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Description
4140 029 2300 STIHL Cylinder Gasket – Genuine OEM Part
The STIHL Cylinder Gasket (4140 029 2300) is a genuine OEM engine gasket designed to seal the cylinder-to-crankcase connection on a wide range of STIHL handheld equipment. This gasket helps maintain proper compression and crankcase sealing, supporting reliable starting, consistent performance, and long engine life.
Manufactured to STIHL’s exact factory specifications, this OEM cylinder gasket provides correct fitment and dependable sealing when replacing torn, leaking, or worn gaskets during cylinder service or engine rebuild.
Product Details
OEM Part Number: 4140 029 2300
Brand: STIHL (Genuine OEM)
Part Type: Cylinder Gasket
Application: Crankcase / Cylinder
Condition: New Genuine OEM Part
Function
This cylinder gasket is designed to:
Seal the cylinder-to-crankcase mating surface
Maintain proper compression and crankcase pressure
Help prevent air leaks that cause lean running
Support reliable starting and stable engine performance
Replace worn, torn, or leaking OEM cylinder gaskets
⚠️ A leaking cylinder gasket may cause poor starting, loss of power, overheating, or engine damage.
Verify Fitment in 30 Seconds
Before ordering, confirm the following:
OEM part number 4140 029 2300
Your STIHL model is listed below
Part location matches your crankcase / cylinder diagram
⚠️ Always verify fitment by OEM part number for best accuracy.
Compatibility
Fits a wide range of STIHL equipment, including:
Trimmers / Brushcutters
FS 38
FS 45
FS 45 D
FS 45 C-E
FS 46
FS 46-D
FS 46 C-E
FS 46 C-E D
FS 55
FS 55 R
FS 55 R-D
FS 55 R-D
FS 55-D
FS 55 C-E D
FS 55 RC-E
FS 55 RC-E D
FS 75
FS 80 (4137)
FS 80 R (4137)
FS 85
FS 85 R
FS 85 RX
Kombi Tools
KM 55 R
KM 55 R-D
KM 55 RC-E
KM 55 RC-E D
KM 55 RC-E D
KM 55 RC-E D
KM 85 R
Pole Pruners
HT 70
HT 75
Hedge Trimmers / Long-Reach Units
HL 45
HL 45-D
HL 75
HL 75 K
HS 45
Blowers / Backpack Units
BG 45
BG 45 C KAT
BG 46
BG 46-D
BG 46 C KAT
BG 50
BG 55
BG 55 C KAT
BG 65
BG 65-D
BG 85
BG 85-D
BG 85 C KAT
BR 45 C
Shredders / Vacuum Units
SH 55
SH 85
SH 85-D
Edgers / Specialty Units
FC 55
FC 55-D
FC 75
FC 85
KW 85
Multi-Tools
MM 55
MM 55 C-E
Other
BT 45
⚠️ This list includes common applications — always confirm using your parts diagram or owner’s manual.
Installation / Usage
Turn off engine and allow it to cool completely
Remove the cylinder according to your service procedure
Clean mating surfaces thoroughly (do not gouge aluminum)
Install STIHL OEM cylinder gasket 4140 029 2300
Reassemble cylinder evenly and torque fasteners properly
Test engine operation and check for leaks
⚠️ Professional installation is recommended if unsure.
Maintenance Tips
Replace gaskets any time the cylinder is removed
Inspect for air leaks if engine runs lean or overheats
Use only genuine STIHL OEM gaskets for best reliability
Keep fasteners torqued to factory spec
