{"product_id":"stihl-gasket-4283-129-0900","title":"STIHL Gasket - 4283 129 0900","description":"\u003cdiv\u003e\n\u003cp\u003eThe STIHL O.E.M. gasket 4283 129 0900 provides a precise fuel-air-sealed interface between the cylinder block and crankcase, restoring factory compression ratios and eliminating two-stroke powerhead leakage pathways.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eO.E.M.-specified neoprene-fiber composite formulated for repeated thermal cycling between 180°F and 400°F\u003c\/li\u003e\n\u003cli\u003ePrecision-cut intake, exhaust, and transfer port apertures aligned to original casting geometry\u003c\/li\u003e\n\u003cli\u003eDistributed pressure profile prevents localized bolt crush and maintains consistent clamping force\u003c\/li\u003e\n\u003cli\u003eChemical-resistant matrix designed to withstand ethanol-blended fuels, gear oils, and cleaning solvents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer Part Number: 4283 129 0900\u003c\/li\u003e\n\u003cli\u003eComponent Classification: Cylinder to Crankcase Interface Gasket\u003c\/li\u003e\n\u003cli\u003eCore Material: Oil-swelling resistant neoprene rubber blended with woven fiberglass reinforcement\u003c\/li\u003e\n\u003cli\u003eOperating Pressure Range: Rated for standard two-stroke cranking pressures up to 160 PSI\u003c\/li\u003e\n\u003cli\u003eSurface Finish Requirement: Flat mating faces within 0.002 inch tolerance; deburr sharp threads prior to assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSTIHL MS 170 Chainsaws\u003c\/li\u003e\n\u003cli\u003eSTIHL MS 180 Chainsaws\u003c\/li\u003e\n\u003cli\u003eSTIHL MS 200 C-T \/ C-BE Chainsaws\u003c\/li\u003e\n\u003cli\u003eSTIHL MS 201 MC \/ TC-M Chainsaws\u003c\/li\u003e\n\u003cli\u003eSTIHL MS 210 Chainsaws\u003c\/li\u003e\n\u003cli\u003eSTIHL FS 56 C-E \/ FS 91 R \/ FS 94 R Brush Cutters\u003c\/li\u003e\n\u003cli\u003eSTIHL KS 61 \/ KS 66 \/ KS 70 Concrete Saws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis component serves as a direct mechanical replacement during standard powerhead teardown procedures. Install only on cleaned aluminum and magnesium surfaces using torque sequence specifications outlined in the official STIHL service manual to preserve head gasket seating integrity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"STIHL","offers":[{"title":"Default Title","offer_id":58552540561789,"sku":"ST-4283 129 0900","price":1.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0565\/9190\/9056\/files\/st4283_129_0900_2d_0001.jpg?v=1787060780","url":"https:\/\/ripongroundcare.com\/products\/stihl-gasket-4283-129-0900","provider":"Ripon Ground Care","version":"1.0","type":"link"}