2021 International HV Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

13 Coolant / Antifreeze parts are listed for the 2021 International HV, from PRESTONE, VALVOLINE and PEAK. PRESTONE AF3100 carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, PRESTONE and VALVOLINE supply 2 parts: the catalog's value-priced group. A representative part number is PRESTONE AF3100.

The Heavy Duty section lists 7 options from PRESTONE, VALVOLINE and PEAK — rated for severe service. VALVOLINE ZXG051 is listed in this group.

The Premium section lists 2 options from PRESTONE — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 1 option from VALVOLINE — built to original-equipment specification. VALVOLINE ZX001 is listed in this group.

This table covers the Coolant filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

3 Coolant Filter parts are listed for the 2021 International HV, from WIX and HASTINGS / BALDWIN.

This group includes HASTINGS / BALDWIN LOPRI, WIX 24070 and WIX 24084.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

2 Coolant Reservoir Cap parts for the 2021 International HV come from 2 brands — GATES and MOTORAD.

Part numbers include GATES 31405 and MOTORAD T39.

This table covers the Hose clamps. Read more

One part is listed for the 2021 International HV — DORMAN 9044000.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

2 Intercooler parts are listed for the 2021 International HV, from GPD and SPECTRA PREMIUM.

This group includes GPD 2711478 and SPECTRA PREMIUM 44013517.

This table covers the Intercooler Air Hose pipes. Read more

5 Intercooler Air Hose / Pipe parts are listed for the 2021 International HV, from GATES and CONTINENTAL.

Listed part numbers: CONTINENTAL 57504, CONTINENTAL 57513 and GATES 26200, plus the other parts above.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

3 Radiator parts are listed for the 2021 International HV, from GPD and SPECTRA PREMIUM.

Economy: 1 part, from GPD. A representative part number is GPD 9282772.

The Standard Replacement section: 1 option from SPECTRA PREMIUM. SPECTRA PREMIUM 20013534 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This group includes GPD 9282772 and SPECTRA PREMIUM 20013534 and the remaining parts above.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

This group shows a single part: CONTINENTAL 60832.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

5 Thermostat parts for the 2021 International HV come from 4 brands — CALORSTAT, GATES, HOLSTEIN and 1 other brand.

Heavy Duty: 1 part, from GATES. A representative part number is GATES 34308.

Standard Replacement: 1 part, from CALORSTAT. A representative part number is CALORSTAT TH713082J.

3 further parts sit outside the graded sections, with the same engine-level match.

Listed part numbers: GATES 34308 and CALORSTAT TH713082J, plus the other parts above.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

2 Water Pump parts for the 2021 International HV come from 2 brands — GATES and DAYCO.

The High Volume / Pressure section lists 1 option from GATES — grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. GATES 43570HD is listed in this group.

Standard Replacement: 1 part, from DAYCO. A representative part number is DAYCO DP1732.

This group includes GATES 43570HD and DAYCO DP1732.