That is a record for one team versus a single opponent in the competition.
The Reds captain nodded in a Dominik Szoboszlai corner delivery deep into stoppage time at Hill Dickinson Stadium to clinch a memorable 2-1 victory.
In doing so, Van Dijk emulated Ronny Rosenthal, Gary McAllister, Dirk Kuyt, Sadio Mane and Divock Origi with last-gasp Merseyside derby moments in the Premier League.
In March 1993, Rosenthal came off the bench to slot in a final-minute winner against the Blues at Anfield as Graeme Souness’ side prevailed 1-0.
Eight years later, it was McAllister’s turn, this time at Goodison Park. The midfielder stunned everyone with a long-range free-kick to settle a thriller 3-2 in Liverpool’s favour.
It was a penalty for Kuyt - his second of the match - when he produced his own derby decider in a feisty encounter on Everton’s patch in October 2007, won 2-1.
Kopites got an early Christmas gift across Stanley Park in December 2016, with Mane pouncing on a Daniel Sturridge strike off the post in added time to secure a 1-0 win.
The same scoreline materialised at Anfield two years later as Origi reacted the most adeptly to a Van Dijk hit that looped onto the crossbar and was fumbled by Jordan Pickford.
And now Van Dijk has made it a brilliant half-dozen with his close-range header to give the Reds bragging rights from their maiden visit to Hill Dickinson Stadium.
