Quick view Add to Cart Replacement of Oil-Pressure Gage Lines with Flexible Hose Assembly Document Part Number: Service Bulletin No. 75, T.O. No. 01-40NC-66 Number of pages: 4Part Number: Service Bulletin No. 75, T.O. No. 01-40NC-66Revision Date: 25-Sept-1944 MSRP: Was: Now: $15.00