| IR 1720B 1" Drive Parts List | |||
| Item | PartNumber | PartDescription | IREquivalent |
| 1 | Motor HousingAssembly | 1720B-A40 | |
| 2 | 8752 | Trigger | 834-93A |
| 3 | Trigger Pin | 534-265 | |
| 4 | 8410 | Throttle ValvePlunger | 2920B-302 |
| 5 | Throttle ValveAssembly | 834-50 | |
| 6 | Throttle Valve Face | 435-159 | |
| 7 | 8555 | Throttle ValveSpring | 834-51 |
| 8 | 8556 | Air StrainerScreen | 434-61 |
| 9 | Air InletBushing | 834-565 | |
| 10 | Grease Fitting | 130SR-188 | |
| 11 | ExhaustSilencer | 1720B-311 | |
| 12 | ExhaustDeflector | 2910B-23 | |
| 13 | ExhaustDeflector Gasket | 2910B-223 | |
| 14 | Exhaust Deflector Screw (4) | H54U-667 | |
| 15 | 8419 | Reverse Valve | 1710B-329 |
| 16 | 8207 | Reverse ValveSeal (2) | 261-283 |
| 17 | 8309 | Reverse ValveKnob | 231-666 |
| 18 | 8310 | Reverse ValveKnob Screw | 231-665 |
| 19 | 8039 | Rear RotorBearing Retainer | MVA008-218 |
| 20 | 8038 | Rear RotorBearing | 4E-510 |
| 21 | Rear End Plate | 2921HP-12 | |
| 22 | 8034B | Rear End PlateGasket | 2920B-283 |
| 23 | 8096 | Cylinder | 2920-3 |
| 24 | 2157P (ea) | Rotor Vane (6 required) | 2910-42-6 |
| 25 | 8091 | Front End Plate | 2921HP-11 |
| 26 | 8171 | End Plate Dowel | 2920-74 |
| 27 | 8429 | Rotor | 2910B-53 |
| 28 | 8037 | Front RotorBearing | 834-24 |
| 29 | 8326 | Cylinder Dowel | 910-98 |
| 30 | 8325 (ea) | Motor ClampWasher (2) | 2920-207 |
| 31 | 8410 | Motor Retainer | 2920B-800 |
| 32 | 8034A | Hammer CaseGasket | 910-36 |
| 33 | Hammer CaseAssembly | 1720B-A727 | |
| 34 | 8119 | Hammer CaseBushing | 2920-641 |
| 34A | Warning Label | WARINING-2-99 | |
| 35 | 8412 (ea) | Hammer CaseCap Screw (4) | 34U-103 |
| 36 | 8413 (ea) | Cap Screw LockWasher (4) | 34U-58 |
| 37 | 8414 | Rear HammerFrame Washer | 910-706 |
| 38 | 8415 | Hammer FrameAssembly | 2910-A703 |
| 39 | 8416 | Hammer Pin (2) | 2910-704 |
| 40 | 8417 | Hammer | 260-724 |
| 41 | Anvil | 260-762 | |
| 42 | Socket Retainer | RR10034S | |
| 43 | Nameplate | 1720B-301 | |
| 44 | Nameplate Screw (4) | C32-302 | |
| * | Dead Handle Bracket | 2910B-364 | |
| * | 8751 | Dead Handle | 834-48 |
| * | Horizontal Hanger | 910-366 | |
| * | Tune-up Kit (Includes 6, 7, 8, 11, 13, 16 [2], 19, 20, 22, 24, 28 & 32) | 1720B-TK2 | |
