilize coolant with capacities ranging from 12,4 to 47 liters. Service intervals include 30000 miles, 60000 miles, 240000 miles, 300000 miles, 600000 miles, 750000 miles, 24 months, 72 months, 96 months, 2000 hours, 6000 hours, 12000 hours, and 15000 hours. The data covers 6 configurations.

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

TypeSpecifications
520, Paccar MX-11 (2016- )
  • Use: Normal
  • Capacity 47 liter (Engine only)
  • Change 750000 miles/ 12000 hours
520, Paccar MX-11 (2016- )
  • Use: Alternative (acceptable)
  • Capacity 47 liter (Engine only)
  • Change 600000 miles/ 72 months
520, Paccar MX-11 (2016- )
  • Use: Off-Highway use
  • Capacity 47 liter (Engine only)
  • Change 96 months/ 15000 hours
320, Paccar PX-9 (2013-2017)
  • Use: Normal
  • Capacity 15,6 liter (Engine only)
  • Check 30000 miles
  • Change 240000 miles
320, Cummins ISX12 G (2013-2017)
  • Use: Normal
  • Capacity 25,1 liter
  • Change 300000 miles/ 6000 hours/ 24 months
320, Cummins ISL G (2009-2013)
  • Use: Normal
  • Capacity 12,4 liter
  • Change 60000 miles/ 24 months/ 2000 hours