390J8 Poly-V rib belt. 8 Ribs. 39” (991mm) Length - PJ991 Metric belt. Poly-V (Micro V) ribbed belts are designed to replace OEM belts on extra heavy-duty applications such as 390J8 sander/planer belts, compressor belts, 390J8 (8-Rib PJ991) fitness drive belts, and electric motor drive belts. AKA: J8-390 Belt.
Replaces OEM Drive Belt: