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Six new metallic piston rings 50mm x 1.5mm on light surface

LAHDEK

LAHDEK 6PCS 50mm x 1.5mm Piston Ring for Husqvarna 61 266 268 272 365 372 371 362 Jonsered 2063 625 670 2071

SKU CH-74EH-99FGX

Set of six 50 mm × 1.5 mm piston rings fitting Husqvarna, Jonsered and STIHL chainsaws including models 61, 266, 268, 272, 362, 365, 371, 372, 2063, 625, 670 and 2071

  • Six-ring pack covers multiple rebuilds
  • 50 mm bore with 1.5 mm thickness matches original spec
  • Fits Husqvarna 61 266 268 272 362 365 371 372 chainsaws
  • Compatible with Jonsered 2063 625 670 2071 models
  • Replaces OEM part number 503289017

Compatible Chainsaw Models

This piston ring kit fits Husqvarna models 61 266 268 272 362 365 371 372, Jonsered 2063 625 670 2071 and STIHL 038 SW 038 FB 044 MS440. It replaces original part number 503289017 for two-stroke petrol engines. The pack contains six rings for multiple rebuilds.

Verify Bore And Groove Dimensions

Confirm the cylinder bore measures 50 mm and the piston groove accepts a 1.5 mm thick ring before ordering. These rings suit only pistons designed for that exact cross-section. Using them on other bore sizes or groove widths will prevent proper sealing.

Installation In Two-Stroke Top End

Each ring sits in the piston groove to seal combustion pressure against the cylinder wall. A complete top-end refresh also needs a matching piston, circlips, wrist pin and fresh gaskets. The six-ring pack lets you service several saws or keep spares for future maintenance.

Highlights

  • Six-ring pack covers multiple rebuilds
  • 50 mm bore with 1.5 mm thickness matches original spec
  • Fits Husqvarna 61 266 268 272 362 365 371 372 chainsaws
  • Compatible with Jonsered 2063 625 670 2071 models
  • Replaces OEM part number 503289017

Specifications

No published specifications for this item yet.

Questions about this item

Does the pack contain six 50 mm × 1.5 mm rings ready to install, or must I buy anything else?

The box includes six piston rings sized 50 mm × 1.5 mm. No gaskets, clips or tools are supplied, so have those on hand before starting the rebuild.

My saw is a Husqvarna 372 — do these rings match the 50 mm bore and 1.5 mm groove, or do I need a different thickness?

They are made for a 50 mm bore with a 1.5 mm ring groove and replace part 503289017, so they suit the 372 and the other listed Husqvarna and Jonsered models.

Once fitted, what does the 1.5 mm thickness actually do for compression and oil control in a two-stroke chainsaw?

The 1.5 mm ring seats in the original groove to restore factory compression and scrape excess oil, giving reliable two-stroke performance on petrol-powered saws.

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