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Description
4180 129 0902 – Carburetor Gasket (Genuine STIHL OEM Part)
The STIHL 4180 129 0902 Carburetor Gasket is a genuine OEM replacement gasket designed to create an airtight, leak-free seal between the carburetor and engine on compatible STIHL trimmers, edgers, hedge trimmers, pole pruners, KombiSystem powerheads, and earth augers. Engineered to STIHL's exact specifications, this gasket helps maintain the proper air-fuel mixture, ensuring reliable starting, smooth idling, responsive throttle performance, and maximum engine efficiency.
Manufactured from premium heat-, fuel-, and oil-resistant gasket material, the 4180 129 0902 Carburetor Gasket withstands high engine temperatures, vibration, and prolonged exposure to gasoline and ethanol-blended fuels. Replacing a worn or damaged gasket helps eliminate vacuum leaks, restore fuel system performance, and extend engine life.
Product Details
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Manufacturer Part Number: 4180 129 0902
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Brand: STIHL
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Part Type: Carburetor Gasket
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OEM Status: Genuine STIHL OEM Part
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Material: Premium fuel- and heat-resistant gasket material
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System: Fuel System / Carburetor
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Function: Seals the carburetor to prevent air and fuel leaks
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Installation: Direct OEM replacement
Key Features
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Genuine STIHL OEM replacement part
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Creates a reliable airtight seal
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Prevents vacuum and fuel leaks
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Maintains proper air-fuel mixture
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Resistant to fuel, oil, heat, and vibration
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Precision-cut for an exact OEM fit
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Ideal for carburetor repairs and maintenance
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Long service life
Function
The STIHL 4180 129 0902 Carburetor Gasket seals the connection between the carburetor and engine, ensuring that all intake air passes through the carburetor as intended. A properly sealed carburetor improves engine performance, fuel efficiency, throttle response, and starting reliability while preventing unfiltered air from entering the engine.
Replacing the gasket during carburetor service helps prevent air leaks that can cause rough idle, poor acceleration, hard starting, and loss of engine power.
Compatible Models
The STIHL 4180 129 0902 Carburetor Gasket is compatible with the following STIHL equipment:
Brushcutters & Trimmers
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STIHL FS 90
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STIHL FS 90 R
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STIHL FS 100 RX
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STIHL FS 110
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STIHL FS 110 R
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STIHL FS 110 RX
Edgers
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STIHL FC 90
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STIHL FC 95
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STIHL FC 100
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STIHL FC 110
Pole Pruners
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STIHL HT 100
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STIHL HT 101
Long-Reach Hedge Trimmers
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STIHL HL 90 K
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STIHL HL 100
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STIHL HL 100 K
KombiSystem Powerheads
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STIHL KM 90 R
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STIHL KM 110 R
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STIHL KM 130 R
Earth Auger
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STIHL BT 45
Compatible with select carburetors including:
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C1Q-S72
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C1Q-S74
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C1Q-S81
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C1Q-S88
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C1Q-S110
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C1Q-S130
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C1Q-S131
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C1Q-S173
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C1Q-S174
Always verify your equipment model, serial number, and carburetor model before ordering.
Who Is This For?
Ideal for:
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Professional landscapers
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Arborists
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Equipment repair technicians
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Forestry professionals
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Municipal maintenance crews
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Homeowners performing carburetor maintenance
Pros
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Genuine STIHL OEM quality
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Prevents air and fuel leaks
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Restores proper carburetor sealing
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Heat- and fuel-resistant construction
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Precision OEM fit
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Easy installation
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Long-lasting durability
Cons
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Fits only compatible STIHL models and carburetors
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Should be replaced whenever the carburetor is removed
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Does not include the carburetor or mounting hardware
Comparison – Genuine STIHL OEM vs Aftermarket Carburetor Gaskets
Genuine STIHL 4180 129 0902
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Exact OEM dimensions
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Premium gasket material
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Superior sealing performance
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Factory-approved fit and durability
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Long service life
Generic Aftermarket Gasket
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Fitment may vary
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Material quality differs by manufacturer
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Reduced sealing efficiency
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Greater risk of vacuum leaks
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Shorter service life
Why Buy from Barry's Power Equipment?
Barry's Power Equipment is an authorized STIHL dealer offering genuine STIHL equipment, OEM replacement parts, and accessories.
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Authorized STIHL Dealer
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Genuine STIHL OEM parts
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Fast shipping throughout the USA
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Competitive pricing
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Expert customer support
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Trusted by professional landscapers and arborists
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Extensive inventory of STIHL carburetors, fuel system components, engine parts, and maintenance supplies
Maintain factory engine performance with the STIHL 4180 129 0902 Carburetor Gasket. Designed for a wide range of STIHL FS, FC, HL, HT, KM, and BT models, this genuine OEM gasket provides a dependable airtight seal, restores proper fuel system operation, and delivers the reliability professionals expect from STIHL equipment.

