The NEWTOP MS660 spare parts set combines industrial-grade metallurgy with precision manufacturing to meet the needs of heavy-duty chainsaw users. Its 20CrMoTi alloy steel crankshaft undergoes advanced heat treatment to achieve superior strength and resilience, while the CNC-machined crankcase provides structural accuracy and reduces engine vibration. The ceramic- or chrome-plated cylinder enhances cooling performance and wear resistance, ensuring consistent output even under continuous operation.
Paired with a Walbro-process carburetor, the system maintains excellent fuel efficiency and throttle response. The German-alloy saw chain and hardened steel guide bar ensure superior cutting speed and durability—making this parts set a long-lasting and cost-effective replacement solution for professional forestry, construction, and agricultural applications.
| A1 | Crankcase L | G4 | Bumper Spike |
|---|---|---|---|
| A2 | Crankcase R | G5 | Bumper Spike |
| A3 | Connector | G6 | Spline Screw |
| A4 | Cylindrical Pin | G7 | Lock Nut |
| A5 | Pin | G8 | Hexagon Head Screw |
| A6 | Pin | G9 | Sleeve |
| A7 | Pin | G10 | Sleeve (3) Aus, Nz |
| A8 | Pin | G11 | Chain Catcher |
| A9 | Valve | G12 | Hexagon Nut |
| A9-1 | Valve | H1 | Flywheel |
| A10 | Grooved Ball Bearing | H2 | Flywheel |
| A11 | Grooved Ball Bearing | H3 | Hexagon Nut |
| A12 | Spline Screw | H4 | Spline Screw |
| A13 | Collar Screw | H5 | Ignition Module |
| A14 | Oil Seal | H6 | Ignition Module |
| A15 | Oil Seal | H7 | Cover |
| A16 | Gasket | J1 | Wiring Harness |
| A17 | Crankshaft | J2 | Wiring Harness |
| A18 | Woodruff Key | K1 | Fan Housing |
| A19 | Hose | K2 | Axle |
| A20 | Pickup Body | K3 | Bushing |
| A21 | Filler Cap | K4 | Washer |
| A22 | Sealing Ring | K5 | Hollow Rivet |
| A23 | Rope | K6 | Segment |
| A24 | Grommet | K7 | Spline Screw |
| A25 | Insulation Foil | K8 | Recoil Spring |
| B1 | Cylinder With Piston | K9 | Recoil Spring Cover |
| B2 | Piston | K10 | Rope Rotor |
| B3 | Piston Ring | K11 | Washer |
| B4 | Piston Pin | K12 | Pawl |
| B5 | Snap Ring | K13 | Spring |
| B6 | Spline Screw | K14 | Starter Grip |
| B7 | Decompression Valve | K15 | Starter Rope |
| B8 | Cover | K16 | Spline Screw |
| B9 | Cylinder Gasket | L1 | Tank Housing |
| B10 | Tensioner Slide | L2 | Grommet |
| B11 | O-Ring | L3 | Tank Vent |
| B12 | Pan Head Screw | L4 | Carburetor Housing |
| B13 | Inner Side Plate | L5 | Collar Screw |
| B14 | Needle Cage | L6 | Self-Tapping Screw |
| B15 | Cover | L7 | Hose |
| B16 | Spline Screw | L8 | Bushing |
| C1 | Muffler | L9 | Inlet Pipe |
| C2 | Exhaust Casing | L10 | Sleeve |
| C3 | Muffler Gasket | L11 | Hose Clip |
| C4 | Spline Screw | L12 | Washer |
| C5 | Spline Screw | L13 | Ring |
| C6 | Spline Screw | L14 | Elbow Connector |
| C7 | Spark Plug | L15 | Hose |
| D1 | Sealing Ring | L16 | Pickup Body |
| D2 | Oil Pump | L17 | Filler Cap |
| D3 | Spline Screw | L18 | Rope |
| D4 | Worm | L19 | Sealing Ring |
| D5 | Spring | M1 | Switch Shaft |
| E1 | Cover Washer | M2 | Contact Spring |
| E2 | Clutch | M3 | Axle |
| E3 | Needle Cage | M4 | Support |
| E4 | Clutch Drum | M5 | Throttle Trigger |
| E5 | Rim Sprocket | M6 | Cylindrical Pin |
| E5-1 | Sprocket | M7 | Throttle Rod |
| E6 | Washer | M8 | Torsion Spring |
| E7 | E-Clip | M9 | Trigger Interlock |
| F1 | Hand Guard | M10 | Handle Molding |
| F2 | Bushing | M11 | Pan Head Self-Tapping Screw |
| F3 | Bushing | M12 | Impulse Hose |
| F4 | Spline Screw | M13 | Grommet |
| F5 | Lever | M14 | Grommet |
| F6 | Sleeve | M15 | Grommet |
| F7 | Lever | N1 | Handle Hose |
| F8 | Spring | N2 | Pan Head Self-Tapping Screw |
| F9 | Brake Band | N3 | Bushing |
| F10 | Tension Spring | N4 | Bushing |
| F11 | Hose | N5 | Carburetor |
| F12 | Annular Buffer | N6 | Carburetor |
| F13 | Annular Buffer | P1 | Shroud |
| F14 | Annular Buffer | P2 | Cap |
| F15 | Twin Connector Tag | P3 | Bushing |
| F16 | Spline Screw | P4 | Filter Base |
| F17 | Spline Screw | P5 | Flange |
| F18 | Pan Head Self-Tapping Screw | P6 | Stud |
| F19 | Plug | P7 | Hexagon Nut M5 |
| F20 | Plug | P8 | Baffle |
| F21 | Plug | P9 | Air Baffle |
| F22 | Rubber Buffer | P10 | Air Filter |
| F23 | Spline Screw | P11 | Filter Cover |
| F24 | Pin | P12 | Slide |
| G1 | Chain Sprocket Cover | P13 | Twist Lock |
| G2 | Guard | P14 | Spline Screw |
| G3 | Bumper Strip |
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