Skip to content

Free Gift Card Details

$100 Order
$10
gift card
$250 Order
$25
gift card
$500 Order
$50
gift card
$1000 Order
$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 10/01/26.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.

Product Summary

The professional-grade Thoroughbred MIGPONY® 140 Flux-Core/MIG Welder is a ready-to-weld system that's ideal for the home hobbyist or for light fabrication projects. Includes a compact, portable and versatile MIG welder plus almost everything you need to get welding right away. Just add cylinder gas or flux-cored wire and you're ready to go. 90 Amp output @ 18V; 20% duty cycle. Optional spoolgun (Item# 44621) sold separately.

What's Included

  • (1) MIGPONY® welder
  • (1) 2lb. spool of MIG wire
  •  (1) 0.030 contact tip
  •  (1) 0.035 contact tip
  • (1) 10ft. MIG gun and cable assembly
  •  (1) 0.23 contact tip & gas nozzle
  •  (1) 9ft. work cable & clamp
  • (1) 6ft. input power cord
  • (1) Gas regulator & hose

Features + Benefits

  • Precise infinite voltage control for fine-tuning welds
  • Operates from a standard 115V outlet
  • 115V AC, 60Hz, 20 Amp rated input
  • Compact 16in.L x 9 5/8in.W x 14 1/2in.H unit is very lightweight
  • Welds steel, aluminum and stainless steel up to 3/16in.
  • Has a factory-installed gas solenoid valve for MIG welding
  • Regulator flow gauge ensures the unit is running smoothly
  • Quick 59 to 393 in./min. (1.5 – 10.0m/min.) wire feed rate with speed control
  • Handles 0.23in. – 0.030in. solid steel wire, or 0.030in. – 0.035in. flux-cored wire
  • Adjustable gas regulator and hose allows for use with Argon and Argon-Carbon Dioxide blended gasses

Key Specs

AttributeSpecification

item#

40278

Brand

Thoroughbred

Manufacturer's Warranty

1 year Limited Warranty

Ship Weight

45.0 LB

Volts

115

Max. Amps

90

Max. Weld Thickness

0.18 in

Max. Welding Wire Diameter

0.035 in

Duty Cycle

20% at 90A
AttributeSpecification

Weldable Materials

Steel, stainless steel, aluminum

Wire Feed Speed Control

Yes

Cart Included

No

Mig Ready

Yes

Power Cord Length

6 ft

Clamp Cable Length

9 ft

Regulator and Gas Hose Included

Yes

Shielding Gas Required

Yes

Dimensions L x W x H (in.)

16 x 9.62 x 14.5 in

Accessories We Recommend

Warranty

Manufacturer's Warranty

1 year Limited Warranty

Extend Your Warranty Coverage with a Northern Protection Plan (NPP)

Replacement Plan — 1 Year

A Northern Protection Plan is available after adding the product to your shopping cart.