2012 International Lonestar Cooling System Parts

Engine:
14.9L L6 DIESEL Turbocharged

57 Cooling system parts are listed for the 2012 International Lonestar, in 15 part types, covering the 14.9L L6 DIESEL Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.

The cooling system system on the 2012 International Lonestar keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Thermostat (10 parts), Water Pump (10 parts) and Coolant / Antifreeze (8 parts). The other 12 part types cover the remaining 29 parts.

Coolant / Antifreeze

Economy

Brand Part Number Markets Notes Buy
VALVOLINE Popular 719009
🇺🇸 US 🇨🇦 CA
Multi-Vehicle Yellow1 Gallon
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Heavy Duty

Brand Part Number Markets Notes Buy
VALVOLINE Popular ZXG051
🇺🇸 US 🇨🇦 CA
G05 Yellow1 Gallon
Fitment notes — VALVOLINE ZXG051
G05 Yellow1 GallonFully Formulated Heavy DutyHOAT
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PEAK FCA1GAL
🇺🇸 US 🇨🇦 CA
Fleet Charge1 Gallon
Fitment notes — PEAK FCA1GAL
Fleet Charge1 GallonFLEET CHARGE 1 GALLON
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PEAK FXA1GAL
🇺🇸 US 🇨🇦 CA
Final Charge Global1 Gallon
Fitment notes — PEAK FXA1GAL
Final Charge Global1 GallonFINAL CHARGENITRITE FREEGLOBAL EXTENDED LIFE 1 GALLON
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PRESTONE AFC10000
🇺🇸 US 🇨🇦 CA
Command ESi PrechargedPurple
Fitment notes — PRESTONE AFC10000
Command ESi PrechargedPurple1 Gallon
Heavy Duty Extended Service Interval SCA Pre-Charged CoolantPurple Fluid Class 6 - 8
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PRESTONE AFC13000
🇺🇸 US 🇨🇦 CA
Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed
Fitment notes — PRESTONE AFC13000
Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed1 Galloncon
Class 8 Applications
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PRESTONE AFC12100
🇺🇸 US 🇨🇦 CA
Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT
Fitment notes — PRESTONE AFC12100
Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT1 GAL Ready To Use 50/50
Heavy Duty & Mixed Fleet Nitrite Free Extended Life CoolantYellow Fluid Class 1 - 8
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VALVOLINE ZXED1
🇺🇸 US 🇨🇦 CA
HD Extended Life Red1 Gallon
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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.

Coolant Filter

Brand Part Number Markets Notes Buy
WIX Popular 24113
🇺🇸 US
Coolant Spin-On Filter
Fitment notes — WIX 24113
Coolant Spin-On Filter
without Chemical Additive
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FAMOUS BRAND 89113
🇺🇸 US 🇨🇦 CA
CoolantOE Number : WF2127
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HASTINGS / BALDWIN WC23
🇺🇸 US 🇨🇦 CA
Spin-On
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HASTINGS / BALDWIN WC11
🇺🇸 US 🇨🇦 CA
View on
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WIX 24112
🇺🇸 US
Coolant Spin-On Filter
Fitment notes — WIX 24112
Coolant Spin-On Filter
with Chemical Additive
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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.

Coolant Reservoir

Brand Part Number Markets Notes Buy
GPD 2421012
🇺🇸 US 🇨🇦 CA
View on
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This table covers the overflow / expansion tanks that hold extra coolant.

Coolant Reservoir Cap

Brand Part Number Markets Notes Buy
DORMAN 9025102
🇺🇸 US 🇨🇦 CA
with 15 Lb. Cap
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MOTORAD T39
🇺🇸 US 🇨🇦 CA
Standard
Fitment notes — MOTORAD T39
Standard
Relief Pressure 15 lbs
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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.

Cooling System Tester Adapter

Brand Part Number Markets Notes Buy
GATES 31379
🇺🇸 US 🇨🇦 CA
Cooling System PressureRadiator Cap
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GATES 31410
🇺🇸 US 🇨🇦 CA
Cooling System Pressure
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MOTORAD 3132
🇺🇸 US 🇨🇦 CA
StandardRadiator Cap Adapter
Fitment notes — MOTORAD 3132
StandardRadiator Cap Adapter
Cooling System PressureRadiator Cap Adapter
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MOTORAD 3126
🇺🇸 US 🇨🇦 CA
Standard
Fitment notes — MOTORAD 3126
Standard
Cooling System Pressure
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This table covers the adapters used to pressure-test this cooling system.

Hose Clamp

Brand Part Number Markets Notes Buy
DORMAN 9044000
🇺🇸 US 🇨🇦 CA
1.75" DiameterCoolant
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This table covers the Hose clamps.

Intercooler

Brand Part Number Markets Notes Buy
GPD 2711618
🇺🇸 US 🇨🇦 CA
with Original Equipment (OE) # 2612895C91
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GPD 2711619
🇺🇸 US 🇨🇦 CA
with Original Equipment (OE) # 2612896C91
View on
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GPD 2711620
🇺🇸 US 🇨🇦 CA
with Original Equipment (OE) # 2601467C91
View on
Amazon

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

Intercooler Air Hose / Pipe

Brand Part Number Markets Notes Buy
CONTINENTAL 57513
🇺🇸 US 🇨🇦 CA
Convoluted Charge Air
Fitment notes — CONTINENTAL 57513
Convoluted Charge Air
Fits:
Pipe to Intercooler (Hot Side)
or:
Turbocharger To Intercooler (Hot Side)
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This table covers the Intercooler Air Hose pipes.

Radiator

Economy

Brand Part Number Markets Notes Buy
GPD 9282776
🇺🇸 US 🇨🇦 CA
Fits Plastic Aluminum OEM Radiator Onlywith Original Equipment (OE) # 2596325C91
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Standard Replacement

Brand Part Number Markets Notes Buy
OSC HD9288
🇺🇸 US 🇨🇦 CA
View on
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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.

Radiator Cap

Brand Part Number Markets Notes Buy
GATES 31567
🇺🇸 US 🇨🇦 CA
OE Type
Fitment notes — GATES 31567
OE Type
10 psi Pressure Rating
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MOTORAD 100410
🇺🇸 US 🇨🇦 CA
Heavy Duty Radiator Cap
Fitment notes — MOTORAD 100410
Heavy Duty Radiator Cap
Relief Pressure 10 lbs
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Amazon

This table covers the caps that hold system pressure at the radiator or reservoir neck. 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.

Radiator Hose

Standard Replacement

Brand Part Number Markets Notes Buy
DAYCO Popular 71813
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — DAYCO 71813
Molded
UpperEngine To PipeCut to fit
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CONTINENTAL 61577
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 61577
Molded
Upper
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CONTINENTAL 66552
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 66552
Molded
LowerPipe To RadiatorCut to fit
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DAYCO 71812
🇺🇸 US 🇨🇦 CA
Curved or Molded Hose or Straight Hose
Fitment notes — DAYCO 71812
Curved or Molded Hose or Straight Hose
Fits:
UpperPipe To RadiatorCut to fit
or:
LowerEngine To PipeCut to fit
or:
LowerPipe To RadiatorCut to fit
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Universal Hose (Straight, Bulk)

Brand Part Number Markets Notes Buy
CONTINENTAL 57040
🇺🇸 US 🇨🇦 CA
Heavy Duty Straight - Priced Per Foot
Fitment notes — CONTINENTAL 57040
Heavy Duty Straight - Priced Per Foot
LowerEngine To Pipe
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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.

Thermostat

Heavy Duty

Brand Part Number Markets Notes Buy
GATES Popular 34148
🇺🇸 US 🇨🇦 CA
Heavy-Duty
Fitment notes — GATES 34148
Heavy-Duty
180 DegreeSeal included
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GATES Popular 34146
🇺🇸 US 🇨🇦 CA
Heavy-Duty
Fitment notes — GATES 34146
Heavy-Duty
160 DegreeSeal Included
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GATES 34149
🇺🇸 US 🇨🇦 CA
Heavy-Duty
Fitment notes — GATES 34149
Heavy-Duty
190 DegreeSeal Included
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Standard Replacement

Brand Part Number Markets Notes Buy
CALORSTAT THS1910582
🇺🇸 US 🇨🇦 CA
PerformanceDoes Not Include Seal
Fitment notes — CALORSTAT THS1910582
PerformanceDoes Not Include Seal
180.0 F Degreeswith Narrower Main Valve
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CALORSTAT THS1910588
🇺🇸 US 🇨🇦 CA
Does not include seal
Fitment notes — CALORSTAT THS1910588
Does not include seal
190.0 Degreeswith Narrower Main ValveMetallic Valve Seat
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CALORSTAT THS1680171
🇺🇸 US 🇨🇦 CA
PerformanceDoes Not Include Seal
Fitment notes — CALORSTAT THS1680171
PerformanceDoes Not Include Seal
160.0 F Degreeswith Larger Main Valve
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MOTORAD 406160
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD 406160
Includes Seal
160 Degrees Ffor Engine Coolant SystemOE Specified Temperature 160 Degrees
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MOTORAD 406190
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD 406190
Includes Seal
190 Degrees Ffor Engine Coolant SystemOE Specified Temperature
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MOTORAD 407825
🇺🇸 US 🇨🇦 CA
225 Degrees Ffor Engine Oil Cooler System
Fitment notes — MOTORAD 407825
225 Degrees Ffor Engine Oil Cooler SystemOE Specified Temperature
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MOTORAD 406180
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD 406180
Includes Seal
180 Degrees Ffor Engine Coolant SystemOE Specified Temperature
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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.

Thermostat / Thermostat Housing / Water Outlet Seal

Brand Part Number Markets Notes Buy
DAYTON 6745008G
🇺🇸 US 🇨🇦 CA
Housing to Cylinder Head
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DAYTON 6745003G
🇺🇸 US 🇨🇦 CA
Housing to Flange
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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.

Water Pump

Economy

Brand Part Number Markets Notes Buy
US MOTOR WORKS Popular US932
🇺🇸 US 🇨🇦 CA
ISX, ISZ12 Groove Pulley Complete Unit
Fitment notes — US MOTOR WORKS US932
ISX, ISZ12 Groove Pulley Complete UnitShort Bottom Outlet
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FVP US932
🇺🇸 US 🇨🇦 CA
ISX, ISZ (12 Groove Pulley) Complete Unit (Short Bottom Outlet)
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FVP US6344
🇺🇸 US 🇨🇦 CA
ISX (12 Groove Pulley)
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Standard Replacement

Brand Part Number Markets Notes Buy
GMB Popular 1962230
🇺🇸 US 🇨🇦 CA
without Water Pump HousingTwo-Piece Pump
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GMB 1962230AH
🇺🇸 US 🇨🇦 CA
Two-Piece Pumpwith Water Pump Housing
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GMB 1961020
🇺🇸 US 🇨🇦 CA
One-Piece Pump
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Amazon
Brand Part Number Markets Notes Buy
US MOTOR WORKS US93
🇺🇸 US 🇨🇦 CA
ISX, ISZ12 Groove Pulley Pump Only
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US MOTOR WORKS US6151
🇺🇸 US 🇨🇦 CA
ISX10 Groove Pulley
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US MOTOR WORKS US6344
🇺🇸 US 🇨🇦 CA
ISX12 Groove Pulley
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US MOTOR WORKS US933
🇺🇸 US 🇨🇦 CA
ISX, ISZ12 Groove Pulley Complete Unit
Fitment notes — US MOTOR WORKS US933
ISX, ISZ12 Groove Pulley Complete UnitLong Bottom Outlet
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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.

Water Pump Seal / O-Ring

Brand Part Number Markets Notes Buy
DORMAN 9045129
🇺🇸 US 🇨🇦 CA
View on
Amazon

This table covers the Water Pump Seal O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.

Buying Cooling System Parts for a 2012 International Lonestar

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.

  • Confirm you have the 14.9L L6 DIESEL Turbocharged engine — every part on this page is matched to it.
  • 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: Thermostat and Water Pump .

Frequently Asked Questions

How many cooling system parts fit the 2012 International Lonestar?

Our catalog currently lists 57 cooling system parts for the 2012 International Lonestar across 15 subcategories and 18 brands, covering the 14.9L L6 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.

What are the signs of cooling system problems on a 2012 International Lonestar?

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 2012 International Lonestar 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 2012 International Lonestar?

Every part on this page is matched to the 14.9L L6 DIESEL Turbocharged engine. 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 2012 International Lonestar

Cooling System Parts for Other International Lonestar Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.