LOSTAR Coolant Reservoir with Cap & Sensor for Volvo VNL/VHD & Mack CXU/CHU (2008-2017) | OE 21513979 21846997 603-5505

Engineered compatibility for demanding fleets

Long-haul trucking relies on consistent cooling system performance. The LOSTAR coolant reservoir with cap and sensor is designed to fit a range of heavy-duty models from 2008 to 2017, including Volvo VNL, VNM and VHD series as well as Mack CXU and CHU chassis. It aligns with familiar OE references, offering a straightforward replacement path during routine service. Expect a dependable fit that contributes to smoother refilling and a steadier coolant level over time, without guessing or improvisation on the repair floor.

The package includes the cap and sensor, so you can monitor coolant levels with confidence. The housing is engineered for a simple swap—no drilling or cutting required in most setups—allowing techs to complete the job efficiently on site. Brand-new construction signals ready-to-use performance and a reliable baseline for daily operations. A 1-year limited warranty provides peace of mind as part of your parts inventory.

What to expect during installation

• Broad vehicle compatibility: Volvo VNL, VNM, VHD and Mack CXU/CHU models (2008–2017)
• OE references supported: 21513979, 21846995, 21846997, 22061288, and 603-5505 variants
• Cap and sensor included for complete replacement and direct monitoring
• No drilling or cutting required for most installation scenarios
• Brand-new part with credible performance expectations
• 1-year limited warranty for added coverage

Practical benefits in the field

In day-to-day operations, this reservoir aims to support steady coolant management and clear visibility of levels during inspections. Fleet and shop teams may appreciate the efficiency of a swap that mirrors original specifications, reducing downtime and keeping vehicles on the road where they belong.

• Quick, reliable replacement on long-haul routes with minimal downtime
• Sensor-enabled readings help verify levels between service windows
• Effortless installation designed for busy service bays

While results can vary by vehicle condition and usage, choosing a part that mirrors OEM references can support consistent maintenance routines and predictable service outcomes for heavy-duty fleets.