PRODUCT DESCRIPTION: Mercury Mariner L3 L4 70 75 80 90 100 115 125 Thermostat Kit 803061T1 18-3569 The kit includes (1) 18-0182 Thermostat Gasket, (1) 18-0339 Thermostat Cover Gasket, and (1) 18-3549 Thermostat. It is interchangeable with GLM 13124, Mallory 9-43155, and Mercury Marine 803061T1.