| ST03413CH | — | Yesteryear Aviation Inc | — | — | unknown | OEM |
| YA-564-D | Piston Ring Compression Standard Bore | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-564-DXA | Piston Ring Compression Plus + .010 Oversize Bore | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-564-DXD | Piston Ring Compression Plus + .020 Oversize Bore | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-564-DXX | Piston Ring Compression Standard Bore + .010 Width | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-565-D | Piston Ring Oil Scrapper Standard Bore Diameter | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-565-DXA | Piston Ring Oil Scrapper +.010 Bore Diameter | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-565-DXD | Piston Ring Oil Scrapper + .020 Bore Diameter | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-565-DXX | Piston Ring Compression Standard Bore + .010 Width | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-566-D | Piston Ring Oil Control Standard Bore | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-566-DXA | Piston Ring Oil Control +.010 Oversize Bore | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-566-DXD | Piston Ring Oil Control + .020 Oversize Bore | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-566-DXX | Piston Ring Oil Control Standard Bore + .010 Width | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |
| YA-A75N1-2903-1 | Plate Engine Control Idler | Yesteryear Aviation Inc | — | 20 | unknown | PMA |
| YA-A75N1-2903-2 | Plate Engine Control Idler | Yesteryear Aviation Inc | — | 76 | Engine Systems | PMA |
| YA-A75N1-2904-1 | Idler Assembly Engine Control | Yesteryear Aviation Inc | — | 76 | Engine Systems | PMA |
| YA-A75N1-2904-2 | Idler Assembly Engine Control | Yesteryear Aviation Inc | — | 76 | Engine Systems | PMA |
| YA-A75N1-3917 | Battery Tray Assembly | Yesteryear Aviation Inc | — | 20 | unknown | PMA |
| YA-A75N1-3917-2 | Battery Tray Plate | Yesteryear Aviation Inc | — | 24 | Electromechanical | PMA |
| YA-A75N1-3919 | Bolt, Battery Hold Down | Yesteryear Aviation Inc | — | 24 | Electromechanical | PMA |
| YA-C123LT | Extrusion Metallic Angle | Yesteryear Aviation Inc | — | 53 | Unknown | PMA |
| YA-C180T | Extrusion Metallic Angle | Yesteryear Aviation Inc | — | 53 | Unknown | PMA |
| YA-C204T | Extrusion Metallic Angle | Yesteryear Aviation Inc | — | 53 | Unknown | PMA |
| YA-C250T | Extrusion Mettalic Angle | Yesteryear Aviation Inc | — | 53 | Unknown | PMA |
| YA-E75-3413 | Rack-Rudder Pedal Adjusting | Yesteryear Aviation Inc | — | 27 | Flight Controls | PMA |
| YA-K-1508 | Extrusion | Yesteryear Aviation Inc | — | 20 | unknown | PMA |
| YA1000-12 | Smoke System Mounting plate 12 Volt | Yesteryear Aviation Inc | — | — | Consumables / Hardware | PMA |
| YA1000-24 | Smoke System Mounting Plate 24 Volt | Yesteryear Aviation Inc | — | — | Consumables / Hardware | PMA |
| YA10001 | Angle Bracket Smoke System | Yesteryear Aviation Inc | — | 20 | unknown | PMA |
| YA1027-B | Gasket - Fuel Drive Mount | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1027-C | Gasket - Generator Mount | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1045-C | Gasket - Crankcase Breather | Yesteryear Aviation Inc | — | 72 | Engine / Fuel | PMA |
| YA1076 | Gasket - Magneto Drive-Case | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1077-B | Gasket - Thrust Bearing Cap | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA110001 | Gasket - Rocker Cover Paper | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA110001-R | Gasket - Rocker Cover Rubber | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1111-C | Packing- Push Rod Tube | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1112-BC | Hose-Push Rod Tube | Yesteryear Aviation Inc | — | 27 | Flight Controls | PMA |
| YA1169-B | Gasket - Accessory Case Breather | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1183-B | Gasket - Rear Oil Sump Paper | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1183-R | Gasket-rear Sump Rubber | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1185-B | Gasket - Front Oil Sump Paper | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1185-R | Gasket - Front Oil Sump Rubber | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1396-B | Gasket - Starter Drive | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA140 | Seal - Valve Adjusting Screw | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1503-B | Gasket - Air Box to Carburetor | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA159 | Gasket - Governor Mount Plate | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1691-C | Gasket - Fuel Pump Mount | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA1699-C | Gasket - Vacuum Pump Mount | Yesteryear Aviation Inc | — | 85 | Consumables / Hardware | PMA |
| YA171 | Gasket, Oil Sump Connecting | Yesteryear Aviation Inc | — | 85 | Engine / Fuel | PMA |