3/8" Diameter Aluminum MIG Contact Tips (Select Wire Size & Package Quantity From Options Above)

Reliable current transfer and consistent wire feeding for aluminum MIG welding.
MK Products® 3/8" Diameter Aluminum MIG Contact Tips are genuine replacement consumables designed for compatible MK Products® push-pull and spool welding guns. Built specifically for aluminum welding applications, these tips help maintain dependable electrical contact with the welding wire for consistent arc performance and wire transfer.

Choose from six wire size / tip I.D. combinations to match your aluminum welding wire. Each size is available in either a 10-pack or 100-pack, making it easy to stock the right quantity for occasional maintenance or high-production welding.

Choose the Correct Contact Tip

Important: Select the contact tip according to both your welding wire diameter and required tip I.D. Some wire diameters are available with more than one tip I.D., so do not select by wire diameter alone.

Choose Your Package Quantity

Why Welders Choose MK Products® Contact Tips

• Designed for Aluminum: Engineered specifically for aluminum MIG welding applications.
• Dependable Current Transfer: Maintains electrical contact between the welding gun and wire for consistent welding performance.
• Multiple Wire Sizes: Six wire size / tip I.D. combinations are available.
• Production Quantities Available: Choose a 10-pack or 100-pack based on your shop's needs.
• Genuine MK Products® Quality: Designed for compatible MK Products® push-pull and spool welding guns.

Compatible Welding Guns

• MK Products® Python®
• MK Products® Python® X
• MK Products® Python® LX
• MK Products® Prince® XL
• MK Products® Prince® X
• MK Products® Prince® XL Spool
• MK Products® Cobra® X-HD
• MK Products® Cobra® MX-HD
• MK Products® Cobra® Gold

Cobra® Gold Compatibility Note: Cobra® Gold welding guns require Cup Adapter Part #431-1630.

Compatibility Note: Always verify your welding gun, wire diameter, and required contact tip I.D. before ordering.

Why Contact Tip Size Matters

The contact tip transfers welding current to the wire as it passes through the welding gun. Selecting the correct tip I.D. helps maintain reliable electrical contact while allowing aluminum wire to feed properly through the tip.

Because aluminum wire can expand as it heats during welding, the correct contact tip size is especially important for maintaining smooth wire feeding and dependable arc performance.

When Should You Replace a Contact Tip?

Contact tips are normal wear items. Inspect and replace the tip when you notice excessive wear, inconsistent wire feeding, poor electrical contact, burnback damage, or changes in arc performance.

Keeping replacement tips available can help minimize downtime, especially in production aluminum welding environments.

Ideal Applications

• Aluminum MIG welding
• Push-pull welding systems
• Spool gun welding
• Production aluminum fabrication
• Automotive and transportation manufacturing
• Marine fabrication
• Aerospace fabrication
• General aluminum manufacturing

Frequently Asked Questions

How many wire size options are available?
There are six wire size / tip I.D. combinations available: .030" with .041" I.D., .035" with .044" I.D., 3/64" with .053" I.D., 3/64" with .060" I.D., 1/16" with .074" I.D., and 1/16" with .085" I.D.

How are the contact tips sold?
Select either a 10-pack or 100-pack from the options above.

Why are there two tip I.D. options for some wire sizes?
Different tip inside diameters allow the contact tip to match the requirements of the welding setup. Always select the wire size and tip I.D. specified for your application.

Are these designed for aluminum welding?
Yes. These 3/8" diameter contact tips are specifically designed for compatible aluminum MIG welding applications.

What welding guns are compatible?
They are designed for compatible MK Products® Python®, Prince®, and Cobra® push-pull and spool welding guns listed above.

Will these fit a Cobra® Gold gun?
Yes, but the Cobra® Gold requires Cup Adapter Part #431-1630.

Are these genuine MK Products® contact tips?
Yes. These are genuine MK Products® replacement consumables.

Are contact tips considered wear items?
Yes. Contact tips naturally wear during welding and should be inspected and replaced as needed to maintain consistent performance.