STIHL Valve

The STIHL Valve (OEM Part No. 1128 640 9100) is a genuine STIHL replacement component designed to help maintain correct pressure equalisation and dependable running across a wide range of STIHL chainsaws and pole pruners. Manufactured from durable metal and built to genuine STIHL standards, this precision replacement valve is designed to cope with the vibration, temperature and fuel or oil exposure commonly found in professional forestry, arborist and grounds maintenance environments.

Used as a direct-fit replacement when the original valve has become worn, contaminated or is no longer sealing correctly, this genuine STIHL valve helps restore reliable operation, smoother running and reduced downtime. It is a practical service part for workshop repairs, preventative maintenance and keeping heavily used STIHL equipment performing as intended.

Key Features

• Genuine STIHL replacement valve
• Original STIHL OEM part number: 1128 640 9100
• Durable metal construction for long-term reliability
• Designed to support correct pressure equalisation and sealing
• Helps maintain smooth running and dependable machine performance
• Suitable for servicing worn, leaking or sticking original valves
• Designed to withstand vibration, heat and exposure to fuel or oil
• Direct-fit replacement for compatible STIHL machines
• Useful for preventative maintenance and repair work

Designed for Reliable Pressure and System Performance

The STIHL Valve is designed to help maintain stable internal system performance by supporting correct pressure control and sealing within the machine. Replacing a faulty or worn valve can help reduce performance issues, support smoother operation and restore the intended running characteristics of your STIHL equipment.

Durable OEM Construction for Demanding Use

Built from robust, corrosion-resistant metal, this genuine STIHL replacement valve is made to perform reliably in demanding operating environments. It is designed to withstand the mechanical stress and exposure associated with chainsaw and pole pruner use, making it a dependable service part for both professional and domestic machines.

Compatibility and Application

This STIHL valve is used across a very broad range of STIHL chainsaws, pole pruners and related cutting equipment. It is commonly fitted during servicing or repair when pressure-related running issues, leakage or valve wear are present. Also commonly referred to as a decompression valve, vent valve, breather valve, check valve or pressure relief valve, it is a useful replacement part for maintaining reliable machine operation.

Technical Specifications

Compatible Models

Fits selected STIHL models including:

020, 020 T, 020T, 021, 023, 024, 025, 026, 028, 028 AV, 028AV, 029, 030, 031, 034, 036, 036 QS, 036QS, 038, 039, 044, 046, 048, 050, 051, 056, 064, 066, 076, HT 100, HT 101, HT 102, HT 103, HT 130, HT 131, HT 132, HT 133, HT 135, HT 56 C, HT 70, HT 70 K, HT 73, HT 75, HT-KM, HT-KM Pole Pruner, HT100, HT101, HT102, HT103, HT130, HT131, HT132, HT133, HT135, HT56 C, HT56C, HT70, HT70K, HT73, HT75, HTA 135, HTA 150.0, HTA 160.0, HTA 65, HTA135, HTA150.0, HTA1500, HTA160.0, HTA1600, HTA65, HTE 60, HTE60, HTKM, MS 150 C, MS 150 T C, MS 151 C, MS 151 TC, MS 171, MS 171 C, MS 181, MS 181 C, MS 192 C, MS 192 T, MS 192 TC, MS 193 C, MS 193 T, MS 193 TC, MS 194 T, MS 194 TC, MS 200, MS 200 T, MS 201, MS 201 C, MS 201 T, MS 201 TC, MS 210, MS 210 C, MS 211, MS 211 C, MS 230, MS 230 C, MS 231, MS 240, MS 241 C, MS 250, MS 250 C, MS 251, MS 260, MS 260 C, MS 261, MS 261 C, MS 270, MS 270 C, MS 271, MS 271 C, MS 280, MS 280 C, MS 290, MS 291, MS 291 C, MS 310, MS 311, MS 340, MS 341, MS 360, MS 360 C, MS 361, MS 361 C, MS 362, MS 362 C, MS 380, MS 381, MS 382, MS 390, MS 391, MS 400 C, MS 440, MS 441, MS 441 C, MS 460, MS 461, MS 462, MS 462 C, MS 500 i, MS 640, MS 650, MS 651, MS 660, MS 661, MS 661 C, MS150C, MS150T C, MS150TC, MS151C, MS151TC, MS171, MS171C, MS181, MS181C, MS192C, MS192T, MS192TC, MS193C, MS193T, MS193TC, MS194T, MS194TC, MS200, MS200T, MS201, MS201C, MS201T, MS201TC, MS210, MS210C, MS211, MS211C, MS230, MS230C, MS231, MS240, MS241C, MS250, MS250C, MS251, MS260, MS260C, MS261, MS261C, MS270, MS270C, MS271, MS271C, MS280, MS280C, MS290, MS291, MS291C, MS310, MS311, MS340, MS341, MS360, MS360C, MS361, MS361C, MS362, MS362C, MS380, MS381, MS382, MS390, MS391, MS400C, MS440, MS441, MS441C, MS460, MS461, MS462, MS462C, MS500i, MS640, MS650, MS651, MS660, MS661, MS661C, MSA 160 C, MSA 160 T, MSA 161 T, MSA 200 C, MSA 220 T, MSA 220 TC, MSA 300, MSA 300 C, MSA160 C, MSA160C, MSA160T, MSA161T, MSA200C, MSA220T, MSA220TC, MSA300, MSA300C, MSE 170, MSE 190, MSE 210, MSE 230, MSE 250 C, MSE170, MSE190, MSE210, MSE230, MSE250 C, MSE250C.

Ideal For

• Replacing worn, leaking or sticking machine valves
• Routine chainsaw and pole pruner servicing
• Preventative maintenance on professional cutting equipment
• Forestry, arborist and grounds maintenance applications
• Restoring reliable machine running and system sealing

Best For

The STIHL Valve 1128 640 9100 is best for users and technicians maintaining compatible STIHL chainsaws and pole pruners who need a genuine replacement part for dependable operation and long-term reliability.

Why Choose STIHL Valve 1128 640 9100?

Using a genuine STIHL replacement valve helps ensure correct fit, dependable sealing and the consistent performance expected from original equipment. It is a practical OEM service part for keeping compatible STIHL machines running smoothly and reliably.

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