Sierra 18-3637 Yamaha Thermostat Kit
- Brand:
- Sierra
- Part no:
- 18-3637
Where to buy
View on Amazonpaid link
This is a Sierra thermostat kit for Yamaha engines, sold under part number 18-3637 and also marked 3637. No opening temperature, size or list of engines is given beyond the Yamaha name, so check Sierra's catalog for the full application before relying on it. Matching the 18-3637 number to the old thermostat kit is the first check.
Our take
All that is given for the 18-3637 is that it is a Yamaha thermostat kit, with Sierra's catalog holding the full application list. With no opening temperature stated, check the application there before fitting it.