STM Billet Water Neck for Evo 6/7/8/9 (CT9-BWN)

The STM billet water neck fits Evo 6/7/8/9 and features optional interchangeable fittings for the 35mm stock upper hose, 10AN, 12AN or 16AN outlets to work with your custom radiator setup.

Also includes a convenient 1/8″ NPT bung for a water temperature sensor. The kit also supplies a NPT plug if you don’t need that provision.

Comes with the outlet fitting of your choice, but if you change your setup, you can buy the Alternate Fittings separately. You can also purchase it without any fittings.

Vehicle Fitment:
Mitsubishi Evolution 6/7/8/9
Not compatible with Evo 1-5

Features:
• Billet Aluminum
• Direct Bolt-On
• Interchangeable Fittings
• Stainless Mounting Hardware
• USA-Made in-house at STM
• Lifetime Warranty on STM Parts to the original purchaser against manufacturing defects
Purchase Includes:
(1) STM Billet Water Neck
(1) 1/8″ NPT Plug (10490)
(3) M6x16 Stainless Bolts (BB-538078-B)
(1) STM Outlet Fitting with O-Ring (optional)

Also Available:
• STM -AN Upper Hose Kit
• STM Replacement Fittings