Dorman Pressurized Coolant Reservoir 603-454 length-6-56-ft Part number: 340-4186

Part number: 340-4186

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Dorman Pressurized Coolant Reservoir 603-454 length-6-56-ft Part number: 340-4186Dorman Pressurized Coolant Reservoir 603 454 is a real heavy duty coolant reservoir or surge tank product for commercial truck cooling systems. Brand: Dorman Part number: 603 454 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.