“140,000 miles wipes out the appeal of the low price.”

Analysis

$18,999 looks tempting for a Lariat, until you see the 140,402 miles. That is 20k+ miles per year of use, which suggests heavy highway or commercial duty. The 10-speed automatic and twin-turbo EcoBoost are expensive to fix when they let go, and at 140k you are in the window where both become suspect.

A cheaper high-mile truck is only a deal if you budget for the repairs. Most buyers should keep looking.

Market Comparison

2018 F-150 Lariat models with 90k-110k miles list around $22,000-$25,000. This one is discounted for mileage, but 140k is past the point where the discount compensates for the risk.