Genuine Honda 19301-RP3-305 Thermostat Assembly (Nippon Thermostat) Genuine Oem:Yes, Category 2:Cooling System, Fitment Footnotes:Incl.gasket, Item Name:Engine Coolant Thermostat, Category 1:Cooling System Brand:Honda, Fitment Type:Direct Replacement, Vendor:Vendor, Part Ref# On Diagram:ONLY PART REFERENCE #7 ON THE DIAGRAM IS Manufacturer Part Number:19301RP3305, Category 3:Cooling System, Alternate Item Name:Engine Coolant Thermostat, Quantity Needed:1