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Two new metallic piston rings, 46mm diameter, 1.5mm thick

LAHDEK

LAHDEK Piston Rings 46mm x 1.5mm for Stihl MS280 MS290 028 029 034 Chainsaw 2pcs

SKU CH-ZTTC-5983W

Two 46 mm × 1.5 mm piston rings replace OEM 1118 034 3001 on Stihl MS280, MS290, 028, 029 and 034 chainsaws

  • Restores compression in Stihl 2-stroke engines with 46mm x 1.5mm rings
  • Direct replacement for OEM part 1118 034 3001 on listed models
  • Fits MS280, MS290, 028, 029 and 034 petrol chainsaws
  • Two-ring pack covers both grooves for a complete rebuild
  • Precision dimensions ensure proper seal and oil control

Direct Replacement Piston Rings

These piston rings suit Stihl MS280, MS290, 028, 029 and 034 chainsaws with a 46mm x 1.5mm bore. The two-piece set replaces OEM part 1118 034 3001 and fits single-cylinder two-stroke petrol engines. Home users and professionals restoring compression will find the parts match the original specification.

Sustained Compression Retention

Under continuous cutting load the rings maintain a consistent seal around the 46mm cylinder bore. The 1.5mm radial width controls blow-by during long felling sessions so power delivery stays steady. Heat expansion is accommodated without loss of ring tension, preventing the gradual power drop seen with worn rings.

Thermal Stability and Low Friction

The rings operate at normal petrol-engine temperatures without excessive friction or noise. Oil consumption remains low because the narrow profile scrapes the cylinder wall cleanly. No additional cooling or lubrication changes are required beyond the standard chainsaw fuel mix.

Highlights

  • Restores compression in Stihl 2-stroke engines with 46mm x 1.5mm rings
  • Direct replacement for OEM part 1118 034 3001 on listed models
  • Fits MS280, MS290, 028, 029 and 034 petrol chainsaws
  • Two-ring pack covers both grooves for a complete rebuild
  • Precision dimensions ensure proper seal and oil control

Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the 46mm x 1.5mm piston ring generate during extended cutting sessions?

The ring itself produces no heat; it seals the combustion chamber so the engine manages temperature through its normal cooling fins and fuel mixture.

Which existing Stihl chainsaw models must I already own for these 46mm x 1.5mm rings to fit?

They are direct replacements for Stihl MS280, MS290, 028, 029 and 034 saws, matching OEM part 1118 034 3001.

Will the 46mm x 1.5mm ring seat correctly in an older 028 cylinder that has seen years of use?

Yes, the dimensions match the original specification for the 028, so the ring seats the same way provided the cylinder bore is within service limits.

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