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(888) 312-8812 Login SignupCoolant system pressure must be managed to protect against boiling or coolant loss, and the Freightliner Radiator Surge Tank Cap regulates that pressure effectively. This cap is a direct fit for Freightliner surge tanks and supports optimal coolant containment by venting excess pressure and preventing vacuum formation during cooldown. The Freightliner 05-20763-002 is crucial to inspect and replace as part of regular coolant system maintenance.
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