| AEC633398 | Bearing, Crankshaft Rear | Airmotive Engineering Corp | Current | 2003-06-30 |
| AEC634501, AEC634501-1 (and oversizes up to .020) | Barrel, Cylinder, 5-1/4 Bore | Airmotive Engineering Corp | Current | 2006-10-16 |
| AEC634503 | Bearing, Main, Crankshaft | Airmotive Engineering Corp | Current | 2000-08-16 |
| AEC634570 | Breather Assy | Airmotive Engineering Corp | Current | 2007-11-20 |
| AEC635106 | Pin, Timing Indicator | Airmotive Engineering Corp | Current | 2007-11-20 |
| AEC635722 | Cylinder Assembly-New Barrel | Airmotive Engineering Corp | Historical | 1995-10-31 |
| AEC635815 | Stud, Locked In | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC635816 | Ring, Lock | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC635959 | Insert, Valve Seat, Exhaust | Airmotive Engineering Corp | Current | 2000-07-13 |
| AEC636242, AEC636242HC (and oversizes up to .040) | Guide, Valve, Exhaust | Airmotive Engineering Corp | Historical | 2006-10-16 |
| AEC636697 | Insert, Intake Seat | Airmotive Engineering Corp | Historical | 2004-05-16 |
| AEC637837 | Spring,-Valve Outer | Airmotive Engineering Corp | Current | 1997-12-09 |
| AEC638125 | Stud, Size-on-Size Lock Ring, Captive | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC639193 | Bushing, Counterweight | Airmotive Engineering Corp | Current | 2000-04-18 |
| AEC639389 | Shaftgear Assembly, Starter | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC639640 | Bearing, Connecting Rod | Airmotive Engineering Corp | Current | 2000-08-16 |
| AEC640482 | Stud, Size-on-Size Lock Ring, Captive | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC640518 (and oversizes up to .015) | Piston | Airmotive Engineering Corp | Current | 2006-10-16 |
| AEC640612 | Washer, .312 I.D. x .50 O.D. | Airmotive Engineering Corp | Current | 2001-11-25 |
| AEC641066 | O-Ring, Packing Cyl Base, Cont. 5.25 Bore | Airmotive Engineering Corp | Current | 2001-11-25 |
| AEC641742 | Gear Assembly, Magneto & Accessory Drive | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC641792 | Valve, Intake | Airmotive Engineering Corp | Current | 1998-08-18 |
| AEC641793 (and oversizes up to .030) | Seat, Valve | Airmotive Engineering Corp | Historical | 2006-10-16 |
| AEC641909 | Plate, Locking | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC641931-10.75 | Thrubolt, 1/2-20 x 10.75 Long | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC641931-10.94 | Thrubolt, 1/2-20 x 10.94 Long | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC641931-10.95 | Thrubolt, 1/2-20 x 10.95 Long | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC641931-5.50 | Thrubolt, 1/2-20 x 5.50 Long | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC641931-6.75 | Thrubolt, 1/2-20 x 6.75 Long | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC641931-9.81 | Thrubolt, 1/2-20 x 9.81 Long | Airmotive Engineering Corp | Current | 2002-08-14 |
| AEC642318 | `Insert, Seat, Intake Valve | Airmotive Engineering Corp | Current | 2004-05-16 |
| AEC642398 | Bearing, Connecting Rod | Airmotive Engineering Corp | Current | 2000-08-16 |
| AEC642720 | Bearing, Crankshaft, Main | Airmotive Engineering Corp | Current | 2000-08-16 |
| AEC643233 | Bearing, Crankshaft Rear | Airmotive Engineering Corp | Current | 2003-06-30 |
| AEC643626-101 | Pin, Counterweight | Airmotive Engineering Corp | Current | 2000-04-18 |
| AEC643626-103 | Pin, Counterweight | Airmotive Engineering Corp | Current | 2000-04-18 |
| AEC643626-104 | Pin, Counterweight | Airmotive Engineering Corp | Current | 2000-04-18 |
| AEC643626-105 | Pin, Counterweight | Airmotive Engineering Corp | Current | 2000-04-18 |
| AEC643626-106 | Pin, Counterweight | Airmotive Engineering Corp | Current | 2000-04-18 |
| AEC643626-107 | Pin, Counterweight | Airmotive Engineering Corp | Current | 2000-04-18 |
| AEC643629 | Plate, Counterweight Pin Retaining | Airmotive Engineering Corp | Current | 2004-03-25 |
| AEC643766 | Guide, Valve Intake | Airmotive Engineering Corp | Current | 1998-08-18 |
| AEC643767 | Guide, Valve Exhaust | Airmotive Engineering Corp | Current | 1998-08-18 |
| AEC646140 | 7/16-14 x 7/16-20 Necked Stud | Airmotive Engineering Corp | Current | 2004-05-16 |
| AEC646263 | Piston 5.0 Dia., 7 1 comp. ratio | Airmotive Engineering Corp | Current | 2004-05-16 |
| AEC646288 | Bearing-Thrust | Airmotive Engineering Corp | Current | 2000-08-16 |
| AEC646612 | Valve, Exhaust | Airmotive Engineering Corp | Current | 1998-08-18 |
| AEC646655 | Gear Assy. Alternator Clutch, Driven | Airmotive Engineering Corp | Current | 2004-05-15 |
| AEC6477 | Cylinder Head | Airmotive Engineering Corp | Current | 1997-03-17 |
| AEC648005PL | Ring, Piston, Compression 5.25X.109 | Airmotive Engineering Corp | Current | 1998-08-18 |