Coolant Reservoir 603-5104 for International / IC TranStar (2591625C92)

Name: Coolant Reservoir 603-5104 for International / IC TranStar (2591625C92)
Brand: ROADWEST
Price: 79.48 USD
Availability: InStock

Vehicle Fitment

International 3200 International 4100 International 4100 SBA International 4200 International 4200LP International 4300 International 4300LP International 4400 International 7300 International 8500

Amazon Price $83.66 USD

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Model 603-5104 WXX0401-3

$79.48 USD

$79.48 USD ~~$83.66 USD~~

QC VERIFIED Built for Truckers. We stock it, inspect it, and verify fitment - so you get the right part first time, for less.

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DESCRIPTION

Up to 5% off

Restore proper coolant expansion and overflow control with this coolant reservoir / radiator overflow tank, built as an OE-style direct replacement for select International / Navistar truck applications. This replacement tank is designed for reliable fit and function, and includes a 15 PSI cap and tubing for a more complete installation.

Direct Replacement: OE-style design to match original fit and coolant overflow function.
Fitment: FOR International 3200 (2002–2011), FOR International 4100 (2006–2012), FOR International 4100 SBA (2006–2008), FOR International 4200 (2002–2010), FOR International 4200LP (2003–2008), FOR International 4300 (2002–2016), FOR International 4300LP (up to 2015), FOR International 4400 (2002–2016), FOR International 7300 (2002–2015), FOR International 8500 (2002–2007), and FOR International 8500 TranStar (2008–2011).
Part Number: 603-5104.
Replaces OE Numbers: 2591625C92, 2599039C91, 2602872C91, 2602943C91, 3829605F91, 3829605F92.
Complete Kit: Includes 1× coolant reservoir, 1× cap, and tubing.
15 PSI Cap: Cap supports up to 15 PSI max pressure rating (as specified).
Mounting Design: Features 4 mounting holes and a spring-loaded twist mechanism.

Product Type	Coolant Reservoir / Radiator Overflow Tank
Part Number	603-5104
Replaces Part Number	2591625C92, 2599039C91, 2602872C91, 2602943C91, 3829605F91, 3829605F92
Material	Plastic
Exterior Finish	Plastic
Item Dimensions (L × W × H)	13.5 × 10.75 × 21 inches
Mounting	4 Mounting Holes
Cap Pressure Rating	15 PSI Max
Mechanism	Spring-Loaded Twist Mechanism
Vehicle Service Type	International / TranStar (Navistar)
Package Includes	1 × Coolant Reservoir, 1 × Cap, Tubing

Fitment Note

Please confirm your vehicle is FOR the listed International models and verify the 603-5104 part number, OE replacement numbers, mounting points, and tank shape before ordering to ensure proper fit.

Shipping Policy

Most ROADWEST orders are processed from our U.S. warehouses within 1–2 business days (Monday–Friday, excluding major U.S. holidays).

We currently ship within the United States only and do not deliver to P.O. Boxes, APO/FPO/DPO addresses, or international addresses.

Shipping Area: United States only
Process Time: In-stock items are usually processed within 1–2 business days (Mon–Fri, excluding major U.S. holidays)
Delivery Method: Standard ground for most items; LTL freight for oversized or extra-heavy parts
Delivery Time: After shipment, delivery typically takes 3–7 business days, depending on item size, destination, and carrier performance
Returns: Most unused items may be returned within 30 days of delivery, subject to inspection and our return guidelines

For full details, please review our Shipping Policy and Easy Return & Refund Policy before placing your order.

Warranty

ROADWEST stands behind the parts we sell. Unless otherwise stated on the product page, your purchase is covered by a 1-Year Limited Warranty against manufacturing defects under normal use.

What’s covered

Defects in materials or workmanship
Premature failure caused by factory-related issues

What’s not covered

Normal wear and tear, cosmetic aging, corrosion from environment/road salt
Damage from improper installation, incorrect wiring, modifications, misuse, or accidents
Labor costs (installation/removal), downtime, towing, or other indirect costs

How to file a claim

Contact us with:

Order number
Product name / SKU
Clear photos or a short video showing the issue

If approved, ROADWEST will provide an appropriate resolution (replacement parts, replacement unit, or refund/credit).

Please do not send items back without return authorization.

For more details, see our Shipping Policy, Easy Return & Refund Policy, and Warranty pages.