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Description
4180 030 1800 STIHL Cam Wheel – Genuine OEM Part
The STIHL Cam Wheel (4180 030 1800) is a genuine OEM replacement cam wheel designed for use on select STIHL 4-MIX® engines and valve timing gear applications.
This cam wheel is a critical engine timing component responsible for synchronizing valve operation with crankshaft rotation. Proper cam wheel timing is essential for correct engine performance, smooth operation, and long service life.
Manufactured to STIHL factory specifications, this cam wheel provides the correct tooth profile, strength, and dimensional accuracy required for precise valve timing under demanding operating conditions.
Replacing a worn or damaged cam wheel helps restore correct valve timing and prevents serious engine damage.
Manufactured to STIHL OEM standards, this cam wheel ensures proper fitment and long service life.
Product Details
OEM Part Number: 4180 030 1800
Brand: STIHL (Genuine OEM)
Part Type: Cam Wheel
Application: Engine valve timing / camshaft drive (model-specific)
Condition: New Genuine OEM Part
Function
This OEM cam wheel is designed to:
Control and synchronize valve timing
Ensure proper camshaft rotation
Maintain correct engine timing and performance
Replace worn or damaged cam wheels
Prevent timing-related engine damage
⚠️ A damaged cam wheel may cause poor performance, hard starting, or severe engine damage.
Verify Fitment (Recommended)
Before ordering, confirm:
OEM part number 4180 030 1800
Engine diameter or valve timing gear application
Application matches your STIHL parts diagram
⚠️ Always verify fitment by OEM part number and parts diagram, as cam wheels vary by engine size and configuration.
Compatibility
Fits select STIHL models and configurations, including:
Engine Ø 38 mm
FC 91
FS 91
FS 91 R
FS 91.0
FC 96
FC 90
FC 95
FS 90 R 4180
FS 90 4180
KM 91 R
HL 90 K
Engine Ø 40 mm
FS 111
FS 111 R
FS 111 RX
HT 100
HT 102
HT 105
HL 100
HL 100 K
FC 110
FC 111
FC 100
KM 110 R
KM 111 R
Engine Ø 43 mm
BT 131
FB 131
FS 311
FS 131
FS 131 R
FS 131.0
FS 131.0 R
HT 131
HT 135
HT 134
HT 133
HT 132
KM 130 R
KM 131 R
Valve Timing Gear Applications
BT 130
HT 101 (⇥ 508613634)
HT 130 (⇥ 508507652)
FS 100 RX
FS 110
FS 110 R
FS 110 RX
FS 130
FS 130 R
FS 310
KM 90 R
(Exact application varies by model and configuration — verify using OEM parts diagram.)
Installation Notes
Allow engine to cool completely
Disassemble valve timing components as required
Remove the existing cam wheel carefully
Install STIHL OEM cam wheel 4180 030 1800 with correct timing alignment
Verify valve timing before reassembly
⚠️ Cam wheel installation requires precise timing — professional installation is recommended.
Maintenance Tips
Inspect cam wheel and timing components during service
Replace worn timing components promptly
Use only genuine STIHL OEM cam wheels for correct fit and durability

