Leonard Fournette's car troubles seem to be officially behind him ... the Jaguars star just copped a plea deal in his car wash arrest case -- and he won't have to spend any time behind bars for the incident.
As we previously reported ... Fournette was busted last month after cops say he was speeding with illegal tint on his windows in Florida.
When cops pulled him over at the Easy Breezy Car Wash in Jacksonville ... they learned he was also driving on a suspended license and had a warrant out for his arrest stemming from a previous traffic violation -- so they cuffed him.
Fournette was hit with multiple charges including driving on a suspended license and was facing up to 60 days in jail.
But, the good news for the 24-year-old ... he paid off the fines from his previous traffic issues and when his attorney showed up in court Monday -- he struck a deal with prosecutors on the new charges too.
Court records show Fournette pled no contest to driving without a valid driver's license, and in exchange, his speeding and illegal tint charges were dropped.
Leonard was forced to pay roughly $300 in fines and court fees.
For their part, the Jaguars don't seem too concerned with the arrest ... head coach Doug Marrone told reporters just a couple of weeks ago he will NOT discipline the star halfback.