A “burn cage” incinerator that is advertised to burn at 1,600 degrees was discovered at the Hollywood Hill mansion that singer D4vd was renting at the time the body of a teen girl was found in the trunk of his Tesla, according to a private detective hired by the property’s owner.

The incinerator, which was still boxed and unused, was discovered inside the Doheny Street residence by Steve Fischer, who was hired to comb through the $20,000-a-month pad by its owner.

The private detective revealed the disturbing discovery in a post on X Tuesday, describing it as something you “would expect to find on a farm rather than in a home in the Hollywood Hills.”

A “burn cage” incinerator that is advertised to burn at 1,600 degrees was discovered at the Hollywood Hill mansion that singer D4vd was renting. WWD via Getty Images

The incinerator, which was still boxed and unused, was discovered inside the Doheny Street residence by Steve Fischer, who was hired to comb through the $20,000-a-month pad by its owner. DR Power Equipment

The so-called burn cage was advertised to burn at 1,600 degrees, according to Fischer, who posted a photo of the box on social media.

On the box, it read, “professional power. Done right.”

Incinerators are illegal to use in LA County, he added.

“Some will argue that this item was intended as a prop for a video. If that were the case, it raises several obvious questions. Why would a 55-pound burn cage be delivered to a private residence instead of directly to a prop designer or production house?” Fischer wrote.

Dana Sauchelli

D4vd is being eyed in connection with the death of Celest Rivas-Hernandez (not pictured). Getty Images

“Why would it be ordered before departing on an extended world tour? And why was it never used in any video production?” he added.

D4vd — whose real name is David Austen Burke, 20 — was in the middle of his “Withered” world tour when the remains of Celeste Rivas-Hernandez, 14, were discovered in the trunk of a Tesla registered to the artist on Sept. 8.

The “Romantic Homicide” singer canceled the remaining dates of the tour, which was slated to include a performance at the Greek Theatre in Los Angeles.

The private investigator noted that other items were found in the home that could be used with the burn cage, but did not specify what those were.

Rivas-Hernandez’s body was discovered in the Tesla after tow lot workers smelled something foul coming from the car impound. The vehicle was parked less than half a mile from the Hollywood Hills rental property where the “burn cage” was delivered.

Cops raided the property and seized “several items of evidence” on Sept. 17, the LAPD said.

The property owner, Malden Trifunovic, hired a trash crew to haul away remaining clothing and boxes left behind, only after someone went to the home to retrieve items of D4vd’s.

The extent of D4vd’s relationship with Rivas-Hernandez has not been made public, but she spent significant time with him and has appeared in several photos with the singer.

An official cause of death has not been released by the Medical Examiner’s office yet, and so far, no arrests have been made.

Celeste Rivas Hernandez is in a black zip-up hoodie and jeans, wearing a cross necklace. BACKGRID

The Los Angeles Police Department is investigating the gruesome discovery of a young body inside an impounded Tesla at a tow yard in Hollywood. KABC

“Given that Celeste Rivas Hernandez’s remains were ultimately found in the Tesla trunk, the presence of an incinerator at the same residence associated with that vehicle necessarily raises questions about intent,” Fischer wrote in his post.

“The Burn Cage was not taken during the search warrant, and because it was not used it appears it’s not of importance to any possible criminal investigation. But we think it’s important context, even if not criminal,” he added.

The burn case was delivered to the Hollywood Hills address under a false name, according to the PI.