WhichPartFits.com

Trimmer Head

Oregon 55-266

Also: 55 266

6 compatible models

The Oregon 55-266 is an aftermarket trimmer head compatible with 6 models across 1 brand. It is a direct cross-reference for OEM part number 4002 710 2193. Compatible equipment includes Stihl FS 100 R, Stihl FS 110 R, Stihl FS 111 R, Stihl FS 130 R, Stihl FS 131 R, and 1 more.

See a wrong fitment? Report a correction.
Verify before ordering: Fitment can vary by serial number, production date, region, and sub-model. Match the OEM number and physical dimensions before ordering.

Amazon Buying Check

Use the Amazon listing to compare kit contents, seller details, shipping, and OEM compatibility notes before ordering.

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Compatible Models

BrandModelOEM #ConfidenceSourceReviewedEvidence
StihlFS 100 R4002 710 2193MediumAftermarket catalog2026-05-20AutoCut C 26-2; bump-feedTrimmer
StihlFS 110 R4002 710 2193MediumAftermarket catalog2026-05-20AutoCut C 26-2; bump-feedTrimmer
StihlFS 111 R4002 710 2193MediumAftermarket catalog2026-05-20AutoCut C 26-2; bump-feedTrimmer
StihlFS 130 R4002 710 2193MediumAftermarket catalog2026-05-20AutoCut C 26-2; bump-feedTrimmer
StihlFS 131 R4002 710 2193MediumAftermarket catalog2026-05-20AutoCut C 26-2; bump-feedTrimmer
StihlFS 90 R4002 710 2193MediumAftermarket catalog2026-05-20AutoCut C 26-2; bump-feedTrimmer

What this part is

Oregon 55-266 is listed here as a trimmer head replacement option. Use this page as a fitment cross-reference, then confirm the removed part, model plate, and seller listing details before buying.

OEM numbers it replaces

4002 710 2193

Alternate spellings

55-266, 55 266

Known exclusions

  • No specific exclusion is listed in the current data. Still verify serial range, production variant, and removed-part details before ordering.

Dimensions and specs

  • No verified dimension field is available for this part. Compare the old part shape, mounting, routing, thread, gap, pitch, gauge, or other part-type-specific dimensions before purchase.

Symptoms that suggest replacement

  • Part is damaged, missing, worn, or fails the model-specific fitment checks below

How to verify before buying

  • Confirm your equipment is one of the compatible models listed above.
  • Match the OEM number, stamped part number, or physical spec against the removed part.
  • Read the model-specific evidence, confidence, source, reviewed date, dimensions, notes, and exclusions before opening an Amazon listing.

Common wrong-fit mistakes

  • Ordering from a broad model-family listing without checking the exact equipment model.
  • Ignoring the old OEM number, stamped part number, or physical dimensions.

Related model and part pages

Stihl FS 100 R trimmer headStihl FS 110 R trimmer headStihl FS 111 R trimmer headStihl FS 130 R trimmer headStihl FS 131 R trimmer headStihl FS 90 R trimmer headOregon 55-256 trimmer headOregon 55-282 trimmer headOregon 55-265 trimmer headOregon 55-993 trimmer head

Amazon buying cautions

  • Check that the Amazon listing includes the exact part number or verified cross-reference shown here.
  • Compare kit contents, gaskets, fuel lines, bulbs, plugs, filters, and dimensions against the removed part before checkout.
  • A listing title can mention the right model and still include the wrong revision, accessory, or generic substitute.