The welder will weld up to 18 gauge sheet metal or 1/4" thick steel.
Free Gift Card Details
$100 Order
$250 Order
$500 Order
$1000 Order
- 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 11/01/26.
- 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.
Century by Lincoln Electric Inverter Arc Welder, 120V DC, 10–90 Amps, Model# K2789-2

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Click or Tap image to Zoom
This item is no longer available.
- Smooth arc provides strong welds on 18-ga. sheet meal to 1/4in. thick steel
- 20% duty cycle @ 70 Amps
- Continuous amperage control permits exact temperature setting for consistent welds
- 10 to 90 Amp output supports mild steel stick electrode diameters from 1/16in. to 1/8in.
- Compact size and weight for easy storage, handling and mobility
Prop 65 Warning: See Details
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) Welder (1) 10ft. cable with ground clamp (1) 10ft. cable with electrode holder (1) 6ft. input cable with 15 Amp plug (1) Shoulder strap
Downloads

Features + Benefits
- Smooth arc provides strong welds on 18-ga. sheet meal to 1/4in. thick steel
- 20% duty cycle @ 70 Amps
- Continuous amperage control permits exact temperature setting for consistent welds
- 10 to 90 Amp output supports mild steel stick electrode diameters from 1/16in. to 1/8in.
- Compact size and weight for easy storage, handling and mobility
- Includes a shoulder strap for portability/easy carrying
Key Specs
| Attribute | Specification |
|---|---|
item# | 68388 |
Brand | Lincoln Electric |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 14.4 LB |
Volts | 120 |
Max. Amps | 90 |
Power Type | DC |
Multi-process | No |
Spool Gun Included | No |
Welding Processes | Stick, TIG |
Max. Weld Thickness | 0.13 in |
| Attribute | Specification |
|---|---|
Duty Cycle | 20% At 70a |
Weldable Materials | Mild Steel, Stainless Steel, Aluminum |
Min. Amps | 10 |
Cart Included | No |
Power Cord Length | 6 ft |
Clamp Cable Length | 10 ft |
Electrode Cable Length | 10 ft |
Shielding Gas Required | No |
Product Weight | 17.0000 lb |
Dimensions L x W x H (in.) | 9.0 x 4.5 x 14.0 in |
Reviews
Questions & Answers
Questions
-
· 2 years ago
What metal thickness can this weld?
1 answer-
ProductExpert11· 2 years ago
Helpful?
-
-
· 2 years ago
What outlet can I use
1 answer-
ProductExpert11· 2 years ago
The welder will have a 15 Amp 125 volt three prong NEMA 5-15P plug.
Helpful?
-
-
· 2 years ago
What size circuit breaker do I need for this welder? I assume double 30 Amp? (Both White and Black connection to the breaker?)
1 answer-
ProductExpert11· 2 years ago
The model K2789-2 will require a 20 amp breaker.
Helpful?
-
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.
Compare with Most Popular in Arc + Stick Welders
See All Arc + Stick Welders
See All Lincoln Electric Arc + Stick Welders
Currently Viewing This Product
Shipping: Sold Out
Item # 49520
$39.99Shipping:
Not availableIn Store Only:
Item # 99339
$5949.99Shipping:
Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
- $1949.99
Shipping:
Free shipping (lower 48 states) - Factory shippedStore Pickup:
Not available - online only
Specifications
120
-
Multi
120/230
90
-
300
155
DC
-
DC
DC
No
-
No
-
No
-
-
-
Stick, TIG
-
-
Stick, TIG
0.13 in
-
0.25 in
-
20% At 70a
-
30%
75A/23.0V/100%
Mild Steel, Stainless Steel, Aluminum
-
-
-
10
-
35
5
No
-
-
-
6 ft
-
10 ft
-
10 ft
-
-
-
10 ft
-
-
-
No
-
-
-
17.0000 lb
-
350.0000 lb
-
9.0 x 4.5 x 14.0 in
22.25 x 6.625 x 3 in
17.0 x 19.0 x 21.5 in
-





