Vehicle Set: Click here to shop 99-00 Honda Civic Si (EM1) mods.

99-00 Honda Civic Si Thermostats

Want to modify or upgrade your 99-00 Honda Civic Si (EM1) with aftermarket thermostats? At ClubCivic.com we have a great selection of aftermarket performance parts for your 6th generation Honda Civic Si. We have 4 Thermostats available in our catalog and most have free shipping.

Gates Civic Mods

Gates Thermostat Seals

Gates Thermostat Seals 33615
Gates Thermostat Seal
1999-2000 Honda Civic Si
Gates Civic Mods

Gates Thermostats

Gates Thermostats 33340S
Gates 86-01 Acura Integra / 90-02 Honda Accord / 84-09 Civic / 87-91 Sterling Super Stat Thermostat
1999-2000 Honda Civic Si
Gates Thermostats 33568S
Gates 84-12 Honda Civic Superstat Thermostat - 180 Deg F
1999-2000 Honda Civic Si
Mishimoto Civic Mods

Mishimoto Thermostats

Mishimoto Thermostats MMTS-CIV-92L
Mishimoto 92-00 Honda Civic/92-96 Prelude/97-99 CL/90-99 Accord 155 Deg F/68 Deg C Racing Thermostat
1999-2000 Honda Civic Si