Proline® piston kit for Stihl 4-mix trimmers.
⚠️ IMPORTANT FITMENT: Some models listed may use more than style/part number depending on the manufacturing date. Verify that your model is a 4180 series before purchasing. Please compare your existing part with ours to verify proper fitment; actual product pictures are shown. Parts are Not made in China.
Includes:
- Piston
- Ring
- Circlips
- Wrist pin
Specs:
- 38mm
- Compatible only with the 4-Mix 4180 series
Replaces Stihl OEM #:
- 4180 030 2007, 41800302007
Fits Models:
- FC90, FC91, FC95, FC96, FS83, FS83T, FS87, FS87R, FS89, FS89R, FS90, FS90R, FS91, FS91R, HL90, HL90K, HL95, HL95K, KM90, KM90R, KM91R, SP90, SP90T