Radiator Coolant Reservoir for International 2003-2018 15.0L ISX

Our review of the radiator coolant reservoir expansion tank focuses on heavyduty trucking owners who need a reliable, direct fit replacement for International models with the 15.0L Cummins ISX engine. The bottom line: this tank is an affordable OE replacement that installs without modification for many 2003-2020 International ProStar, 9900i and 9200i models, and it delivers the core benefit most buyers want - correct fit and dependable coolant recovery function. For fleets or owneroperators looking to avoid downtime, this is a practical repair part.

Key Features

• Direct Fit: Designed as an OE replacement so it fits the specified International models without fabrication or trimming.
• Vehicle Specific: Check fitment information in the listing to confirm compatibility with your 2003-2020 International 9200i, 9900i or ProStar.
• Aftermarket Reference Numbers: Cross references like 6035105 and HVA02872 make it easier to match to existing parts and service records.
• Durable Construction: Built to withstand typical engine bay conditions so it maintains coolant recovery and pressure relief over time.
• Easy Installation: Customers report straightforward mounting and minimal tools required, cutting shop time on replacements.

Who It's For

This expansion tank is best for commercial truck owners, fleet maintenance techs, and owneroperators running International models with the 15.0L Cummins ISX who need a likeforlike coolant reservoir. It suits anyone who prefers a direct replacement part referenced to common aftermarket and manufacturer numbers for easier sourcing.

Those who should look elsewhere include owners of vehicles outside the stated fitment or users seeking a universal tank with adjustable mounting. Also, if you need an exact OEM branded part from the original manufacturer rather than an OE replacement, consider sourcing a factory unit.

Pros & Cons

Pros

• Reliable fit for listed International models, reducing installation time and alignment issues.
• Solid build quality and durability that customers describe as good value for money.
• Clear aftermarket reference numbers and vehicle-specific fitment details simplify parts matching.

Cons

• Screw hole alignment received mixed feedback from some users, so careful installation checks are recommended.

Specifications

Product Type	Engine Coolant Reservoir Expansion Tank
Fitment Engines	15.0L Cummins ISX
Compatible Models	International ProStar, 9900i, 9200i (listed years)
Fitment Years	2003-2020 (model dependent)
Aftermarket References	6035105, HVA02872 (plus Dorman and Navistar cross refs)
Replacement Type	Direct OE Replacement

Our Verdict

For technicians and truck owners who need a practical, vehiclespecific coolant reservoir for International 9200i, 9900i or ProStar trucks with the 15.0L ISX, this unit delivers dependable performance and good value. It replaces worn or cracked tanks with minimal fuss, and the cross references ease parts matching, making it a smart choice for routine repairs and fleet maintenance.

Frequently Asked Questions

Will this tank fit my International ProStar?
Check the listing fitment for years and engine; it is made for ProStar models with the 15.0L Cummins ISX within the specified 2008-2020 range.

Are there reference numbers to match my old part?
Yes, aftermarket references such as 6035105 and HVA02872 plus Dorman and Navistar cross refs are provided to help confirm compatibility.

Is installation difficult?
Customers report straightforward, nomod installation in most cases, though screw hole alignment has mixed feedback so allow time for careful mounting.