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International Radiator

48 items

Keep engine temperatures under control with an A-Premium radiator. Browse replacement cooling radiators and assemblies for cars, trucks and SUVs.

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Spectra Premium 2001-3503 RadiatorSpectra Premium 2001-3503 Radiator
SOLD OUT
Spectra PremiumPart # 2001-3503
Spectra Premium 2001-3503 Radiator
54 Reviews
$1,042.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2007-2007 International 7700, 2005-2005 International 5900i, 2004-2007 International 7600, 2003-2003 International 7300, 2003-2003 International 8600 SBA, 2002-2004 International 7400, 2002-2002 International 4400, 2001-2003 International 9900ix SFA, 2000-2003 International 9100i SBA, 2000-2003 International 9200i SBA, 2000-2003 International 9400i SBA, 2000-2003 International 9900i, 2000-2003 International 9900i SFA, 2000-2003 International 9900ix, 2000-2002 International 5500i, 2000-2002 International 5600i, 1999-2000 International 2654, 1999-2000 International 9900, 1999-1999 International 9900 SFA, 1998-1999 International 9100 SBA
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2001-3503, S6403FA, S6403FB, SRK7121, SRK7121F1, S6403PA, SRK71214SLH, S6043PA, 
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item #1000YQWA
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Spectra Premium 2001-3558 RadiatorSOLD OUT
Spectra PremiumPart # 2001-3558
Spectra Premium 2001-3558 Radiator
54 Reviews
$1,215.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2009-2012 International 7600, 2008-2012 International 7500, 2008-2012 International WorkStar 7600, 2008-2012 International WorkStar 7700, 2008-2011 International 7300, 2008-2011 International 7400
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2001-3558, 2596291C91, 640025, 640025ST, 640025PT, 238655, 437419P, 437419, 
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item #1000YQP3
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Spectra Premium 2001-3536 RadiatorSOLD OUT
Spectra PremiumPart # 2001-3536
Spectra Premium 2001-3536 Radiator
54 Reviews
$814.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2007-2007 International 4100, 2005-2007 International 4300, 2005-2007 International 4400
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2001-3536, 3E016250000, 3S016250000, 2586049C92, 2586419C91, 640023AP, 640023, 640023ST, 
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item #1000YQ3K
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Spectra Premium 2006-3521A RadiatorSOLD OUT
Spectra PremiumPart # 2006-3521A
Spectra Premium 2006-3521A Radiator
54 Reviews
$1,024.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2000-2002 International 3400, 2000-2002 International 4700LP, 2000-2000 International 2554, 2000-2000 International 9200 SBA, 1997-2004 International 3800, 1996-1998 International 3400, 1995-2002 International 1652SC, 1995-2002 International 4700, 1995-1998 International 4700LP, 1995-1997 International 1652UPS, 1995-1995 International 3600, 1995-1995 International 3800, 1984-1984 International 1955
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2006-3521A, S6473, 11944, 1697740C1, 1697742C1, 1697742C2, 2026621C91, 2026623C91, 
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item #1000YLYS
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Spectra Premium 2006-3506A RadiatorSOLD OUT
Spectra PremiumPart # 2006-3506A
Spectra Premium 2006-3506A Radiator
54 Reviews
$1,362.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2001-2001 International 4900, 1998-1998 International 3800, 1997-1998 International 4700LP, 1997-1997 International 8100, 1995-1995 International 4700LP, 1994-2000 International 4700, 1994-1999 International 4900, 1994-1995 International 3800, 1991-1991 International 4900, 1988-1988 International 2375 S
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2006-3506A, SRM2250M, FLX000735, S6457, 1A17882, 1A17882D, 1A19007D, 238520, 
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item #1000YK0Q
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Spectra Premium 2001-3543 RadiatorSOLD OUT
Spectra PremiumPart # 2001-3543
Spectra Premium 2001-3543 Radiator
54 Reviews
$1,382.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2015-2015 IC Corporation AE School Bus, 2012-2016 IC Corporation AC Commercial Bus, 2011-2015 International TerraStar
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2001-3543, FLA000798, 3S013049, 3E013049, 5A0763880000, 3E13048, 3E0130490000, 2606536C92, 
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item #1000YR0G
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Spectra Premium 2001-3534 RadiatorSOLD OUT
Spectra PremiumPart # 2001-3534
Spectra Premium 2001-3534 Radiator
54 Reviews
$1,212.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2008-2010 International 4100, 2008-2010 International 4400, 2008-2010 International 8500 TranStar
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2001-3534, FLX000791, FLA000791, 8070088, 2400222, 2593295C91, 2593295C92, 2593297C91, 
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item #1000YQ8P
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Spectra Premium 2001-3509P RadiatorSOLD OUT
Spectra PremiumPart # 2001-3509P
Spectra Premium 2001-3509P Radiator
54 Reviews
$1,477.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2008-2010 International WorkStar 7600, 2008-2010 International WorkStar 7700, 2005-2007 International 7700, 2003-2007 International 7600, 2002-2011 International 7500, 2002-2010 International 7300, 2002-2010 International 7400
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: International
Item LocatedUnited States
Quantity1
Part interchange
2001-3509P, SRM640011ST, FLX000758, 3S50787, 1S180074, 5A0672680000, 3A50272D, 3A50786D, 
...View more
item #1000YQLS
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Page 3 of 3

Car Radiator Design and Engine Cooling

Engine coolant carries heat away from the engine to the car radiator, where tubes and fins transfer it to passing air. Coolant circulation and airflow both matter. The water pump circulates coolant, the thermostat regulates its route, and the fans support airflow when needed.

Radiator Cooler Connections

For radiator replacement, cooling-system connections matter as much as the core itself. An automotive radiator may also contain a transmission-fluid or engine-oil heat exchanger. These separate fluid circuits require their own connections. Include the cooler arrangement when comparing replacement radiators.

What to Compare Beyond Radiator Dimensions

Core height, width, and thickness describe the heat-exchanger section, not necessarily the complete assembly. Tanks, mounting brackets, hose necks, and cooler fittings add to its overall size. Fan-shroud attachments also need to line up without pulling the radiator out of position.

Two design details help explain radiator descriptions:

  • Crossflow radiators have side tanks; downflow radiators have top and bottom tanks. The surrounding cooling system and available space determine the appropriate layout.
  • Core and tank materials are separate specifications. An aluminum core can be combined with different tank materials, so read both descriptions when comparing construction.

Radiator Assemblies and Related Cooling Parts

An assembly may be the radiator alone or a package with additional cooling components. A-Premium offers both individual radiators and selected radiator-and-fan combinations; the included-parts description establishes what comes in each package. Check the package contents for cooler connectors, caps, and mounting cushions.

The radiator, condenser, and fans sit close together but perform different tasks. A blocked air path can limit heat rejection even when the radiator does not leak. Before fitting a replacement, inspect the surrounding supports and air passages so bent brackets or trapped debris do not damage the new unit.

Frequently Asked Questions

Can a radiator flush repair a leaking radiator?

No. Flushing may remove some contamination, but it does not repair a cracked tank, damaged tube, or leaking joint. Locate the leak with the cooling system cold and have its repairability assessed before choosing cleaning or replacement.

Is plain water suitable for everyday radiator use?

Use the coolant specification and concentration required by the vehicle manufacturer. Plain water lacks the intended freeze and corrosion protection. Coolant color alone is not a reliable way to identify a compatible formula.

Should the pressure cap be replaced with the radiator?

Not automatically, but its seals and pressure function deserve attention. A damaged or incorrect cap can affect system operation. Some vehicles place the pressure cap on a separate reservoir, so order by the system's specified cap type and rating.

Why can an engine still overheat after radiator replacement?

Trapped air, a thermostat fault, poor coolant circulation, or an inoperative fan can remain after the radiator is changed. Stop driving if the temperature rises abnormally and diagnose the system rather than assuming the new radiator is defective.

When is it safe to open the cooling system?

Only after the engine and cooling system have cooled fully, following the owner's instructions. Hot coolant can remain pressurized and escape suddenly when a cap is loosened. Do not use the dashboard temperature reading alone as permission to open it.

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What Is a Radiator in a Car?

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How Much Does It Cost to Replace a Radiator?

Is your radiator on the fritz? Dive into our guide that outlines the warning signs, provides a step-by-step replacement tutorial, breaks down costs, and offers advice on picking the perfect radiator to ensure your ride stays cool and efficient.

Aug 17, 2026

How to Repair a Car Radiator

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Jul 21, 2026