Ariens 52408200 02406600 GEAR CASE LRG BORE W S&B ALUMAriens 52408200 – Replacement MPN: 52407500,02465500,02465400,02438000,02437900,02406700,02406600 GEAR CASE-LRG BORE W/S&B-ALUM Genuine Ariens Part # 52408200. Ariens 52408200 02406600 GEAR CASE LRG BORE W S&B ALUM. Ariens Part Number: 52408200 Replaces Previous MPN: 02406600, 02406700, 02437900, 02438000, 02465400, 02465500 Compatible with the following Models: Ariens ST924.