Skip to Main Content
Canadian
Canadian owned and operated

005-0686 - MK Products Python & Cobra Gun Idler Roll Replacement Kit

Packaging: 1 of each
$62.90/ea $44.93/1 of each only $44.93/eaSave 29%

Usually ships within 3-5 business days

OVERVIEW

Restore Smooth Feeding with the MK Products Idler Roll Kit

Is your Python or Cobra gun starting to slip? Are you constantly adjusting the tension knob just to get the wire to feed consistently? It might be time to replace your idler roll. The MK Products 005-0686 Idler Roll Kit is the exact part you need to get your push-pull gun running like new again. We all know that in the world of aluminum welding, the feed system is everything. If your wire isn't moving smoothly, your beads are going to suffer, and you're going to waste time clearing birdnests and fixing burn-backs.

The idler roll is the unsung hero of your welding gun. It sits opposite the drive roll and makes sure the wire is pressed firmly enough to grip, but not so hard that it gets squashed. Over time, thousands of feet of wire passing over this little wheel can wear a groove into it or cause the bearing surface to wobble. When that happens, you lose that precise control that MK Products guns are famous for. You might notice the arc sputtering or the wire hesitating, especially when you are welding out of position or with the cable looped.

This kit comes with everything you need to swap out the old, worn part: a fresh, hardened steel idler roll, a new screw, and a washer. It fits a wide variety of MK guns, including the popular Python, CobraMX, and PrinceXL models. Installing it is a breeze and takes just a few minutes on the bench. Once installed, you'll notice an immediate difference in how the gun handles. You won't have to crank down the tension arm as hard, which saves your drive motor and protects your wire from deformation.

Don't let a ten-dollar part ruin a thousand-dollar job. Keeping a spare 005-0686 Idler Roll Kit in your toolbox is cheap insurance against feeding problems. Whether you are building boats, trailers, or aerospace components, consistent wire delivery is the key to a perfect stack of dimes. Trust genuine MK parts to keep your Cobramatic system performing at the level you expect. Get your gun back in the fight and keep your arc smooth with this essential replacement kit.

Additional Information
Brand:MK Products
Fits Which Model:MK Products Python, MK Products Cobra, MK Products Prince, MK Products Cobramatic Systems
Packaging Description:1 per each
Wire Type:Aluminum, Solid, Cored
Product Type:Idler Roll Kit
Compatible Guns:Python, CobraMX, PrinceXL, CobraGold
Kit Contents:Idler Roll, Mounting Screw, Washer
Material:Hardened Steel
Wire Size:N/A
2 Or 4 Roll:n/a
Fits Which Model?:N\A

INCLUDED

  • 1 x Idler Roll
  • 1 x Mounting Screw
  • 1 x Washer
  • Installation Instructions

APPLICATIONS

  • Aluminum fabrication and manufacturing
  • Shipbuilding and marine repair
  • Automotive and trailer manufacturing
  • Aerospace welding applications
  • Heavy industrial maintenance
  • Sign manufacturing

FAQ

This idler roll kit is compatible with a wide range of MK Products push-pull guns, including the Python, CobraMX, CobraGold, PrinceXL, and Spool Gun models.

No, this kit contains the idler roll (the pressure roll), a screw, and a washer. The drive roll (the grooved wheel that moves the wire) is sold separately.

Signs of wear include visible grooves or flat spots on the roll's surface, wobbling due to bearing wear, or inconsistent wire feeding that requires excessive tension adjustments.

Yes, this part is specifically designed for MK Products guns which are the industry standard for feeding aluminum welding wire.

The drive roll is connected to the motor and has grooves to grip the wire. The idler roll is a free-spinning wheel that applies pressure to the wire against the drive roll.

Yes, this is a genuine MK Products OEM replacement part, ensuring correct fitment and material hardness specifications.

Only if the Miller gun is a rebranded MK Products gun (like some older XR models that were made by MK). Always check your manual for the specific part number 005-0686.