MANUFACTURER PART NUMBER: RAY780870R. GRAND CHEROKEE 80TH ANNIVERSARY 6 CYL 3.6L 2021. GRAND CHEROKEE 80TH ANNIVERSARY 8 CYL 5.7L 2021. GRAND CHEROKEE SRT 8 CYL 6.4L 2013-2021. GRAND CHEROKEE SUMMIT 6 CYL 3.6L 2014-2021.