40X20, S40X20, WSS104020. Uses X Series Weld On Hubs. Fits #40 Chain. ✓ New Part. Part Details. Replaces Part Numbers How do I know if my order was submitted properly?. Expert Service.

40X20, S40X20, WSS104020. Uses X Series Weld On Hubs. Fits #40 Chain. ✓ New Part. Part Details. Replaces Part Numbers How do I know if my order was submitted properly?. Expert Service.

40X20, S40X20, WSS104020. Uses X Series Weld On Hubs. Fits #40 Chain. ✓ New Part. Part Details. Replaces Part Numbers How do I know if my order was submitted properly?. Expert Service.