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WARNING: This product can expose you to chemicals including Chromium (hexavalent compounds), which is known to the State of California to cause cancer, and Carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Lincoln Electric® 300 Amp Magnum® Pro Curve™ 300 .025" - 5/64" Air Cooled - 15' Cable/Tweco® 4 Pin Style Connector

Airgas Part #:LINK2951-2-6-45

Manufacturer Part #:K2951-2-6-45

$526.00 /Each
Package Size Options
$526.00 Each

Item Details

  • Magnum® PRO Curve™ guns for MIG or flux-cored welding combine our classic curved handle with our Copper Plus® contact tips and Magnum® PRO gun expendables to deliver long hours of fabrication welding with less frequent tip and gun expendable parts changes.


  • 300A, 60% Duty Cycle
  • Runs .025 - 5/64" wire
  • 15 ft
  • 60° gun tube
  • Industrial Grade Construction
  • High quality copper parts ensure superior electrical contact and heat dissipation
  • Four trigger leads are standard for fast field repair
  • Patent-pending Anti-Seize™ tip and diffuser thread design reduces tip and diffuser seizing
  • Lincoln Electric Copper Plus® Contact Tips - Larger tip diameter and mass improve heat dissipation to increase tip life
  • Curve™ Handle Design - Our Curve™ handle is lightweight and balanced, providing a comfortable grip to reduce fatigue
  • Rotating Gun Tube and Gun Hanger Clip - Allow any number of hand positions to reduce fatigue or fit into tight spaces
  • Simplified Expendable Parts Selection - 350A and 550A consumables are interchangeable across all gun models. All models ship with 350A parts
  • Upgrade your Magnum® - Turn your existing gun into a Magnum® PRO Curve™ by switching to Magnum® PRO gun tubes and expendable parts


  • Rated at 60% duty cycle using CO2 at 300 A
  • Rated at 60% duty cycle using Mixed Gases at 200 A


  • KP2744-045 Contact Tip (Qty. 1)
  • KP2742-1-62R 0.625" (15.9 mm) Thread-On Gas Nozzle with 1/8" (3.2 mm) recess
  • KP2746-1 Thread-On Diffuser
  • Gun Connector (K466-10)
  • Gun Liner (KP44-3545-15)

Product Attributes

MIG Amperage Range

» 300 A

Trade Name

» Magnum® Pro Curve™ 300

MIG Wire Size

» .025" - 5/64"

Cable Length

» 15'

Cooling Method

» Air Cooled

Rear Connection

» Tweco® 4 Pin Style Connector

Wire Type

» Flux Cored Gas-Shielded