A Texas plumber who received death threats after his old pickup truck surfaced in Syria as a gun-equipped killing machine used by jihadis is now suing the dealership that bought the vehicle.

Mark Oberholtzer said he sold the 2005 Ford F-250 to a Ford dealership in 2013 as part of a trade-in deal for a newer model. The name and phone number of his Mark-1 Plumbing business in Texas City were still printed on the truck.

Oberholtzer’s truck was then auctioned off and shipped to Turkey, according to the lawsuit. It re-appeared a year later in a video from the Ansar al-Deen Front terrorist group, which showed extremists firing a high-powered gun that was mounted on the bed of the truck. The plumbing business’s decals were never removed.

The lawsuit, filed Wednesday, is seeking damages for “substantial lost revenues and business good will” after Oberholtzer closed Mark-1 Plumbing offices for a week because he was getting “harassing” phone calls.

“All this while, Mark-1’s revenues were lost and the company’s reputation and standing in the business and local community was irretrievably damaged,” the lawsuit adds.

The lawsuit also claims that an employee from Mark-1 Plumbing tried to peel off the truck’s decal before the sale, but a worker at the dealership said doing so would damage the vehicle’s paint and he had something that works better for removal. The dealership never covered the decals, Oberholtzer claims.

He says he's owned his plumbing business for 33 years and his son said the family has no ties to terror.

"How it ended up in Syria, I'll never know," Oberholtzer told The Galveston Daily News.

AutoNation Ford Gulf Freeway did not immediately return a phone call from FoxNews.com.