Why Choose This International ProStar Cummins ISX Coolant Reservoir
This coolant reservoir is designed to replace a worn, cracked, leaking, or damaged factory reservoir on compatible International ProStar trucks with Cummins ISX engines. It includes the coolant level sensor and reservoir cap, helping simplify the cooling system repair with key components in one assembly.
Features include:
- Fits 2008-2018 International ProStar with Cummins ISX engines
- Quality injection molded plastic construction
- Pressurized coolant reservoir design
- Coolant level sensor included
- Reservoir cap included
- Also listed for select International 7300, 7400, and 7500 applications
- Direct replacement for listed OEM part numbers
- 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 Cummins ISX-equipped ProStar models
- Helps replace damaged or aging reservoir assemblies
Confirm your original reservoir style and OEM part number before ordering.
Coolant Level Sensor Included
The included coolant level sensor helps complete the replacement assembly.
Features include:
- Coolant level sensor included
- Designed for compatible factory sensor applications
- Useful when replacing the reservoir and sensor together
- Helps support proper coolant level monitoring
Always verify 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
- Reduces the need to reuse an old cap
- Helps complete the replacement tank setup
The cap pressure rating is not listed in the supplied product information, so confirm requirements before installation if your application requires a specific rating.
Injection Molded Plastic Construction
The reservoir is built from quality injection molded plastic.
Features include:
- Injection molded plastic construction
- Replacement-style tank design
- Designed for coolant reservoir use
- Built for compatible International applications
This makes it a practical replacement for cracked, leaking, stained, or worn coolant reservoirs.
Performance, Compatibility & Use Case
International Truck Compatibility
This coolant reservoir fits 2008-2018 International ProStar models with Cummins ISX engines.
It is also listed to fit select International 7300, 7400, and 7500 applications. Model-year ranges for those additional applications are not provided, so confirm fitment by truck model, engine, 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:
- 2510603C92
- 3830062F91
- 2604187C91
Use the OEM part number to help verify fitment before installation.
Application & Use Case
Designed for:
- International ProStar Cummins ISX coolant reservoir replacement
- Pressurized 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 servicing compatible International truck cooling systems.
Installation & Technical Details
Installation Overview
This pressurized coolant reservoir is designed for compatible International ProStar trucks with Cummins ISX engines and includes the cap and coolant level sensor.
Installation details:
- Vehicle fitment: 2008-2018 International ProStar
- Engine fitment: Cummins ISX
- Additional fitment: Select International 7300, 7400, and 7500 trucks
- Product type: Pressurized coolant reservoir
- Material: Injection molded plastic
- Reservoir cap: Included
- Coolant level sensor: Included
- OEM replacement numbers: 2510603C92, 3830062F91, 2604187C91
- 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
- Designed for ProStar models with Cummins ISX engines
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 Cummins ISX Coolant Reservoirs
Does this fit the International ProStar?
Yes. This coolant reservoir is designed for 2008-2018 International ProStar models with Cummins ISX engines.
Confirm your original reservoir style and OEM part number before ordering.
Does this fit ProStar models without a Cummins ISX?
This listing is specifically for International ProStar models with Cummins ISX engines.
If your truck has a different engine, check the product listing or contact us to confirm the correct coolant reservoir.
What other International models does this fit?
The supplied product information states that it also fits select International 7300, 7400, and 7500 trucks.
Year ranges and engine details 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 your truck’s requirements before installation.
What material is this reservoir made from?
This reservoir is made from quality injection molded plastic.
It is designed as a replacement pressurized coolant reservoir for compatible International truck applications.
What OEM part numbers does this replace?
This reservoir directly replaces OEM part numbers 2510603C92, 3830062F91, and 2604187C91.
Use your original part number to help 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.

















