Description
The Jet Works 3/8 inch Water Restrictor kit is a billet aluminum solution for dialing in cooling temperatures on performance personal watercraft. Machined from 6061 aluminum and made in the USA, this compact inline unit allows riders to fine tune how much water flows through the engine or exhaust circuit. Rather than re plumbing fittings, you simply change the internal restrictor pill to alter flow.
- Billet 6061 aluminum water restrictor designed for 3/8 inch ID waterlines.
- Enables precise adjustment of cooling water flow to optimize engine temperature.
- Includes three different restrictor sizes so you can tailor flow to your setup.
- Pill style inserts can be swapped without removing hose clamps, saving time.
- Ideal companion for Jet Works flow control valves and other exhaust cooling hardware.
- Durable billet construction resists corrosion and repeated heat cycles in harsh marine use.
- Useful for both recreational and race tuned skis that demand consistent temperatures.
For tuners chasing the sweet spot between power and reliability, this restrictor kit provides a flexible **tool** that makes experimenting with cooling flow fast and repeatable.






