Mugen Low Temp Thermostat Honda Civic FK7 17-21

Mugen Low Temp Thermostat Honda Civic FK7 17-21

Mugen’s low temperature thermostat opens earlier than standard to help control rapid rises in coolant temperature and reduce heat-related power loss.

It starts to open at 68°C (standard 78°C) and is fully open at 81°C (standard 90°C).

Specifications

• Opening temperature: 68°C (standard 78°C)
• Fully open: 81°C (standard 90°C)
• Fitting time: approx. 1.2 hours

Key Features

• Opens 10°C earlier than standard
• Helps control coolant temperature rises
• Reduces heat-related power loss
• Genuine Mugen part
• For the pre-2020 FK7 hatchback

What’s in the Box?

• Low temperature thermostat

Fitment

• Honda Civic hatchback FK7 before the January 2020 update (Japanese chassis FK7-100)

Not suitable for: hatchbacks from the January 2020 update (FK7-120 onwards), the saloon or the Type R.

Installation

Mugen quotes approx. 1.2 hours. The cooling system must be drained, refilled and bled. Work only with the engine cold. Professional fitting is recommended.

What does it do?

It opens at a lower temperature, helping keep coolant temperatures down under load.

Does it fit the 2020 update?

No. Mugen lists it for hatchbacks built before January 2020 (FK7-100) only.

Does it fit every FK7 engine?

Mugen lists it for the hatchback.

Part reference

• 19301-XGER-0000

With roots in Japanese motorsport dating back to 1973, Mugen holds a distinctive place in Honda’s performance heritage. Its history in race-engine development and competition shapes a range of performance parts and accessories prized by Honda enthusiasts for their engineering, purposeful design and unmistakable identity.