Lincoln Power MIG 140 MP
#5 in 120 VFull review
A versatile 120 V shop welder for hobbyists and auto body work who want stick and TIG on the same box. Pick a dual voltage machine if you have 240 V and weld thicker steel.
Amazon $1,178.99$1,178.99
The Lincoln Power MIG 140 MP is the better MIG welder overall, rated 3.2 to 3.0. The Lincoln Power MIG 140 MP leads on processes. The Lincoln Power MIG 140 MP costs $34.34 less ($1,178.99 vs $1,213.33).
Miller Millermatic 142
#8 in 120 VFull review
A polished 120 V MIG for hobbyists who want Auto-Set and a long duty cycle on thin steel. Buyers on a budget get similar reach for much less.
Amazon $1,213.33$1,213.33
Prices were last checked November 1, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Lincoln Power MIG 140 MP for processes (MIG, flux-core, stick, lift TIG, takes a spool gun for aluminum vs MIG, flux-core, takes a spool gun for aluminum).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 120 V MIG welder; a clear win is highlighted. How we rank explains each one.
| Factor weight | Lincoln Power MIG 140 MP | Miller Millermatic 142 |
|---|---|---|
| Overall rating | 3.2/5 | 3.0/5 |
| Value 30% | 0 $8.42 per amp ($1,178.99, 140 A maximum) | 0 $8.67 per amp ($1,213.33, 140 A maximum) |
| Duty cycle 20% | 71 60% at 95 A, about 28% at full output | 82 60% at 100 A, about 31% at full output |
| Processes 15% | 100 MIG, flux-core, stick, lift TIG, takes a spool gun for aluminum | 60 MIG, flux-core, takes a spool gun for aluminum |
| Weight 10% | 57 34.5 lb | 60 33 lb |
| Warranty 25% | 50 3-year warranty on the machine | 50 3-year warranty on the machine |
Specifications
| Lincoln Power MIG 140 MP | Miller Millermatic 142 | |
|---|---|---|
| Output | ||
| Input voltage | 120 V | 120 V |
| Maximum output | 140 A | 140 A |
| Rated duty cycle | 60% at 95 A | 60% at 100 A, 40 °C |
| Thickest steel, one pass | - | 0.188 in |
| Processes and wire | ||
| Gas MIG | Yes | Yes |
| Stick | Yes | No |
| TIG | Lift TIG | No |
| Spool gun ready | Yes | Yes |
| Wire sizes | 0.025 to 0.045 in | 0.024 to 0.045 in |
| Synergic settings | No | Yes |
| Build | ||
| Weight | 34.5 lb | 33 lb |
| Warranty | 3 years | 3 years |
| Released | 2019-09 | 2023-09 |