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- 4149 121 2700 STIHL Cap – Genuine OEM Part
Description
4149 121 2700 STIHL Cap – Genuine OEM Part
The STIHL Cap (4149 121 2700) is a genuine OEM carburetor cap designed for use with the STIHL carburetor 4149/02 on select STIHL trimmers, Kombi tools, and hedge trimmers (serial number ranges apply).
This cap is used as part of the carburetor assembly to seal and protect internal carburetor components. Replacing a missing, cracked, damaged, or leaking cap helps maintain proper fuel metering, prevents contamination, and supports reliable engine performance.
Manufactured to STIHL factory specifications, this OEM cap provides correct fitment, secure sealing, and long-lasting durability.
Product Details
OEM Part Number: 4149 121 2700
Brand: STIHL (Genuine OEM)
Part Type: Cap (Carburetor Cap)
Application: Carburetor 4149/02 (varies by model)
Condition: New Genuine OEM Part
Function
This OEM cap is designed to:
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Seal and protect internal carburetor components
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Prevent fuel leaks and contamination
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Support correct fuel metering and stable engine operation
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Replace cracked, damaged, or missing carburetor caps
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Maintain proper carburetor assembly integrity
⚠️ A damaged or missing carburetor cap may cause fuel leaks, poor running, or carburetor contamination.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4149 121 2700
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Carburetor type 4149/02
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Your STIHL model is listed below
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Your machine serial number matches the range shown
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Part location matches your carburetor diagram
⚠️ Always verify fitment by OEM part number and serial number for best accuracy.
Compatibility (Fits STIHL Models)
(Serial number range applies — Carburetor 4149/02)
Hedge Trimmers / Long-Reach Units
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HL 91 K (Carburetor 4149/02 from serial number 516095589)
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HL 94 (Carburetor 4149/02 from serial number 516140932)
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HL 94 K (Carburetor 4149/02 from serial number 516140932)
Trimmers / Brushcutters
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FS 94 R (Carburetor 4149/02 from serial number 516674202)
Kombi Tools
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KM 94 R (Carburetor 4149/02 from serial number 516674202)
Installation Notes
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Turn off engine and allow it to cool
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Remove air filter cover and access carburetor as needed
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Remove the old cap from the carburetor assembly
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Install STIHL OEM cap 4149 121 2700
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Ensure cap seats correctly and seals properly
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Reassemble and test for leaks and stable running
⚠️ Use care when working on carburetor components. Dirt contamination can cause performance problems.
Maintenance Tips
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Inspect carburetor components during service
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Replace cap if cracked, leaking, or loose
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Keep air filter clean to prevent carburetor contamination
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Use genuine STIHL OEM carburetor parts for correct fit and sealing
