Dorman Engine Coolant Reservoir 603-5104 fleetguard Advanced Traction: Deep

Advanced Traction: Deep

Common configuration used across heavy-duty truck and trailer applications

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Dorman Engine Coolant Reservoir 603-5104 fleetguard Advanced Traction: DeepDorman Engine Coolant Reservoir 603 5104 is a real heavy duty coolant reservoir or surge tank product for commercial truck cooling systems. Brand: Dorman Part number: 603 5104 Product type: Reservoir tank surge tank Engine coolant reservoir listing. This component helps manage coolant expansion and return flow in pressurized cooling systems. Verify part number, cap style, ports, mounting points, and application compatibility before ordering.