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Expansion Tank Volvo Volvo Truck Expansion Tank Coolant Tank Volvo Fmx FMX Series Coolant Tank Volvo OE Reference Number: 21493205, 22430366, 22821828 VOLVO, EXPANSION TANK, VOLVO, , EXP-28, ENGINE COOLING, 22821828 The expansion tank is situated in the upper part of the cooling system and is usually made from polypropylene plastic (PP). If the cooling fluid heats up, it expands. To prevent the hoses between the radiator and the engine from becoming overloaded or even bursting, the displaced cooling fluid is accommodated in the expansion tank to minimise the loss of coolant. This website uses the names, models, product types, part numbers, and other product information associated with the brands of original or non-original manufacturers solely for identification purposes. We are not official distributors of the mentioned manufacturers or owners of brand names.
