The NEWTOP NT381 spare parts set is built for professionals who require power, endurance, and consistent performance in demanding cutting conditions. NT381 refers to a chainsaw parts model equivalent to the MS380 parts specification and is designed for compatibility with MS380 type chainsaws. Engine components such as the crankshaft and crankcase are made of 20CrMoTi alloy steel and undergo precision CNC processing and advanced heat treatment to enhance mechanical strength and vibration resistance.
The high strength cylinder ensures efficient cooling and stable operation, while the premium piston assembly delivers optimal compression and responsive engine performance. The carburetor is built to Walbro type specifications, ensuring smooth fuel intake and reliable ignition to maintain high efficiency during extended operation.
Complemented by a German alloy saw chain and a reinforced guide bar, this set supports clean and sharp cutting results with reduced maintenance requirements. The NEWTOP NT381 Chainsaw Parts Set is a cost effective and high quality replacement solution, trusted by chainsaw manufacturers, garden machinery distributors, and outdoor power equipment dealers seeking dependable aftermarket components.
| A1 | Crankcase for 2 - 11 | H17 | 指輪 |
|---|---|---|---|
| A2 | Cylindrical pin 5x18 | H18 | スロットルトリガー |
| A3 | Connector | H19 | Trigger interlock |
| A4 | Pin | H20 | Throttle rod |
| A5 | Pin | H21 | Torsion spring |
| A6 | Valve | H22 | Cylindrical pin 5x24 |
| A7 | Connector | H23 | Pan head self-tapping screw IS-P4x19 |
| A8 | Spline screw IS-M5x18 | H24 | Handle molding |
| A9 | Circlip 40x1.75 | H25 | ワッシャー |
| A10 | Grooved ball bearing 6203 | J1 | Carburetor Bing 48A101C |
| A11 | Grooved ball bearing 6202 | J1 | Carburetor Bing 48A125A available in Brazil only |
| A12 | Oil seal 17x39.9x5 | J2 | Hexagon nut M5 |
| A13 | Oil seal 13x22x5 | J3 | グロメット |
| A14 | ホース | Air filter, wire mesh for 4 - 9 | |
| A15 | Pickup body | J4 | Air filter, wire mesh |
| A16 | ガスケット | J5 | Air filter, wire mesh |
| A17 | Crankshaft for 18 | J6 | Torsion spring |
| A18 | Woodruff key 2x3.7 | J7 | Choke shutter |
| A19 | Needle cage 12x16x13 | J8 | Slotted nut |
| A20 | Filler cap for 21 | J9 | Slotted nut |
| A21 | Oring 23x3 | Air filter, fleece AUS, CDN for 6 - 11 | |
| Set of gaskets for 12, 13, 16 | J10 | Air filter, fleece AUS, CDN | |
| B1 | Cylinder with piston Dia. 52mm for 2 - 5 | J11 | Air filter, fleece AUS, CDN |
| B2 | Piston Dia. 52mm for 3 - 5 | J12 | Handlebar for 13 |
| B3 | Piston ring Dia. 52x1.5mm | J13 | Handle hose 450mm / 17 13/16" (D) |
| B4 | Piston pin | Handle hose Dia. 19 mm x 5m / 3/4x197" (B) | |
| B5 | Snap ring 12x1 | J14 | Pan head self-tapping screw IS-P6x19 |
| B6 | Cylinder gasket | J15 | Chain sprocket cover for 16, 17 |
| B7 | Cylinder gasket 1mm low compression | J16 | Bumper strip |
| B8 | Spline screw IS-M5x18 | J17 | ガード |
| B9 | Spark plug NGK BPMR7A | J18 | Collar nut M8 |
| B9 | Spark plug Bosch WSR 6 F | K1 | Valve jet |
| B10 | Exhaust gasket | K2 | ガスケット |
| B11 | Hose clip Dia. 34x7 | K3 | Plate |
| B12 | マニホールド | K4 | Countersunk screw |
| B13 | スリーブ | K5 | Inlet needle |
| Set of gaskets | K6 | Inlet control lever | |
| C1 | Inlet casing Standard | K7 | Spindle |
| C2 | Exhaust casing Standard | K8 | Spring |
| C3 | Shake-proof washer 4.3 | K9 | Screw |
| C4 | Self-tapping screw 4.2x9.5 | K10 | ガスケット |
| Muffler kit AUS, CDN for 3 - 7 | K11 | Metering diaphragm | |
| C5 | Inlet casing AUS, CDN | K12 | End cover |
| C6 | Exhaust casing AUS, CDN for 4, 7 | K13 | Pan head screw |
| C7 | Screen AUS, CDN | K14 | Sealing ring |
| C8 | Muffler (B) available in Brazil only for 9 | K15 | Spring |
| C9 | Exhaust casing (B) available in Brazil only | K16 | High speed adjustment screw |
| Muffler kit available in Brazil only for 3, 4, 10, 11 | K17 | Spring | |
| C10 | Inlet casing available in Brazil only | K18 | Idle speed adjustment screw |
| C11 | Exhaust casing available in Brazil only | K19 | Throttle shaft with lever |
| C12 | Spline screw IS-M5x18 | K20 | Throttle shutter |
| D1 | ガスケット | K21 | Screw |
| Oil pump for 2 - 15 | K22 | Torsion spring | |
| D2 | Pump housing for 3 | K23 | Strap |
| D3 | Sealing ring 12x16x3 | K24 | Pan head screw |
| D4 | ワッシャー | K25 | Strainer |
| D5 | ワーム | K26 | Pump diaphragm |
| D6 | ワッシャー | K27 | ガスケット |
| D7 | Compression spring | K28 | End cover |
| D8 | Pump piston | K29 | Pan head screw |
| D9 | プラグ | Set of carburetor parts for 2, 10, 11, 26, 27 | |
| D10 | O-ring 7x1.5 | Set of carburetor parts for 2, 5, 6, 8, 10, 11, 25 - 27 | |
| D11 | Helical spring | L1 | Valve jet |
| D12 | Control bolt | L2 | ガスケット |
| D13 | O-ring 5x1.25 | L3 | Plate available in Brazil only |
| D14 | Cup spring 10 | L4 | Countersunk screw |
| D15 | Pin | L5 | Inlet needle |
| D16 | Rubber ring | L6 | Inlet control lever |
| D17 | Spline screw IS-M4x25 | L7 | Spindle |
| Set of gaskets for 1 | L8 | Spring | |
| E21 | ワッシャー | L9 | Screw |
| E22 | Circlip 36x1.2 | L10 | ガスケット |
| E23 | ワッシャー | L11 | Metering diaphragm |
| E24 | E-clip 10x1.5 | L12 | End cover |
| Rim sprocket kit 3/8" 7T for 24 - 28 | L13 | Pan head screw | |
| E26 | Clutch drum (D) | L14 | Sealing ring |
| E27 | Circlip 25x1.2 | L15 | Spring |
| E28 | Rim sprocket 3/8" 7T | L16 | High speed adjustment screw |
| E29 | ワッシャー | L17 | Spring |
| E30 | Hand guard | L18 | Idle speed adjustment screw |
| E31 | Spline screw IS-M5x16 | L19 | Throttle shaft with lever |
| E32 | Bushing | L20 | Throttle shutter |
| E33 | Bushing | L21 | Screw |
| F1 | フライホイール | L22 | Torsion spring |
| F2 | Hexagon nut M8x1 | L23 | Strap |
| F3 | Ignition module for 4 - 6 | L24 | Pan head screw |
| F4 | Ignition lead 140mm | L25 | Strainer |
| Ignition lead 1m (あ,B) | L26 | Pump diaphragm | |
| Ignition lead 10m (あ,B) | L27 | ガスケット | |
| F5 | グロメット | L28 | End cover |
| F6 | Lead retainer | L29 | Pan head screw |
| F7 | ワッシャー 5.3 | Set of carburetor parts for 2, 10, 11, 26, 27 | |
| F8 | Spline screw IS-M5x25 | Set of carburetor parts for 2, 5, 6, 8, 10, 11, 25 - 27 | |
| F9 | Short circuit wire 330mm / 13" for 10, 11 | M1 | Annular buffer |
| F10 | Contact sleeve | M2 | Pan head self-tapping screw IS-P6x19 |
| F11 | Terminal socket 4.8-1/0.8 | M3 | プラグ |
| Lead 10m / 33' (あ,B) | M4 | プラグ | |
| F12 | ホース | M5 | Chain catcher for 6 |
| F12 | Hose available in Brazil only | M6 | Self-tapping screw P6.3x18 |
| F13 | Torsion spring | M7 | Annular buffer |
| F14 | Spark plug boot | M8 | プラグ |
| G1 | Fan housing for 2 - 5 | M9 | Annular buffer |
| G2 | Bushing | M9 | Annular buffer PRC |
| G3 | ワッシャー | M10 | Spline screw IS-M5x12 |
| G4 | Hollow rivet 6.5x0.5x6.8 | M11 | リテーナー |
| G5 | Model plate MS 380 | M12 | Pan head screw |
| G6 | Rewind spring for 7 | N4 | テンショナースライド |
| G7 | Spring housing | N5 | Thrust pad |
| G8 | Rope rotor | N6 | Cover plate |
| G9 | Pawl | N7 | Pan head screw M4x8 |
| G10 | ワッシャー | N8 | サポート |
| G11 | Spring | N9 | Inner side plate |
| G12 | Starter grip ElastoStart for 13 | N10 | Bumper spike |
| G13 | Starter rope Dia. 4.5mm | N11 | Spline screw IS-M5x12 |
| Starter rope Dia. 4.5mm / 28 pieces (B) | N12 | Lock nut M5 | |
| G14 | セグメント | N13 | Carburetor box cover for 14 - 18 |
| G15 | Spline screw IS-M4x12 | N14 | Prefilter |
| G16 | Spline screw IS-M5x18 | N15 | Pan head self-tapping screw IS-P4x19 |
| H1 | Tank housing for 2 - 9 | N16 | Twist lock |
| H2 | Warning pictogram MS | N17 | Compression spring |
| H3 | カラーネジ | N18 | E-clip 5 |
| H4 | Elbow connector | N19 | Shroud for 20 |
| H5 | Tank vent for 6 | N20 | Reflector foil |
| H6 | O-ring 10x2.1 (D) | N21 | カラーネジ |
| H7 | Filler cap for 8 | N22 | 指輪 |
| H8 | Oring 25x3.5 | N23 | Spline screw IS-M5x18 |
| H9 | ホース | O1 | Tool roll |
| H10 | Pickup body | O2 | Combination wrench |
| H11 | Hose 3.1x5.7x102mm (D) | O3 | Screwdriver |
| Hose 3.1x5.7x1000mm (あ,B) | O4 | Screwdriver T27x120x70 | |
| Tubo flexible 3,1x5,7x10 m / 33' (あ,B) | O5 | Screwdriver available in Brazil only | |
| H12 | Switch shaft | O6 | Chain scabbard |
| H13 | サポート | O7 | Chain scabbard extension up to 63 cm (B) |
| H14 | Contact spring | O8 | Filing gauge (B) |
| H15 | Ground wire 205mm / 8 1/16" | O9 | Circlip pliers (B) |
| H16 | グロメット |
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