Why Choose This International ProStar Coolant Reservoir
This coolant reservoir is designed to replace a worn, cracked, leaking, or damaged factory tank on compatible International trucks. It includes the coolant level sensor and reservoir cap, helping restore the cooling system reservoir assembly with the key components needed for replacement.
Features include:
- Fits 2008-2018 International ProStar
- Quality injection molded plastic construction
- Pressurized coolant reservoir design
- Coolant level sensor included
- Reservoir cap included
- Direct replacement for listed OEM part numbers
- Also fits select International truck models
- 6-month warranty
Key Features & Benefits
Pressurized Coolant Reservoir Replacement
This reservoir is designed as a replacement coolant tank for compatible International truck cooling systems.
Features include:
- Pressurized reservoir design
- Replacement for factory coolant tank applications
- Designed for compatible International trucks
- Helps replace damaged or aging reservoir assemblies
Confirm your original tank style and OEM part number before ordering.
Coolant Level Sensor Included
The included coolant level sensor helps complete the replacement setup.
Features include:
- Coolant level sensor included
- Designed for compatible factory sensor applications
- Helps replace the reservoir and sensor together
- Useful when servicing aging cooling system components
Always verify electrical connector compatibility with your truck before installation.
Reservoir Cap Included
This product includes the reservoir cap.
Features include:
- Reservoir cap included
- Matched to the supplied reservoir assembly
- Helps complete the replacement tank setup
- Reduces need to reuse an old cap
Pressure rating is not listed in the supplied product information, so confirm cap requirements before installation if your truck has specific cooling system needs.
Injection Molded Plastic Construction
The reservoir is made from quality injection molded plastic.
Features include:
- Injection molded plastic construction
- Designed for coolant reservoir use
- Replacement-style tank design
- Built for compatible International applications
This makes it a practical replacement for cracked, stained, leaking, or damaged coolant reservoirs.
Performance, Compatibility & Use Case
International Truck Compatibility
This coolant reservoir fits International ProStar trucks from 2008-2018.
Also fits select International 9900i, 9400i, 8600, 7700, 7600, and 5900 applications. Confirm fitment by truck model, year, engine configuration, existing reservoir style, and OEM part number before ordering.
OEM Replacement Part Numbers
This coolant reservoir is listed as a direct replacement for OEM part numbers:
- 2598740C91
- 3599401F93
- 2593904C91
Use the OEM part number to help verify fitment before installation.
Application & Use Case
Designed for:
- International ProStar coolant reservoir replacement
- Coolant tank replacement
- Cooling system service
- Fleet maintenance
- Replacing cracked or leaking reservoirs
- Trucks needing a reservoir, cap, and level sensor assembly
This is a practical replacement part for keeping compatible International truck cooling systems properly serviced.
Installation & Technical Details
Installation Overview
This pressurized coolant reservoir is designed for compatible International truck applications and includes the cap and coolant level sensor.
Installation details:
- Vehicle fitment: 2008-2018 International ProStar
- Additional fitment: Select International 9900i, 9400i, 8600, 7700, 7600, and 5900 trucks
- Product type: Pressurized coolant reservoir
- Material: Injection molded plastic
- Cap: Included
- Coolant level sensor: Included
- OEM replacement numbers: 2598740C91, 3599401F93, 2593904C91
- Warranty: 6 months
Professional installation is recommended. Always allow the cooling system to cool fully before removing a pressurized reservoir or cap.
Build Quality, Materials & Warranty
Build Quality
This coolant reservoir is built as a replacement assembly for compatible International truck applications.
Key details:
- Quality injection molded plastic
- Pressurized coolant reservoir design
- Reservoir cap included
- Coolant level sensor included
- Direct replacement for listed OEM part numbers
Warranty Coverage
This product includes a 6-month warranty.
What’s Included
Included:
- 1 × Pressurized Coolant Reservoir
- 1 × Reservoir Cap
- 1 × Coolant Level Sensor
Not listed as included:
- Mounting hardware
- Coolant
- Hoses
- Clamps
Frequently Asked Questions About International ProStar Coolant Reservoirs
Does this fit the International ProStar?
Yes. This coolant reservoir is designed for 2008-2018 International ProStar trucks.
Confirm your existing reservoir style and OEM part number before ordering.
What other International models does this fit?
The supplied product information states that it also fits select International 9900i, 9400i, 8600, 7700, 7600, and 5900 trucks.
Model-year ranges for those additional applications are not listed, so confirm fitment before ordering.
Is the coolant level sensor included?
Yes. The coolant level sensor is included.
Check your truck’s connector style before installation to confirm compatibility.
Is the reservoir cap included?
Yes. The reservoir cap is included.
The supplied product information does not list the cap pressure rating, so verify requirements if your application needs a specific rating.
What material is this reservoir made from?
This coolant reservoir is made from quality injection molded plastic.
It is designed as a replacement tank for compatible International truck applications.
What OEM part numbers does this replace?
This reservoir directly replaces OEM part numbers 2598740C91, 3599401F93, and 2593904C91.
Use your original part number to confirm fitment before ordering.
Are hoses or clamps included?
Hoses and clamps are not listed as included.
This listing includes the reservoir, reservoir cap, and coolant level sensor.
Can I install this myself?
Installation depends on your experience with cooling system service.
Because the cooling system is pressurized and can be hot, professional installation is recommended. Always let the system cool completely before service.
What warranty is included?
This product includes a 6-month warranty.
Warranty coverage applies according to the seller or manufacturer warranty terms.
















