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If you manufacture your own aluminum radiator, the Mishimoto Aluminum Coolant Fill Neck is a must-have. The Mishimoto Aluminum Coolant Fill Necks are CNC machined and ready to be welded for use with your custom project. These Aluminum Fill Necks are compatible with our Mishimoto Radiator Caps. The large Mishimoto CNC machined Aluminum Fill Neck is 42mm and includes a screw-in nipple for overflow.
- CNC machined aluminum universal large fill neck
- Ready to be welded for custom application
- Aluminum fill neck fits with Mishimoto Radiator Cap
- Includes screw-in nipple for overflow