• Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603 - 5504 - RoadWest Truck Parts - B09X17JJN2 - High Soar
  • Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603 - 5504 - RoadWest Truck Parts - B09X17JJN2 - High Soar
  • Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603 - 5504 - RoadWest Truck Parts - B09X17JJN2 - High Soar
  • Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603 - 5504 - RoadWest Truck Parts - B09X17JJN2 - High Soar
  • Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603 - 5504 - RoadWest Truck Parts - B09X17JJN2 - High Soar
  • Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603 - 5504 - RoadWest Truck Parts - B09X17JJN2 - High Soar

Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603-5504

Vehicle Fitment
Volvo VN Volvo VNL Volvo VNM
$81.69 USD
$81.69 USD $85.99 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

The ROADWEST 603-5504 Engine Coolant Reservoir Tank is designed as a direct aftermarket replacement for Volvo VN, VNL and VNM heavy-duty trucks. Built to OEM standards, it restores proper coolant storage and circulation to keep your engine running at the correct operating temperature.

Manufactured from quality materials and engineered to withstand underhood heat and constant vibration, this coolant reservoir tank is an ideal solution when your original tank is cracked, leaking or discolored. By properly managing coolant expansion and return, it helps prevent air from entering the system and reduces the risk of corrosion and overheating.

  • Direct aftermarket replacement – Matches OE part numbers 20519037, 20519039, 8140024, 1674922, 20461002, 20505819.
  • Vehicle-specific fit – Designed for Volvo VN, VNL and VNM trucks (2004–2007).
  • Durable construction – Built from high-quality materials to resist underhood heat, engine vibration and long-term use.
  • Improved cooling performance – Helps control coolant flow and supports quick warm-up to working temperature while preventing continuous air ingress.
  • Ideal OE-style solution – Engineered for a seamless installation with no major modifications required.
  • Important note – Always verify your truck’s Year / Make / Model and OE part number before ordering.

Compatibility

This engine coolant reservoir / overflow expansion tank is compatible with selected Volvo heavy-duty trucks, including:

  • Volvo VN (2004–2007)
  • Volvo VNL (2004–2007)
  • Volvo VNM (2004–2007)

For best results, confirm that one of the OE part numbers below matches your original tank:

  • 20519037
  • 20519039
  • 8140024
  • 1674922
  • 20461002
  • 20505819

Specifications

Brand ROADWEST
Product Type Engine Coolant Reservoir / Expansion Tank
OE Reference 20519037, 20519039, 8140024, 1674922, 20461002, 20505819
Vehicle Service Type Volvo VN, Volvo VNL, Volvo VNM (2004–2007)
Exterior Finish Metal
Fuel Type Diesel (heavy-duty truck applications)
Item Weight Approx. 3.38 kg
Function Stores and regulates coolant, helps maintain system pressure and engine operating temperature
Installation Direct-fit replacement; professional installation recommended
Manufacturer ROADWEST

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.
Volvo VN/VNL/VNM Coolant Reservoir / Expansion Tank (2004–2007) – 603-5504

$81.69 USD