Description

STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation

Firstly, Buy STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation for custom cooling systems. Upgrade your Mitsubishi Lancer Evolution cooling system with the STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation. This purpose-built water neck is designed to relocate the radiator cap to a higher position in the cooling system, making it ideal for custom radiator setups and modified cooling systems.

Radiator cap placement is important when changing the factory cooling-system layout. By moving the cap to the highest point, this STM water neck helps create a more practical setup for filling and bleeding the cooling system. It is especially useful when installing an STM billet radiator or another custom radiator that does not retain the factory radiator-cap location.

Designed for Mitsubishi Evo Cooling Systems

The STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation is designed around Mitsubishi Evolution 6, 7, 8, and 9 applications. It is intended for enthusiasts who are upgrading their cooling system while maintaining a clean and functional engine-bay layout.

STM specifically pairs this water neck with its billet aluminum radiator systems that require the radiator cap to be relocated. The relocation places the cap at the highest point of the cooling system, which is useful when the radiator itself no longer has a dedicated radiator-cap bung.

Radiator Cap Relocation

One of the main benefits of this water neck is its ability to move the radiator cap away from the original location. This can be particularly helpful when using a slim or custom radiator designed around aftermarket engine-bay components.

Buy STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation for custom cooling systems, Relocate your radiator cap higher and simplify coolant filling.

A properly positioned radiator cap also makes coolant filling and system bleeding more convenient. For modified Evo builds, this can provide a cleaner cooling-system layout while supporting the requirements of an aftermarket radiator.

Ideal for Custom Radiator Builds

The STM water neck is a practical choice for Evo owners building a custom cooling system. It works especially well with aftermarket radiator configurations where the radiator itself does not include a radiator-cap opening.

For example, STM’s billet aluminum slim radiator for the Evo 7/8/9 does not have a radiator-cap bung and requires a separate STM water neck for radiator-cap relocation. STM also notes that the relocation moves the cap to the highest point in the cooling system.

This makes the water neck a useful component for performance builds, engine swaps, custom hose routing, and upgraded radiator installations.

Key Features

• Designed for Mitsubishi Evolution 6/7/8/9 applications
• Relocates the radiator cap to a higher position
• Helps place the cap at the highest point of the cooling system
• Designed for custom and aftermarket radiator setups
• Ideal for STM radiator applications
• Suitable for performance-focused Evo cooling systems
• Helps simplify coolant filling and bleeding
• Provides a cleaner alternative to retaining the factory radiator-cap location

Fitment

The STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation is intended for Mitsubishi Lancer Evolution models within the Evo 6 through Evo 9 range.

Applications:

• Mitsubishi Lancer Evolution VI
• Mitsubishi Lancer Evolution VII
• Mitsubishi Lancer Evolution VIII
• Mitsubishi Lancer Evolution IX
• 4G63 turbocharged applications using compatible cooling-system components

Because cooling-system configurations can vary between model years and aftermarket radiator setups, verify your radiator, upper hose, and water-neck configuration before ordering.

Why Use a Radiator Cap Relocation Water Neck?

A radiator-cap relocation setup can be useful when the factory radiator configuration is replaced with a performance radiator or custom cooling system. Instead of trying to retain the original cap position, the water neck provides a dedicated location higher in the system.

Firstly, relocating the cap can make coolant filling more convenient. Secondly, positioning the cap higher can help when bleeding air from a modified cooling system. Thirdly, it allows an aftermarket radiator without an integrated cap bung to be used as part of a complete cooling-system upgrade.

This is particularly useful for Evo owners who are already modifying radiator size, hose routing, intercooler components, exhaust manifolds, or other engine-bay hardware.

Performance Cooling System Upgrade

The STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation is not simply a replacement for a standard factory water neck. Its purpose is to support a modified cooling-system layout where radiator-cap relocation is required.

STM’s billet radiator design places the upper radiator hose connection to the right side of the engine bay to provide additional clearance for larger exhaust manifolds. Because that radiator does not include a radiator-cap bung, the STM relocation water neck is used to position the cap higher in the system.

For a performance Evo build, this approach can provide a cleaner and more purposeful cooling-system installation.

Shop STM Evo Parts Online

If you are upgrading the cooling system on your Mitsubishi Evolution, the STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation is a useful component for custom radiator installations. It is especially relevant for builds using an aftermarket radiator that requires the radiator cap to be relocated.

At evomotorparts.com, you can shop Mitsubishi Evo cooling-system components, performance parts, and OEM replacement parts for your build. Order online and build your Evo with components selected for the specific needs of your setup.

Frequently Asked Questions

What does the STM water neck do?

The STM water neck provides a location for relocating the radiator cap higher in the cooling system. This is useful when using a radiator without a factory-style radiator-cap bung.

What Evo models is it designed for?

The product is listed by STM for Evo 6/7/8/9 applications. Always confirm your specific cooling-system configuration before ordering.

Why relocate the radiator cap?

Relocating the cap can place it at a higher point in the cooling system, which can make coolant filling and air bleeding easier on modified cooling systems.

Is this required with the STM billet radiator?

STM states that its Evo 7/8/9 billet aluminum slim radiator does not have a radiator-cap bung and requires the STM Water Neck for Radiator Cap Relocation.

Is this the complete radiator?

No. This is a water-neck component used for radiator-cap relocation. The radiator and other cooling-system components are sold separately.

Conclusion

The STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation is a purpose-built cooling-system component for Mitsubishi Evolution builds using custom or aftermarket radiator configurations. By relocating the radiator cap to a higher point in the cooling system, it provides a practical solution for modified radiator layouts while making coolant filling and bleeding more convenient. It is particularly well suited to STM’s aftermarket radiator setup and other custom cooling systems where the original radiator-cap location is no longer suitable. If you are upgrading your Evo’s cooling system, shop this STM water neck and other Mitsubishi Evo parts at evomotorparts.com.

Buy STM Evo 6/7/8/9 Water Neck for Radiator Cap Relocation for custom cooling systems, Relocate your radiator cap higher and simplify coolant filling.