International WorkStar 7400/7600 Coolant Reservoir (2008–2014) – Fits OE 2591790C1 / 2591790C2 / 2591800C92
Warranty Information
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.
Shipping & Returns
Most ROADWEST orders ship from our U.S. warehouses within 1–2 business days. Standard ground delivery in the contiguous United States is typically 1–3 business days, with freight service used for oversized or extra-heavy parts.
- Shipping area: United States only (no PO Boxes or international addresses).
- Processing time: In-stock items usually ship within 1–2 business days, Mon–Fri.
- Delivery: Standard ground or LTL freight depending on size and weight.
- Returns: Most unused items may be returned within 30 days of delivery, subject to inspection and our return guidelines.
- Costs: Original and return shipping are generally the customer’s responsibility, unless the issue is caused by ROADWEST (wrong item, damaged on arrival, etc.).
For full details, please review our Shipping Policy and Easy Return & Refund Policy before placing your order.
Ensure optimal cooling system performance with the High Soar Engine Coolant Reservoir, specifically designed for the International WorkStar 7400/7600 (2008‑2014). This high‑quality tank replaces OE numbers 2591790C1, 2591790C2, 2591800C92 and is engineered for a precise fit and dependable service.
Constructed from robust ABS plastic, the tank delivers long‑lasting durability and resists the effects of engine vibration, extreme temperatures and cooling system pressures. With the correct material and design, it can help prevent air ingress and oxidative corrosion that often lead to system failure.
Installation is straightforward—this unit is a direct replacement for factory equipment, requiring no modifications. We recommend verifying your truck’s model and year before ordering to confirm fitment.
| Brand | High Soar |
|---|---|
| Fitment | International WorkStar 7400/7600 (2008‑2014) |
| OEM Part Numbers | 2591790C1, 2591790C2, 2591800C92 |
| Material | ABS Plastic |
| Vehicle Service Type | Heavy‑Duty Truck / Diesel |
| Exterior Finish | Polished (visible tank/translucent variant may vary) |
| Item Weight | ≈ 1.02 kg |
| Included Components | 1× Coolant Reservoir Tank (without cap unless stated) |
| Function | Controls radiator coolant surge, prevents air ingress and supports engine reaching correct operating temperature. |
| Warranty | 1 Year Quality Assurance – ROADWEST / High Soar |