Sadler, who celebrated his 39th birthday on Wednesday, withstood several changes on a restart with three-laps to go in Saturday's Aaron's 312 to score his 10th career NASCAR Nationwide Series victory at Talladega Superspeedway.
With some help from NASCAR Sprint Cup Series regular David Ragan, the two veterans were able to overpower Sunoco rookie Chris Buescher and JRM Motorsports pilot Regan Smith on the outside lane to send the Emporia, Va., native to victory lane for the first time since 2012.
"We stayed on the bottom, stuck to our guns, David Ragan did a good job of pushing us and we were able to hold those guys off at the end," a jubilant Sadler said.
"It means a lot for me to get this JGR team to victory lane. They've worked their butts off last year and we weren't able to reward them. We have a lot of momentum on our side, we let one get away from us at Darlington, so to come back here and get one for all of our sponsors this is really good."
Sadler, in his sixth Talladega Nationwide Series start, was a factor from the drop of the green flag, but had to dodge several on-track incidents and climb from the bottom half of the top-10 after his final trip to pit lane, following a caution on Lap 83 for a solo spin by Eric McClure.
Pit strategy shuffled the leaders, with Ty Dillon inheriting the lead after a two-tire stop.
Dillon would lead the field back to green, before Sadler and Sunday's pole sitter Brian Scott duked it out three laps later for possession of the lead.
The yellow provided another opportunity for the field to come to pit road for tires, fuel and adjustment, with Blaney leading the parade back to green flag conditions.
Meanwhile, Sadler and Scott came roaring back to the front line, shuffling for the lead over the next 10 laps before Scott was tapped by the No. 6 of Trevor Bayne on Lap 63, igniting a 10-car incident.
Sadler would maintain the lead on the restart until McClure's issue, which gave the lead to Daytona winner Regan Smith.
Smith would lead the field over the next 20 laps before David Starr driving for TriStar Motorsports would use a push following Lap 104 restart to assert himself into first, but not before rookie sensation Chase Elliott took his turn at the front on the same lap that Chad Boat wrecked on the backstretch on Lap 108.
With a majority of the field staying out, Elliott, Starr and Sadler would become the three drivers out front and found themselves battling for the win inside the final five laps.
Following the restart, the momentum of the lead pack would be stalled on Lap 113 when Ryan Blaney lost control of his No. 22 Ford and collected five others.
Quickly, NASCAR would display the red flag to ensure a scheduled distance conclusion. After a nine minute pause, the field returned to caution.
With the green flag in the air for the final time, Sadler with pressure from all angles would fend off his challengers to deliver Joe Gibbs Racing its third win of 2014.
Buescher was a career-best second ahead of Regan Smith, Ragan and Hornish Jr. to make up the top-five.
"Congratulations to Elliott Sadler, but this Roush Performance Mustang was awesome all weekend," said Buescher, after his Nationwide restrictor plate debut.
"We knew we had a good piece, we just had to pull through with it. Regan Smith pushed me at the end. That's about all you can ask for, because I'm still very new to this speedway racing, so to be able to pull off a second is really cool to me. We got the finish we deserved today."
After nine races, Elliott continues to lead the NASCAR Nationwide Series standings ahead of Sadler (minus-1), Smith (-3), Bayne (-31) and Dillon (-31).
Next up for the NASCAR Nationwide Series is a trip to Iowa Speedway for the running of the Get To Know Newton 250 presented by Sherwin-Williams on Sunday, May 18.