Ciaran Clark and a Salomon Rondon own goal drew the Toon level late in the second half.
West Brom had enjoyed the play up to that point and took the lead through Hal Robson-Kanu’s twisting header.
And it looked like plain sailing for the Baggies when Sam Field made it 2-0 at the far post.
But Benitez’s side were having none of it and came to life after captain Clark halved the deficit.
And the equaliser came when Rondon deflected a Matt Ritchie strike into his own net.
Full report to follow…