Busch Shaft Seal, Double Part# 487501866

This is the Viton O-ring, size 102 mm x 3 mm. It is part number 486000650. This ring is used on Busch Panda pump models WV1000B, WV1000C, WV1500B, and WV1500C . Made from tough Viton (FKM) rubber, it resists high heat and harsh chemicals. You will find this exact O-ring inside major repair kits like the Seal Kit 990520941 for WV1500B/C pumps, the Gasket Kit 990000503 for WV1000B/C pumps, and the Overhaul Kit 994520940 . If your pump is leaking, this is the right part.

This is the Viton O-ring, size 295 mm x 5 mm. It is part number 486000648. This giant ring is used on Busch Panda pump models WV1000B, WV1000C, WV1500B, and WV1500C . Made from tough Viton (FKM) rubber, it resists high heat and harsh chemicals.