At OMB Warehouse, we strive to provide the greatest selection and quality of parts for your outdoor power equipment. Need other parts to complete your project? Check out our huge catalog - we have what you need .Replaces Echo 12520008561. Fits model PB-4600 blower. Replaces Echo 12520008561. Fits model PB-4600 blower. ECHO 12520008561 ECHO 12520008563 ZAMA C1M-K37D