Nobody looked happier than Anthony Davis and LeBron James. They'll take all the help they can get.
"Welcome back," Davis said they told Kuzma.
Davis had 24 points and 12 rebounds and Kuzma added a season-high 23 points on 9 of 16 shooting to push the Lakers (8-2) to their best 10-game start since 2010 and bounce back from a home loss to Toronto on Sunday.
James added 19 points, 11 assists and seven rebounds.
Phoenix (6-4) trailed for a big chunk of the fourth quarter but pushed ahead 113-111 on Devin Booker's fastbreak layup with 3:29 left. The Lakers responded with three straight 3-pointers -- one from James and two more from Kuzma -- to lead 120-113 and put the game out of reach.
Kuzma missed the first four games of the season this year because of an ankle injury he suffered during the summer while playing for USA basketball. He averaged 18.7 points last season but was scoring just over 10 per game until Tuesday's outburst.
"I've just got teammates who believe in me," Kuzma said. "We all believe in each other. We're a team and we pick each other up."
Los Angeles dominated in the paint with 70 points. Dwight Howard came off the bench to score 12 points and grab nine rebounds in 20 minutes. The Lakers had 39 assists on 51 made field goals.
"That is the secret for us," Lakers coach Frank Vogel said. "If you truly commit to the extra pass offensively and playing for each other, we are going to be near unbeatable. That was a really good team we beat tonight -- that's a really good win."
The Suns were led by Ricky Rubio and Booker, who both scored 21 points. Aron Baynes added 20 and Dario Saric had 18.
"Down the stretch we have to be better," Booker said. "Rebound better, execute better. We didn't do that tonight.
Davis scored 14 points as the Lakers took a 60-58 halftime lead. James added nine points and eight assists.
The Lakers' 3-point barrage in the final minutes ended a very close game for most of the night. Neither team ever led by double figures and there were 29 lead changes and 14 ties.
According to the Elias Sports Bureau that was the most lead changes in a Suns game since 2009.
Davis had another productive game despite taking "a shot" to the ribs during the first quarter. He went to the locker room to get it wrapped, but quickly returned and shot 9 of 17 from the field.
Davis said he wasn't sure if he'd play against Golden State, which is a quick turnaround on Wednesday. The 6-foot-10 forward said he would see how his body responded in the morning.
"I just want to play," Davis said. "It's tough for me to lead from the sideline."
Phoenix's Kelly Oubre Jr. had a rough night, scoring just one point in 19 minutes. He shot 0 of 5 from the field, including 0 of 4 from 3-point range. The bad shooting night snapped a career-high streak of scoring in double figures for 22 consecutive games.
Booker came into the game shooting 54.5% from the field, 53.2% on 3-pointers and 92.3% on free throws. He's still on his 50/50/90 pace after shooting 9 of 18 from the field against the Lakers. He also had nine assists on Tuesday.
Lakers: Vogel said before the game that Rajon Rondo (right calf strain) and Troy Daniels (sore left knee) were on 15-minute restrictions. Rondo had five points, six rebounds and seven assists in 14 minutes in his season debut. Daniels didn't play.
Suns: Rookie guard Ty Jerome missed his 10th straight game with a sprained right ankle. ... Baynes continued his good outside shooting with a 4 of 6 performance from behind the 3-point line. ... Frank Kaminsky had 16 points and nine rebounds in 23 minutes.
Lakers return home to host Warriors on Wednesday.
Suns host the Hawks on Thursday.
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LeBron: Kuzma is a 'huge piece of the Lakers' puzzle'
LeBron James reacts to Kyle Kuzma's big game in the Lakers' win vs. the Suns and how Kuzma's success will benefit the team moving forward.