Kawhi Leonard missed a 12-footer with five seconds to play, and James threw a long pass to Cam Reddish for a dunk that punctuated a stunning victory for the Lakers in the rivals’ final regular-season game as co-tenants of their downtown arena.

The 39-year-old James was the center of it all, hitting five of his season-high seven 3-pointers while outscoring the Clippers by himself in the fourth quarter (19-16). He either scored or assisted on 11 of the Lakers’ 13 baskets in the final period.

“It’s just a feeling when you feel like everything you put up is going in,” James said. “I just kept it consistent. I wasn’t taking ill-advised shots. I stayed in the course of the offense. My teammates did a great job of continuing to find me, and I just tried to dictate the tempo, dictate the game. … It’s just a zone. Can’t really describe it. Wish you could stay in it forever.”

Leonard scored 26 points and James Harden had 23 points and nine assists for the Clippers, who lost back-to-back games for the first time since Dec. 23 after committing seven turnovers and allowing 39 points in that calamitous fourth quarter. The Clippers played without All-Star Paul George, who missed his second straight game with a sore left knee, and starting center Ivica Zubac, who was ill.

“It’s one game,” Clippers coach Tyronn Lue said. “Played well for three quarters. Didn’t finish the game. I never let one loss or a bad loss take away from what we’ve been doing and what we’ve built. It’s a tough loss because we were up 21 points, but this is a good team, and when you don’t take care of the basketball and you don’t do what you’re supposed to do, you lose.”

The Clippers led 98-77 in the opening minute of the fourth quarter, but James led a 29-8 run in just 7:34. Anthony Davis’ free throws tied it at 106- with four minutes to play, and James found Rui Hachimura for a go-ahead 3-pointer moments later.

D’Angelo Russell’s 3-pointer put the Lakers up 114-108 with 1:12 to play before Harden and Leonard scored on drives to the hoop while James missed a pair of shots for the Lakers. But Leonard’s last shot was off target, and James found Reddish for the capper to the delight of the thousands of Lakers fans in attendance at a “road” game.