Description

1141 129 0900 STIHL Metering Gasket (Genuine OEM Part)

The STIHL 1141 129 0900 is a genuine OEM metering gasket designed to seal the metering diaphragm to the carburetor body on a wide range of compatible STIHL chainsaws and power equipment. This gasket ensures an airtight seal, allowing the metering diaphragm to function correctly and maintain accurate fuel delivery.

Manufactured to STIHLs original equipment specifications, this metering gasket is made from high-quality, fuel-resistant gasket material to withstand fuel exposure, pressure changes, and continuous operation. Using a genuine STIHL metering gasket helps restore proper carburetor performance and prevent fuel or air leaks.

Product Details

Manufacturer Part Number: 1141 129 0900
Brand: STIHL
Part Type: Metering Gasket
System: Fuel system / Carburetor assembly
Function: Seals the metering diaphragm to the carburetor
Material: Fuel-resistant gasket material
OEM Status: Genuine STIHL OEM replacement

Function

Provides an airtight seal for the metering diaphragm
Ensures accurate fuel metering inside the carburetor
Prevents air and fuel leaks
Supports smooth engine operation and reliable starting

Compatible With STIHL Equipment

Chainsaws

MS 271 FarmBoss
MS 271
MS 291
MS 291 C-BEQ
MS 261 C-MQ
MS 261 C-M
MS 261 C-Q
MS 261
MS 241 C-M

Trimmers / Brushcutters / Kombi

FS 91 / FS 91.0 / FS 91 R
FS 111 / FS 111 R / FS 111 RX
FS 131 / FS 131.0 / FS 131 R / FS 131.0 R (Carburetor 4180/20)
FS 235.0 / FS 235.0 R (Carburetor 4151/02)
FS 311 (Carburetor 4180/20)
KM 91 R
KM 111 R
KM 131 R

Other Equipment

BT 131 (Carburetor 4180/20)
FB 131
FC 91 / FC 96 / FC 111
FR 235.0 (Carburetor 4151/02)
HT 102 / HT 105 / HT 131 / HT 132 / HT 133 / HT 134 / HT 135

How Its Used

This metering gasket installs between the carburetor body and the metering diaphragm. It creates a proper seal that allows the diaphragm to respond accurately to pressure changes and regulate fuel flow.

The gasket should be replaced whenever the carburetor is serviced or rebuilt.

Suggested Maintenance

Replace the gasket during carburetor rebuilds
Inspect for tears, compression, or fuel saturation
Ensure correct gasket orientation during installation
Use only clean fuel to extend carburetor component life

The STIHL 1141 129 0900 Metering Gasket is used in OEM-specified carburetor applications where proper sealing, accurate fuel control, and long-term reliability are essential.