1999-2000 Mazda Miata. Coolant By-Pass Hose is a direct fit for the following.
OEM NEW Mazda Coolant Thermostat Housing 1990-1993 Mazda Miata B61P-15-170B
NEW OEM GENUINE Mazda Coolant (Green) Antifreeze Radiator Fluid 0000-77-501E-02
LF70-15-170 OEM GENUINE MAZDA 3 5 THERMOSTAT RADIATOR ENGINE COOLANT WATER OULET
OEM NEW Mazda 1993-2002 RX-7 Sub Radiator Coolant Reserve Tank N3A1-15-350B
OEM NEW Mazda 1995-2005 Miata Protege Engine Coolant Thermostat BP6F-15-171A
NEW OEM GENUINE Mazda 2010-2013 Mazda3 Engine Coolant Overflow Hose LF8B-15-18YA