Luke Voit didn't have to give away his number to Gerrit Cole for free ... the NY Yankees stud tells TMZ Sports the team's new ace coughed over a SOLID prize for No. 45!!
"He hooked me up with something cool," Voit said.
Luke rocked the digits the past two seasons in New York ... but when Cole came over on a 9-year, $324 MILLION deal in free agency -- he asked the 29-year-old first baseman for the uni.
Turns out, Voit says Cole didn't come empty-handed either!!
As for what he got, Voit -- who ended up switching to No. 59 -- tells us he can't say exactly ... but did joke, "I should've had him buy me a house or something. Or, a car."
We also talked to Voit about his superhuman strength -- remember, the guy benched a 145-pound barbell with ONE ARM in 2018 -- and he tells us he's the strongest guy on the team.
In fact, he says his 2-rep max on the bench press is 365!!!
By the way, Luke also spoke with us about his new children's book, "Luke's Baseball Story" ... and the story sounds SUPER-cool.