The website Ramallah News, which published the security camera video on its Facebook page on Tuesday, says it was filmed a day earlier in the village of Kafr Laqif, near Qalqilya in the northern West Bank.
At 30 seconds, as the jeep drives off, an object can be seen flying from the back of the vehicle towards the young men, just before the explosion.
Stun grenades, also known as flashbang grenades or sound bombs, are meant to be used to temporarily disorient an enemy.
The Israeli human rights group B’Tselem, says stun grenades are “a predominant crowd control weapon” used by Israeli occupation forces.
The US-made weapons “are designed to cause panic, thereby enabling security forces to overpower people,” it adds.