This is a hard plastic firewall grommet for 8, 4, and 6 AWG wire. It has a ip68 rating to help keep water that may splash onto the wire from entering the cab.
4 AWG - 6 AWG with no loom

8 AWG w/ flex loom

6-12mm inner diameter
IP68 waterproof rating

6-8 AWG Firewall Grommet - IP68

Name: 6-8 AWG Firewall Grommet - IP68
SKU: PG13.5

SKU: PG13.5

$3.25