International ProStar Coolant Reservoir | 2591620C91 | 603-5105
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Big Truck Hoods and DuraBuilt are independent aftermarket suppliers, not affiliated with, authorized by, or endorsed by any vehicle manufacturer. This is a new aftermarket part and is not an OEM product. Manufacturer names, model designations, and OEM part numbers are used solely to identify vehicle fitment.
Shipping
Shipping
All LTL Freight quotes must ship to a commercial shipping address.
*A business ran out of a home are NOT considered a commercial address. If there is a home or residence on the ship to property, the address is also NOT considered a commercial address.
*Commercial address may include a local truck repair shop, truck dealer, or any other local commercial address which contains a dock or forklift.
*Small Package Freight items that are able to ship UPS/USPS Ground, CAN ship to a home or residential address.
*If you wish to LTL Freight large items to a home, residence, or farm, please call for a more accurate quote.
Big Truck Hoods does its best to ship orders within 24-48 hours of receipt. Special ordered products will be shipped out as soon as product is delivered and available
ATTN: CUSTOMER / INSTALLER
Inspection and Test Fitting (Dry Fitting) is Required on ALL Parts PRIOR TO PAINTING. Item may require modification before final assembly. Painted Or Primed Hoods Are Not Returnable For Credit/Refund.
Measuerments
Measuerments
To ensure you receive the correct hood, please verify the following things: Correct Make/Model, OEM part number(s) match up, and centerline measurement is correct.
To retrieve the correct centerline measurement, follow these steps: Place your tape measure in the center of the hood and measure down from the back of hood (near windshield) to nose of hood (down to the grille). See photo below.
If you have questions, please check out our FAQs / Help Centre Page or give us a call.
Description
Description
INR-1030
DuraBuilt pressurized plastic coolant reservoir for International trucks with the Cummins ISX 15.0 engine in the model-specific years below. Compare your original tank and OEM number before ordering.
Key Features
- Fitment: International 5900 (2003–2009), 9900i (2003–2018), and ProStar (2007–2020), with ISX 15.0 engine.
- Included: Reservoir cap and level sensor.
- Material: Plastic.
- Condition: New Aftermarket.
⚠️ ProStar reservoirs vary by year and engine. Verify the OEM number on your original tank before ordering. Call or text 260-440-2101 for help confirming fit.
| SKU # | INR-730 |
| Make | International |
| Model / Year | 5900 2003–2009; 9900i 2003–2018; ProStar 2007–2020 |
| Engine | Cummins ISX 15.0 |
| OEM Part # | 2591620C91, 3599401F91, 3599401F92, 3599401F93, 3599401F94, 3599401F95; Navistar International 2508700C92, 2508700C93, 258700C91 |
| Condition | New Aftermarket |
| Material | Plastic |
| Includes | Reservoir cap and level sensor |
| Ship Weight | 10 lbs. |
| Shipping Dimensions | 18" × 15" × 15" |
FAQ
Which trucks are listed? International 5900 (2003–2009), 9900i (2003–2018), and ProStar (2007–2020), with Cummins ISX 15.0 engine. Confirm the original part number.
Does every ProStar use this reservoir? No. The reservoir can vary by year and engine.
Is a cap included? Yes, the supplied product information lists a reservoir cap.
Is a level sensor included? Yes, the supplied product information lists a level sensor.
How can I confirm fit? Compare the number on your original tank, or call/text 260-440-2101.
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Payment & Security
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