Quick view Add to Cart Instructions for Installation of Shim Under Cylinder Block Pivot Post to Increase Service Life of Cylinder Block in 65WC06001 Pumps Document Part Number: Service Bulletin No. 56 Number of pages: 5Part Number: Service Bulletin No. 56Revision Date: 3-Oct-1958Description: Mfg By: NY Air Brake MSRP: Was: Now: $15.00