Coolant Reservoir / Surge Tank / with caps & sensors 575.1014 or A0528531002

The rTech Black Label RT1014 Coolant Reservoir is a heavy-duty replacement designed for compatible Freightliner cooling systems.

Built from durable molded polymer, the RT1014 provides the mounting points, hose connections, and reservoir capacity required for compatible applications while supporting normal coolant expansion and recovery within the cooling system.

This assembly is supplied with compatible cap and sensor components for a more complete replacement solution.

Built for uptime. Built for serious trucks.

Features & Benefit

• Heavy-duty molded polymer reservoir
• Designed for compatible Freightliner cooling systems
• Includes cap and sensor components
• OE-style mounting and hose connection layout
• Supports normal coolant expansion and recovery
• Durable construction for under-hood commercial vehicle environments
• Designed for straightforward replacement
• Fleet-approved Black Label quality 
  

rTech Product Specifications

• rTech Part Number: RT1014
• Product Type: Pressurized Coolant Reservoir / Surge Tank
• Material: Molded Polymer
• Cap Included: Yes
• Sensor Included: Yes
• Installation: Vehicle-Specific
• Series: rTech Black Label 
  

Vehicle Applications

Designed as an aftermarket replacement for compatible Freightliner coolant reservoir systems.

The A0528531002 / 603-5207 / 575.1014 family is well established in current heavy-duty catalogs. Dorman also identifies A0528531000, A0528531001, and A0528531002 as OE crosses for 603-5207. 

Cooling-system configurations can vary by chassis, engine, model year, and reservoir assembly. Verify fitment by VIN before ordering.

Direct Cross References

• rTech Black Label: RT1014
• Automann: 575.1014
• Freightliner: A0528531000
• Freightliner: A0528531001
• Freightliner: A0528531002
• Dorman: 603-5207
• Dorman: 6035207
• Newstar / Reference: S24015 
  

The A0528531000/001/002 family and 603-5207 relationship are directly supported in Dorman’s current catalog.

Cross-reference numbers and manufacturer names are provided for identification and fitment purposes only. All trademarks are the property of their respective owners. rTech Black Label products are independent aftermarket replacement parts and are not manufactured, sponsored, endorsed, or approved by the referenced manufacturers. Always verify fitment before installation.

Why the Coolant Reservoir Matters

The coolant reservoir is an important part of the engine cooling system.

It provides space for coolant expansion and recovery while helping maintain a closed cooling-system circuit.

A damaged, cracked, or leaking reservoir can contribute to:

• Coolant loss
• Air entering the cooling system
• Cooling-system leaks
• Reduced coolant reserve
• Increased risk of overheating if coolant loss goes unnoticed
  

For working fleets, replacing a damaged reservoir before it becomes a larger cooling-system problem can help prevent avoidable downtime.