The Stihl TS400 is a professional-grade cut-off saw designed for demanding construction, masonry, and rescue applications. This parts manual provides detailed diagrams, part numbers, and ordering information for all components of the TS400 cut-off saw, including the engine, cutting system, fuel system, air filtration, ignition, and housing. Below are key sections for parts identification, assembly groups, ordering instructions, and maintenance part replacements.
This manual is intended for professional technicians and authorized Stihl service dealers. Always refer to the official Stihl TS400 instruction manual for operational and safety procedures before performing any maintenance or parts replacement.
| Warning Symbol | Meaning |
|---|---|
| ⚠️ | Indicates a potentially hazardous situation which, if not avoided, could result in serious injury or death. |
| 🔧 | Indicates a procedure requiring specific tools or technical knowledge. |
| # | Denotes the part number used for ordering genuine Stihl replacement parts. |
WARNING! Always disconnect the spark plug boot before working on the saw. Use only genuine Stihl replacement parts to ensure safety, performance, and warranty compliance.
Master exploded-view diagram of the Stihl TS400 cut-off saw with callouts for major assembly groups.
Note: Refer to subsequent sections for detailed part numbers within each group.
Complete listing of parts for the TS400 two-stroke engine.
CAUTION! Engine assembly requires precise torque settings and alignment. Consult a Stihl service manual for assembly procedures.
Parts related to the cutting spindle, wheel, and safety guard.
| Part Description | Part Number | Qty |
|---|---|---|
| Spindle Shaft | 1140 195 2001 | 1 |
| Spindle Flange Nut | 1147 195 2000 | 1 |
| Cutting Wheel Guard (Metal) | 1140 905 2001 | 1 |
| Guard Mounting Bolt Set | 1147 905 2005 | 4 |
| Inner Flange (Clamping) | 1140 195 2002 | 1 |
| Outer Flange | 1140 195 2003 | 1 |
| Spindle Bearing | 1140 195 2004 | 1 |
WARNING! Always use the correct guard for the cutting wheel diameter. Never operate the saw without the guard properly installed and secured.
Components for the fuel delivery and carburetion system.
Tip: Use only fresh, clean, high-quality gasoline mixed with Stihl HP Ultra two-stroke oil at a 50:1 ratio.
Parts for the air intake and filtration system.
CAUTION! A clogged air filter causes poor performance and engine damage. Clean the filter regularly with warm, soapy water and allow to dry completely.
Components for engine ignition and stop switch.
| Component | Part Number | Function |
|---|---|---|
| Ignition Module (Coil) | 1140 400 2001 | Generates spark |
| Flywheel with Fan | 1140 400 2002 | Magnets and cooling |
| Spark Plug Boot | 1147 400 2003 | High-voltage connector |
| Stop Switch Assembly | 1140 992 2001 | On/Off switch |
| Wiring Harness | 1140 400 2004 | Connects switch to coil |
| Ground Wire | 1147 400 2005 | Coil to chassis ground |
Note: The TS400 uses a capacitor discharge ignition (CDI) system. Module is non-adjustable.
Parts for the saw's body, handles, and anti-vibration system.
Common screws, nuts, washers, and clips used throughout the saw.
Tip: Always replace damaged or worn fasteners. Do not reuse circlips or lock washers.
Alphabetical quick-reference list of common parts.
| Part Name | Part Number |
|---|---|
| Air Filter | 1140 140 2002 |
| Carburetor | 1140 120 0650 |
| Crankshaft | 1140 040 2803 |
| Cylinder | 1140 020 2005 |
| Fuel Cap | 1140 350 2002 |
| Fuel Filter | 0000 350 3501 |
| Ignition Coil | 1140 400 2001 |
| Piston Kit | 1140 030 2001 |
| Spark Plug | 0000 400 1305 |
| Spindle Shaft | 1140 195 2001 |
To order parts or obtain technical support:
WARNING! Use of non-genuine Stihl parts may void your warranty, reduce performance, and create safety hazards. Stihl recommends that all repairs be performed by authorized service personnel.
Service & Manuals: 1-800-467-8445; www.stihlusa.com