The "Go Crazy" hitmaker showed off the tank-style SHERP ATV on Instagram late on Tuesday (24Nov20), and sources tell TMZ Kanye arranged for his manager, Bu Thiam, and other team members to personally deliver the present to Brown's home in Tarzana, California.
And it appears there was no other reason for the big surprise than to celebrate Brown's career success to date.
In a handwritten note to the R&B star, Kanye told his pal, "Congratulations to Chris Brown, 20 years in the game you have overcome many hurdles and obstacles, you deserve the recognition for all the hard work you have put in (sic)."
As he posed on top of the massive ATV for his Instagram photo, Brown simply captioned it, "THANK YOU KANYE @kanyewest."
Kanye has yet to publicly comment on the generous gift, but the SHERP ATV typically costs around $120,000 (£90,000).
Kanye West and Chris Brown collaborated on several projects in the past. In 2007, the duo joined forces on the song called "Down" from Breezy's studio album "Exclusive".
In 2016, Chris Brown returned the favor as he helped Kanye co-write the track "Waves" for Ye's studio installment "The Life of Pablo".