NBA star Dejounte Murray is a candidate for best brother ever -- the Spurs guard just gifted his sister a new car for her 18th birthday!!
DM broke it down on Tuesday via Instagram ... saying he promised his sis if she did well in school, got a job and passed her driver's test, he'd get her a new whip for her special day.
As it turns out, she did just that -- earning a 3.7 GPA, finding a job and getting her driver's license!!
"She did that so I had to stand on my words with actions," Murray said.
The 25-year-old All-Star showed off the big surprise for his sister on video ... poppin' up in Seattle to gift Jacaiyah, a brand new Honda ... saying "no more Uber!"
"I thank God for allowing me to do things like this," Murray said, "because I swear this type of stuff brings a smile to my face more than doing anything for MYSELF!!!"
Murray -- whose made over $35 million since 2016 -- says he didn't wanna just hand over a new car, but make her earn it with hard work ... just like he did to get into the NBA.
"I wanna use my hard working earning to help change the cycle I grew up on," Murray said, "and start a whole new cycle to where the kids know if they work hard and be good people good things will happen."
THANK YOU GOD For Putting Me In This Position. I’m Lost For Words But More Importantly I’m A Proud Big Brother. This What Making Honor Roll With A GPA 3.8 And Being The Most Respectful Young Man Get You!! I Love You Baby Brother!! 💯😥😓🖤🤘🏽🤟🏽💪🏽 This Is Only The Beginning!! 🎓🎓 pic.twitter.com/LAJfliGXim