Interestingly, Jaguars have arguably the strongest bite of any mammal*. Unlike the rest of the 'big cats'** -- which kill using a bite to neck / face (suffocation) -- Jaguars crush the skulls of their prey. They obliterate the skulls of the crocodilians they find, pierce their canines through the heavy temporal skull bones of Tapirs, and even crack open large turtle shells. Indeed, the word 'Jaguar' is derived from the Native American word 'yaguar', which translates approximately as, 'he who kills with one leap'.
In short, a Jaguar bite is rarely non-fatal.
Here endeth CCC's National Geographic testification.
*Although perhaps the Spotted Hyena might pip the Jaguar for bite force.
**The Jaguar isn't classified with the 'big cats' despite being similar in size to, but much stockier than, the Leopard.