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Five carburetor diaphragm gasket kits in a clear bag

LAHDEK

LAHDEK 5pcs Carburetor Diaphragm Gasket Kit Zama RB-158 Stihl HS81T HS81R HS86T C1Q-S140 C1Q-S140A

SKU CH-0TCH-0G69Q

Five-piece carburetor diaphragm gasket kit fits Zama RB-158 and C1Q-S140 models on Stihl HS81T, HS81R and HS86T petrol chainsaws

  • Five-piece kit covers multiple hedge-trimmer models
  • Fits Zama RB-158 carburettors used on Stihl HS81T, HS81R and HS86T
  • Compatible with Zama C1Q-S140 and C1Q-S140A carburettors
  • Supports both 2-stroke and 4-stroke petrol engines
  • New replacement diaphragm gasket set restores fuel metering

Five-piece carburetor repair kit

This kit supplies five complete carburetor diaphragm gasket sets for Zama RB-158 carburettors found on Stihl HS81T, HS81R and HS86T hedge trimmers. Each set contains the diaphragms and gaskets needed to reseal the fuel circuit during a standard rebuild. The parts are packaged as a ready-to-use lot for professional technicians or owners maintaining multiple machines.

Sustained sealing under vibration and heat

The diaphragms and gaskets are designed to maintain fuel metering during continuous two-stroke or four-stroke operation where engine vibration and fuel exposure stress the sealing surfaces. Consistent elasticity prevents lean-running conditions that appear after prolonged use rather than during initial start-up. Replacing all five sets at scheduled intervals keeps the carburettor performing to its original calibration.

Compatibility limited to Zama RB-158

This kit fits only the Zama RB-158 carburettor and the C1Q-S140 and C1Q-S140A variants used on the listed Stihl models. It will not suit carburettors with different model codes or machines outside the HS81T, HS81R and HS86T range. Verify the carburettor marking before ordering to avoid a mismatch.

Highlights

  • Five-piece kit covers multiple hedge-trimmer models
  • Fits Zama RB-158 carburettors used on Stihl HS81T, HS81R and HS86T
  • Compatible with Zama C1Q-S140 and C1Q-S140A carburettors
  • Supports both 2-stroke and 4-stroke petrol engines
  • New replacement diaphragm gasket set restores fuel metering

Specifications

No published specifications for this item yet.

Questions about this item

Does the kit reduce fuel consumption or engine heat during extended hedge-trimming sessions?

The diaphragms and gaskets restore proper fuel metering, which helps the two-stroke engine run at its intended mixture and temperature.

Must I already own a Zama RB-158 or C1Q-S140 carburettor for these parts to fit?

Yes, the kit is designed specifically for Zama RB-158 and C1Q-S140/C1Q-S140A carburettors used on the listed Stihl models.

Will the gaskets seal correctly on an older HS81T carburettor body that has seen years of vibration?

The kit includes fresh diaphragms and gaskets made to the original specifications for the HS81T, HS81R and HS86T carburettors.

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