The Hogs got Jake Wise back behind the plate and got a solid outing out of normal Sunday starter Chris Oliver to take the series from the Aggies in front of an announced crowd of 6,673 at Baum Stadium.
A four-run eighth inning, aided by a two-run blast from first baseman Eric Fisher, was the difference after Texas A&M had tied the game in the top half.
Oliver was starting in place of Jalen Beeks, who skipped his normal Saturday spot in the rotation because of arm soreness.
The junior from Farmington went seven innings, allowing two runs on five hits, walking one and striking out three on 93 pitches. He improved to 6-4 on the season.
The Hogs climbed out to an early 3-0 lead, scoring two in the second by way of a A&M wild pitch and a RBI single from Bobby Wernes.
In the third, Andrew Benintendi uncorked one into the left center gap, plating Michael Bernal for the third run.
A&M scored its first run in the top of the fourth, but Oliver got a double play out of his defense to escape without any more damage.
Arkansas had a chance to extend its lead in the bottom of the sixth on what appeared to be an Eric Fisher sacrifice fly, but Benintendi was tagged out at second base before Brian Anderson had crossed home plate.
The Aggies scored one in the seventh on a RBI double by Jonathan Moroney, but Oliver induced a groundout to end the inning.
A&M knotted the game 3-3 in the top of the eighth on a wild pitch by Zach Jackson, but Jacob Stone came to Jackson's aid and got out of the inning.
In the bottom half of the frame, the Hogs unloaded on the Aggies, which included the aforementioned Fisher bomb to right center. Benintendi had a RBI to get things started, aided by an Aggie throwing error.
Anderson made it 5-3 with a RBI single up the chute before Fisher launched his eighth homer of the season.
Earlier in the day, Fisher and former Razorback and current assistant Tim Carver participated in UA graduation ceremonies, earning degrees.
The Hogs will look for the sweep tomorrow at 1:05 p.m.