Peter “Kid Chocolate” Quillin nearly lost his middleweight title when he weighed in at 161 1/2 pounds Friday for his Saturday title defense against Fernando Guerrero at Barclays Center in Brooklyn (on Showtime). The limit is 160.

Quillin was given two hours to lose the weight, and he did, weighing 160 on the second try. Had he not made it on that second attempt, he would have been stripped of his belt.

Guerrero initially was over, by .4 pounds. He, too, made it on his second try.

Quillin and Guerrero will be the main support bout underneath the Danny Garcia-Zab Judah junior welterweight title fight.

Quillin, 29, is 28-0 with 20 knockouts. He will be attempting to make his first successful title defense.

Guerrero, 26, is 25-1-1 with 19 knockouts. This will be the southpaw’s first shot at a major title.

“I’ve been waiting for this moment my whole life,” he said.