![75030 Lycoming IO-540-D4A5 Starter Ring Gear Assembly (Teeth: 149, 3 Holes) 75030 Lycoming IO-540-D4A5 Starter Ring Gear Assembly (Teeth: 149, 3 Holes)](https://drja5ehfg81wp.cloudfront.net/75030-Lycoming-IO-540-D4A5-Sta-814b4e54349b8568cd42ba66561d3331.jpg) | 75030 Lycoming IO-540-D4A5 Starter Ring Gear Assembly (Teeth: 149, 3 Holes) | 532.00 |
![74324 Lycoming IO-540-D4A5 Alternator Bracket 74324 Lycoming IO-540-D4A5 Alternator Bracket](https://drja5ehfg81wp.cloudfront.net/74324-Lycoming-IO-540-D4A5-Alt-c21e0c9e4d00559337cb776af6799946.jpg) | 74324 Lycoming IO-540-D4A5 Alternator Bracket | 140.00 |
![Superior Lycoming Piston SL10545, 14D23907 fits IO-540, TIO-540 Superior Lycoming Piston SL10545, 14D23907 fits IO-540, TIO-540](https://drja5ehfg81wp.cloudfront.net/Superior-Lycoming-Piston-SL105-edd46c5516988bc59e0475c979ad1214.jpg) | Superior Lycoming Piston SL10545, 14D23907 fits IO-540, TIO-540 | 37.00 |
![Superior Lycoming Piston SL10545, 14D23907 fits IO-540, TIO-540 Superior Lycoming Piston SL10545, 14D23907 fits IO-540, TIO-540](https://drja5ehfg81wp.cloudfront.net/Superior-Lycoming-Piston-SL105-140767e9cc34f8c2fdfc5a8e35089b3b.jpg) | Superior Lycoming Piston SL10545, 14D23907 fits IO-540, TIO-540 | 27.00 |
![26345-005 (USE: 26345-008) Lycoming IO-540-D4A5 Exhaust Muffler LH w Shroud 26345-005 (USE: 26345-008) Lycoming IO-540-D4A5 Exhaust Muffler LH w Shroud](https://drja5ehfg81wp.cloudfront.net/26345-005-USE-26345-008-Lyc-897130f862638311a2356cd1582518af.jpg) | 26345-005 (USE: 26345-008) Lycoming IO-540-D4A5 Exhaust Muffler LH w Shroud | 476.00 |
![26345-006 Lycoming IO-540-D4A5 Exhaust Muffler RH w Shroud 26345-006 Lycoming IO-540-D4A5 Exhaust Muffler RH w Shroud](https://drja5ehfg81wp.cloudfront.net/26345-006-Lycoming-IO-540-D4A5-cbf4c1de1a5e47eb3ba54e9f8e33c4ca.jpg) | 26345-006 Lycoming IO-540-D4A5 Exhaust Muffler RH w Shroud | 364.00 |
![Avco LYCOMING OEM IO360 IO540 Engine Rocker Valve Cover RED Powder Coat PAIR Avco LYCOMING OEM IO360 IO540 Engine Rocker Valve Cover RED Powder Coat PAIR](https://drja5ehfg81wp.cloudfront.net/Avco-LYCOMING-OEM-IO360-IO540-73904d40ce214d3c6c2009324e6cfec7.jpg) | Avco LYCOMING OEM IO360 IO540 Engine Rocker Valve Cover RED Powder Coat PAIR | 128.08 |
![Lycoming IO-540 Engine Parts Manual Lycoming IO-540 Engine Parts Manual](https://drja5ehfg81wp.cloudfront.net/Lycoming-IO-540-Engine-Parts-M-db258db2af0fa73e3458d69470172f95.jpg) | Lycoming IO-540 Engine Parts Manual | 91.31 |
![Lycoming Push Rod P/N 15F19957-34 (73434) (O/IO-360 & I/IO-540, 480) Lycoming Push Rod P/N 15F19957-34 (73434) (O/IO-360 & I/IO-540, 480)](https://drja5ehfg81wp.cloudfront.net/Lycoming-Push-Rod-PN-15F19957-ece1ead8bb8997d468bfed65661677f3.jpg) | Lycoming Push Rod P/N 15F19957-34 (73434) (O/IO-360 & I/IO-540, 480) | 30.00 |
![Rockwell Commander 114 Exhaust as core 645000-501 and 645001-501 Lycoming IO-540 Rockwell Commander 114 Exhaust as core 645000-501 and 645001-501 Lycoming IO-540](https://drja5ehfg81wp.cloudfront.net/Rockwell-Commander-114-Exhaust-6e972fc893c8913e0314df0eafd49964.jpg) | Rockwell Commander 114 Exhaust as core 645000-501 and 645001-501 Lycoming IO-540 | 240.00 |
![PIPER PA-23-250 AZTEC LYCOMING IO-540 C4B5 RIGHT EXHAUST CROSS OVER PIPE TUBE PIPER PA-23-250 AZTEC LYCOMING IO-540 C4B5 RIGHT EXHAUST CROSS OVER PIPE TUBE](https://drja5ehfg81wp.cloudfront.net/PIPER-PA-23-250-AZTEC-LYCOMING-4c2fd82802813696f9d3ee4866120424.jpg) | PIPER PA-23-250 AZTEC LYCOMING IO-540 C4B5 RIGHT EXHAUST CROSS OVER PIPE TUBE | 224.95 |
![Piper PA-23-250 Aztec / Lycoming IO-540 Alternator Mounting Link 75380 Piper PA-23-250 Aztec / Lycoming IO-540 Alternator Mounting Link 75380](https://drja5ehfg81wp.cloudfront.net/Piper-PA-23-250-Aztec-Lycomi-a0c75d7b13e1752411d88b183c574eae.jpg) | Piper PA-23-250 Aztec / Lycoming IO-540 Alternator Mounting Link 75380 | 65.25 |
![Lycoming IO-540 Camshaft Gear Lycoming IO-540 Camshaft Gear](https://drja5ehfg81wp.cloudfront.net/Lycoming-IO-540-Camshaft-Gear-9d6ef088cbb8fe99257191cc19bbb210.jpg) | Lycoming IO-540 Camshaft Gear | 95.00 |
![NOS Lycoming IO-540 Engine Valve Guide 69693 NOS Lycoming IO-540 Engine Valve Guide 69693](https://drja5ehfg81wp.cloudfront.net/NOS-Lycoming-IO-540-Engine-Val-48cbe33787332e93d3f83fbd023ba0af.jpg) | NOS Lycoming IO-540 Engine Valve Guide 69693 | 43.50 |
![Lycoming / Superior Cylinder Piston IO-360 / IO-540 / IO-720 SL10207-P10 Lycoming / Superior Cylinder Piston IO-360 / IO-540 / IO-720 SL10207-P10](https://drja5ehfg81wp.cloudfront.net/Lycoming-Superior-Cylinder-P-29c04244a3dcb7ab89e0370f7dd485e5.jpg) | Lycoming / Superior Cylinder Piston IO-360 / IO-540 / IO-720 SL10207-P10 | 130.50 |
![Engine Mount - Aerostar - Lycoming IO-540-S1A5 - PN: 300022-33 Engine Mount - Aerostar - Lycoming IO-540-S1A5 - PN: 300022-33](https://drja5ehfg81wp.cloudfront.net/Engine-Mount-Aerostar-Lyco-f3dfaaffe7cd0d8594aec40d5636348e.jpg) | Engine Mount - Aerostar - Lycoming IO-540-S1A5 - PN: 300022-33 | 625.00 |
![Rapco Vacuum Pump Cooling Shroud - Lycoming IO-540 - Aerostar 600A - Lot # B439 Rapco Vacuum Pump Cooling Shroud - Lycoming IO-540 - Aerostar 600A - Lot # B439](https://drja5ehfg81wp.cloudfront.net/Rapco-Vacuum-Pump-Cooling-Shro-40cee2d871812b29674363d1631dd396.jpg) | Rapco Vacuum Pump Cooling Shroud - Lycoming IO-540 - Aerostar 600A - Lot # B439 | 50.00 |
![Lycoming IO-540 Intercylinder Baffle Assy P/N 73975 Lycoming IO-540 Intercylinder Baffle Assy P/N 73975](https://drja5ehfg81wp.cloudfront.net/Lycoming-IO-540-Intercylinder-4568d8bfaaa1e2f61793b141255a49cc.jpg) | Lycoming IO-540 Intercylinder Baffle Assy P/N 73975 | 30.00 |
![LYCOMING 14D23912 STD PISTON ALT # 75089 O/IO-320, O/IO-360, O/IO-540 LYCOMING 14D23912 STD PISTON ALT # 75089 O/IO-320, O/IO-360, O/IO-540](https://drja5ehfg81wp.cloudfront.net/LYCOMING-14D23912-STD-PISTON-A-270c98ec93e0cbafaf24d88c258900c8.jpg) | LYCOMING 14D23912 STD PISTON ALT # 75089 O/IO-320, O/IO-360, O/IO-540 | 81.00 |
![310009-513 Lycoming IO-540 Airbox Assembly 310009-33, 310009-73, 310009-63 310009-513 Lycoming IO-540 Airbox Assembly 310009-33, 310009-73, 310009-63](https://drja5ehfg81wp.cloudfront.net/310009-513-Lycoming-IO-540-Ai-244485aceb233facd1060ffc13afd234.jpg) | 310009-513 Lycoming IO-540 Airbox Assembly 310009-33, 310009-73, 310009-63 | 499.00 |
![Lycoming IO-540-S1A5 Complete Oil Sump Assembly Lycoming IO-540-S1A5 Complete Oil Sump Assembly](https://drja5ehfg81wp.cloudfront.net/Lycoming-IO-540-S1A5-Complete-731082c9deb9c156ce5453226a6af5de.jpg) | Lycoming IO-540-S1A5 Complete Oil Sump Assembly | 2,500.00 |
![Hartzell F-6-5A F-6-5 Propeller Governor removed from Lycoming IO540 PA23 Aztec Hartzell F-6-5A F-6-5 Propeller Governor removed from Lycoming IO540 PA23 Aztec](https://drja5ehfg81wp.cloudfront.net/Hartzell-F-6-5A-F-6-5-Propelle-38d44dd8a6a120479ec1a0bbdee92c5a.jpg) | Hartzell F-6-5A F-6-5 Propeller Governor removed from Lycoming IO540 PA23 Aztec | 750.00 |
![D046-2 Robinson R44II Lycoming IO-540-AE1A5 Strut Weldment LH D046-2 Robinson R44II Lycoming IO-540-AE1A5 Strut Weldment LH](https://drja5ehfg81wp.cloudfront.net/D046-2-Robinson-R44II-Lycoming-04e560e6eb0e91bc5d896c895524d509.jpg) | D046-2 Robinson R44II Lycoming IO-540-AE1A5 Strut Weldment LH | 252.00 |
![PIPER PA-23-250 AZTEC LYCOMING O/IO-540 ACCESSORY DRIVE GEAR AND HOUSING ASSY PIPER PA-23-250 AZTEC LYCOMING O/IO-540 ACCESSORY DRIVE GEAR AND HOUSING ASSY](https://drja5ehfg81wp.cloudfront.net/PIPER-PA-23-250-AZTEC-LYCOMING-728b4f593772c7a98afa2810439b888e.jpg) | PIPER PA-23-250 AZTEC LYCOMING O/IO-540 ACCESSORY DRIVE GEAR AND HOUSING ASSY | 229.95 |
![Hartzell F-8-5A Propeller Governor with Prop Sync - Lycoming IO-540 Hartzell F-8-5A Propeller Governor with Prop Sync - Lycoming IO-540](https://drja5ehfg81wp.cloudfront.net/Hartzell-F-8-5A-Propeller-Gove-cd55be87f0ac1fae9998d215fe4acbc1.jpg) | Hartzell F-8-5A Propeller Governor with Prop Sync - Lycoming IO-540 | 950.00 |
![PIPER PA-23-250 AZTEC C AIRCRAFT RH BAFFLE/AFT ASSY-LYCOMING IO-540-C4B5 ENGINE PIPER PA-23-250 AZTEC C AIRCRAFT RH BAFFLE/AFT ASSY-LYCOMING IO-540-C4B5 ENGINE](https://drja5ehfg81wp.cloudfront.net/PIPER-PA-23-250-AZTEC-C-AIRCRA-3a4a08b0e2361c8253590973daacfe50.jpg) | PIPER PA-23-250 AZTEC C AIRCRAFT RH BAFFLE/AFT ASSY-LYCOMING IO-540-C4B5 ENGINE | 129.95 |
![9954200-5, 2254000-1 Lycoming IO-540-AB1A5 Exhaust Stack LH with Riser 9954200-5, 2254000-1 Lycoming IO-540-AB1A5 Exhaust Stack LH with Riser](https://drja5ehfg81wp.cloudfront.net/9954200-5-2254000-1-Lycoming-801ae85877eb7c3fcf377b8a066a70a3.jpg) | 9954200-5, 2254000-1 Lycoming IO-540-AB1A5 Exhaust Stack LH with Riser | 392.00 |
![2254003-23 Lycoming IO-540-AB1A5 Exhaust Stack Assy LH W/ Probe Holes 2254003-23 Lycoming IO-540-AB1A5 Exhaust Stack Assy LH W/ Probe Holes](https://drja5ehfg81wp.cloudfront.net/2254003-23-Lycoming-IO-540-AB1-97a96f006aa0880e1b4d806dc5df04f2.jpg) | 2254003-23 Lycoming IO-540-AB1A5 Exhaust Stack Assy LH W/ Probe Holes | 504.00 |
![LYCOMING O-360, IO-360, 0-540, IO-540 LYCOMING O-360, IO-360, 0-540, IO-540](https://drja5ehfg81wp.cloudfront.net/LYCOMING-O-360-IO-360-0-ba7002ae46e7d6cfe6268cc1fd028b12.jpg) | LYCOMING O-360, IO-360, 0-540, IO-540 "AIRBOAT" CYLINDER P/N 12427 | 450.00 |
![Lycoming 75030 Ring Gear IO-540 w/ electric prop heat Lycoming 75030 Ring Gear IO-540 w/ electric prop heat](https://drja5ehfg81wp.cloudfront.net/Lycoming-75030-Ring-Gear-IO-54-a0d4816c05350456cbf51dd4e30fb9b3.jpg) | Lycoming 75030 Ring Gear IO-540 w/ electric prop heat | 450.00 |