Crabtree signed a four-year, $35 million contract extension Wednesday, a source informed of the deal told NFL Media Insider Ian Rapoport. The deal includes nearly $19 million guaranteed, Rapoport reported.
"This is where I belong ... I'm a Raider, man," Crabtree said after signing the extension.
ESPN's Adam Caplan first reported the agreement.
Crabtree has turned his career around in Oakland after a injury-ravaged 2013 and a disappointing 2014 in San Francisco.
Regaining his 2012 form as a sure-handed possession receiver, effective red-zone weapon and run-after-catch threat, the 28-year-old wideout is on pace for 88 receptions, 1,013 yards and nine touchdowns.
After deconstructing Oakland's roster early in his tenure, general manager Reggie McKenzie deserves credit for finally showing tangible signs of progress on his reconstruction project this year.