Intake Manifold Stihl 1127 141 2200 Ethanol: Not compatible with greater than 10% ethanol fuel Ethanol Not compatible with greater than 10% ethanol fuel Packaging type Branded bag Use with 632-550 Cylinder Assembly 632-550 Cylinder Assembly, Use with 632-530 Cylinder Assembly 632-530 Cylinder Assembly FITS MODELS Stihl 029, 039, MS 290, MS 310 and MS 390 chainsaws