Paul Benson took his goal tally to 22 as Dagenham moved a step closer to the title by thrashing Kidderminster.
The hosts went ahead on eight minutes when Michael Blackwood drilled into the corner but Daggers were level two minutes later via Benson's low finish.
James Constable hit the post for Harriers before Jeff Kenna sliced into his own net to give Daggers the lead.
Benson's stunning 30-yard volley made it 3-1 before he turned provider for Ben Strevens to net the fourth.
Kidderminster: Bevan, Kenna, Creighton, Whitehead, Harkness, Russell (Smikle 73), Penn, Hurren, Blackwood, Constable (Reynolds 87), Hay (White 87).
Subs Not Used: Taylor, Sedgemore.
Booked: Harkness, Whitehead.
Goals: Blackwood 8.
Dag & Red: Roberts, Foster , Boardman, Uddin, Griffiths, Strevens (Moore 89), Rainford, Southam (Leberl 88), Sloma, Benson, Saunders.
Subs Not Used: Eyre, Lettejallow, Wallis.
Booked: Uddin, Saunders.
Goals: Benson 10, Kenna 59 og, Benson 62, Strevens 84.
Ref: G Scott (Devon).