Seller notes

For 1955 GMC M340 Thermostat Gates 66451MXXX Premium Thermostat -- 180 Degree Review Fitment Notes to Ensure Proper Fit Condition: NewBrand: GatesNotes: Premium Thermostat -- 180 DegreeStart to Open Temperature: 180 Deg. FStart to Open Temperature: 82 Deg. CDesign: Reverse PoppetInstallation Tool Included: NoFeatures:OE ImprovedUpgraded thermal valve prevents thermal shock to cooling system componentsSpecially-formulated wax mixture reacts quickly to changes in coolant temperatureJiggle pins for...

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