This page lists 34 cooling system parts for the 2020 International HX, across 8 part types, covering both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2020 International HX, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Coolant / Antifreeze (8 parts), Thermostat (7 parts) and Water Pump (6 parts). The other 5 part types cover the remaining 13 parts.
The 2020 International HX was sold with both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. 16 parts fit every engine; the other 18 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2020 International HX cooling system parts are MOTORAD (5 parts), VALVOLINE (3 parts) and PRESTONE (3 parts), plus 9 more brands. Quality grades include Standard Replacement, Heavy Duty and Economy.
7 parts on this 2020 International HX page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including VALVOLINE ZXG051 (Coolant / Antifreeze) and SPECTRA PREMIUM 20013560P (Radiator). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2020 HX engines | ZXG051 | 🇺🇸 US 🇨🇦 CA | G05 Yellow1 Gallon | View on Amazon |
| PEAK Fits: all 2020 HX engines | FCA1GAL | 🇺🇸 US 🇨🇦 CA | Fleet Charge1 Gallon | View on Amazon |
| PEAK Fits: all 2020 HX engines | FXA1GAL | 🇺🇸 US 🇨🇦 CA | Final Charge Global1 Gallon | View on Amazon |
| PRESTONE Fits: all 2020 HX engines | AFC10000 | 🇺🇸 US 🇨🇦 CA | Command ESi PrechargedPurple | View on Amazon |
| PRESTONE Fits: all 2020 HX engines | AFC13000 | 🇺🇸 US 🇨🇦 CA | Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed | View on Amazon |
| PRESTONE Fits: all 2020 HX engines | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
| VALVOLINE Fits: all 2020 HX engines | 846439 | 🇺🇸 US 🇨🇦 CA | HD Nitrite Free Extended Life Yellow1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2020 HX engines | 861399 | 🇺🇸 US 🇨🇦 CA | G40 Pink1 Gallon | View on Amazon |
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.
8 Coolant / Antifreeze parts for the 2020 International HX come from 3 brands — VALVOLINE, PRESTONE and PEAK. The "Popular" part is VALVOLINE ZXG051. Every part fits both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged.
In the Heavy Duty grade, PRESTONE, VALVOLINE and PEAK supply 7 parts: rated for severe service. A representative part number is VALVOLINE ZXG051.
In the Standard Replacement grade, VALVOLINE supplies 1 part: built to original-equipment specification. A representative part number is VALVOLINE 861399.
This group includes VALVOLINE ZXG051, PEAK FCA1GAL and PEAK FXA1GAL and the remaining parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: all 2020 HX engines | 31405 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD Fits: all 2020 HX engines | T39 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
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.
2 Coolant Reservoir Cap parts are listed for the 2020 International HX, from GATES and MOTORAD. All of them fit every engine offered in the 2020 HX.
Listed part numbers: GATES 31405 and MOTORAD T39.
Hose Clamp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2020 HX engines | 9044000 | 🇺🇸 US 🇨🇦 CA | 1.75" DiameterCoolant | View on Amazon |
This table covers the Hose clamps.
This group shows a single part: DORMAN 9044000.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 12.4L L6 DIESEL Turbocharged | 57504 | 🇺🇸 US 🇨🇦 CA | Convoluted Charge Air | View on Amazon |
| CONTINENTAL Fits: all 2020 HX engines | 57513 | 🇺🇸 US 🇨🇦 CA | Convoluted Charge Air | View on Amazon |
| GATES Fits: 12.4L L6 DIESEL Turbocharged | 26200 | 🇺🇸 US 🇨🇦 CA | Turbocharger Hose (Ring-Retained)Straight Hose | View on Amazon |
This table covers the Intercooler Air Hose pipes.
3 Intercooler Air Hose / Pipe parts for the 2020 International HX come from 2 brands — CONTINENTAL and GATES. 1 part fits every engine; the other 2 are engine-specific.
Part numbers include CONTINENTAL 57504, CONTINENTAL 57513 and GATES 26200.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2020 HX engines | 9282773 | 🇺🇸 US 🇨🇦 CA | with 34 In Core Heightwithout Frame | View on Amazon |
| GPD Fits: all 2020 HX engines | 9282774 | 🇺🇸 US 🇨🇦 CA | with Original Equipment (OE) # 2516107C91with 34 In Core Height | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular Fits: all 2020 HX engines | 20013560P | 🇺🇸 US 🇨🇦 CA | Aluminum Core with Plastic Tanks | View on Amazon |
| SPECTRA PREMIUM Fits: all 2020 HX engines | 20013560 | 🇺🇸 US 🇨🇦 CA | Aluminum Core / Aluminum Tank | View on Amazon |
| SPECTRA PREMIUM Fits: 14.9L L6 DIESEL Turbocharged | 20013562P | 🇺🇸 US 🇨🇦 CA | Aluminum Core with Plastic Tanks | View on Amazon |
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.
5 Radiator parts for the 2020 International HX come from 2 brands — SPECTRA PREMIUM and GPD. The "Popular" part is SPECTRA PREMIUM 20013560P. 4 parts fit every engine; the other 1 is engine-specific.
The Economy section lists 2 options from GPD — the catalog's value-priced group. GPD 9282773 is listed in this group.
Standard Replacement: 3 parts, from SPECTRA PREMIUM. A representative part number is SPECTRA PREMIUM 20013560P.
Listed part numbers: SPECTRA PREMIUM 20013560P, GPD 9282773 and GPD 9282774, plus the other parts above.
Thermostat
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 14.9L L6 DIESEL Turbocharged | 34148 | 🇺🇸 US 🇨🇦 CA | Heavy-Duty | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular Fits: 14.9L L6 DIESEL Turbocharged | 406190 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| CALORSTAT Fits: 14.9L L6 DIESEL Turbocharged | THS1910582 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT Fits: 14.9L L6 DIESEL Turbocharged | THS1910588 | 🇺🇸 US 🇨🇦 CA | Does not include seal | View on Amazon |
| MOTORAD Fits: 14.9L L6 DIESEL Turbocharged | 406160 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| MOTORAD Fits: 14.9L L6 DIESEL Turbocharged | 407825 | 🇺🇸 US 🇨🇦 CA | 225 Degrees Ffor Engine Oil Cooler System | View on Amazon |
| MOTORAD Fits: 14.9L L6 DIESEL Turbocharged | 406180 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
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.
7 Thermostat parts are listed for the 2020 International HX, from MOTORAD, CALORSTAT and GATES. GATES 34148 carries the "Popular" badge.
The Heavy Duty section: 1 option from GATES. GATES 34148 is listed in this group.
The Standard Replacement section: 6 options from MOTORAD and CALORSTAT. MOTORAD 406190 is listed in this group.
This group includes GATES 34148, MOTORAD 406190 and CALORSTAT THS1910582 and the remaining parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 6745003G | 🇺🇸 US 🇨🇦 CA | Housing to Flange | View on Amazon |
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 6745008G | 🇺🇸 US 🇨🇦 CA | Housing to Cylinder Head | View on Amazon |
This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2020 International HX come from DORMAN.
This group includes DORMAN 6745003G and DORMAN 6745008G.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GMB Popular Fits: 14.9L L6 DIESEL Turbocharged | 1962230 | 🇺🇸 US 🇨🇦 CA | without Water Pump HousingTwo-Piece Pump | View on Amazon |
| GMB Popular Fits: 14.9L L6 DIESEL Turbocharged | 1962230AH | 🇺🇸 US 🇨🇦 CA | Two-Piece Pumpwith Water Pump Housing | View on Amazon |
| FVP Fits: 14.9L L6 DIESEL Turbocharged | 1961020 | 🇺🇸 US 🇨🇦 CA | One-Piece Pump | View on Amazon |
| FVP Fits: 14.9L L6 DIESEL Turbocharged | 1962230 | 🇺🇸 US 🇨🇦 CA | without Water Pump HousingTwo-Piece Pump | View on Amazon |
| FVP Fits: 14.9L L6 DIESEL Turbocharged | 1962230AH | 🇺🇸 US 🇨🇦 CA | Two-Piece Pumpwith Water Pump Housing | View on Amazon |
| GMB Fits: 14.9L L6 DIESEL Turbocharged | 1961020 | 🇺🇸 US 🇨🇦 CA | One-Piece Pump | View on Amazon |
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.
6 Water Pump parts are listed for the 2020 International HX, from GMB and FVP. GMB 1962230 carries the "Popular" badge.
This group includes GMB 1962230, GMB 1962230AH and FVP 1961020 and the remaining parts above.
Buying Cooling System Parts for a 2020 International HX
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Match the engine first. Some cooling system parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Thermostat .
Frequently Asked Questions
How many cooling system parts fit the 2020 International HX?
Our catalog currently lists 34 cooling system parts for the 2020 International HX across 8 subcategories and 12 brands, covering both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2020 International HX engines?
Some do. 16 parts fit every engine; the other 18 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2020 International HX?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 International HX was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2020 International HX?
First match the engine — each row shows which engine(s) the part fits. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 International HX
Cooling System Parts for Other International HX Years
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