{"product_id":"4149-030-2012","title":"4149 030 2012 STIHL Piston Ø 35 mm – Genuine OEM Part","description":"\u003ch2 data-start=\"41\" data-end=\"101\"\u003e\u003cstrong data-start=\"44\" data-end=\"101\"\u003e4149 030 2012 STIHL Piston Ø 35 mm – Genuine OEM Part\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"103\" data-end=\"279\"\u003eThe STIHL Piston Ø 35 mm (4149 030 2012) is a genuine OEM engine piston designed for use in select STIHL trimmers, Kombi tools, and hedge trimmers (serial number ranges apply).\u003c\/p\u003e\n\u003cp data-start=\"281\" data-end=\"543\"\u003eThis piston is a critical internal engine component that compresses the fuel\/air mixture and transfers combustion power to the crankshaft. Replacing a scored, worn, seized, or damaged piston helps restore compression, power output, and reliable engine operation.\u003c\/p\u003e\n\u003cp data-start=\"545\" data-end=\"678\"\u003eManufactured to STIHL factory specifications, this OEM piston provides correct diameter, proper fitment, and long-lasting durability.\u003c\/p\u003e\n\u003chr data-start=\"680\" data-end=\"683\"\u003e\n\u003ch2 data-start=\"685\" data-end=\"707\"\u003e\u003cstrong data-start=\"688\" data-end=\"707\"\u003eProduct Details\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"709\" data-end=\"924\"\u003e\u003cstrong data-start=\"709\" data-end=\"729\"\u003eOEM Part Number:\u003c\/strong\u003e 4149 030 2012\u003cbr data-start=\"743\" data-end=\"746\"\u003e\u003cstrong data-start=\"746\" data-end=\"756\"\u003eBrand:\u003c\/strong\u003e STIHL (Genuine OEM)\u003cbr data-start=\"776\" data-end=\"779\"\u003e\u003cstrong data-start=\"779\" data-end=\"793\"\u003ePart Type:\u003c\/strong\u003e Piston\u003cbr data-start=\"800\" data-end=\"803\"\u003e\u003cstrong data-start=\"803\" data-end=\"812\"\u003eSize:\u003c\/strong\u003e Ø 35 mm\u003cbr data-start=\"820\" data-end=\"823\"\u003e\u003cstrong data-start=\"823\" data-end=\"839\"\u003eApplication:\u003c\/strong\u003e Engine \/ Cylinder Assembly (varies by model)\u003cbr data-start=\"884\" data-end=\"887\"\u003e\u003cstrong data-start=\"887\" data-end=\"901\"\u003eCondition:\u003c\/strong\u003e New Genuine OEM Part\u003c\/p\u003e\n\u003chr data-start=\"926\" data-end=\"929\"\u003e\n\u003ch2 data-start=\"931\" data-end=\"946\"\u003e\u003cstrong data-start=\"934\" data-end=\"946\"\u003eFunction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"948\" data-end=\"979\"\u003eThis OEM piston is designed to:\u003c\/p\u003e\n\u003cul data-start=\"981\" data-end=\"1255\"\u003e\n\u003cli data-start=\"981\" data-end=\"1038\"\u003e\n\u003cp data-start=\"983\" data-end=\"1038\"\u003eRestore engine compression and combustion performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1039\" data-end=\"1091\"\u003e\n\u003cp data-start=\"1041\" data-end=\"1091\"\u003eTransfer power from combustion to the crankshaft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1092\" data-end=\"1144\"\u003e\n\u003cp data-start=\"1094\" data-end=\"1144\"\u003eReplace scored, worn, seized, or damaged pistons\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1145\" data-end=\"1195\"\u003e\n\u003cp data-start=\"1147\" data-end=\"1195\"\u003eImprove starting, power, and throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1255\"\u003e\n\u003cp data-start=\"1198\" data-end=\"1255\"\u003eSupport proper engine reliability after top-end rebuild\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1257\" data-end=\"1378\"\u003e⚠️ A damaged piston can cause low compression, hard starting, loss of power, excessive heat, and complete engine failure.\u003c\/p\u003e\n\u003chr data-start=\"1380\" data-end=\"1383\"\u003e\n\u003ch2 data-start=\"1385\" data-end=\"1420\"\u003e\u003cstrong data-start=\"1388\" data-end=\"1420\"\u003eVerify Fitment (Recommended)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1422\" data-end=\"1447\"\u003eBefore ordering, confirm:\u003c\/p\u003e\n\u003cul data-start=\"1449\" data-end=\"1667\"\u003e\n\u003cli data-start=\"1449\" data-end=\"1486\"\u003e\n\u003cp data-start=\"1451\" data-end=\"1486\"\u003eOEM part number \u003cstrong data-start=\"1467\" data-end=\"1484\"\u003e4149 030 2012\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1487\" data-end=\"1518\"\u003e\n\u003cp data-start=\"1489\" data-end=\"1518\"\u003ePiston diameter \u003cstrong data-start=\"1505\" data-end=\"1516\"\u003eØ 35 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1519\" data-end=\"1555\"\u003e\n\u003cp data-start=\"1521\" data-end=\"1555\"\u003eYour STIHL model is listed below\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1556\" data-end=\"1610\"\u003e\n\u003cp data-start=\"1558\" data-end=\"1610\"\u003eYour machine serial number matches the range shown\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1611\" data-end=\"1667\"\u003e\n\u003cp data-start=\"1613\" data-end=\"1667\"\u003ePart location matches your engine \/ cylinder diagram\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1669\" data-end=\"1763\"\u003e⚠️ Always verify fitment by OEM part number, piston size, and serial number for best accuracy.\u003c\/p\u003e\n\u003chr data-start=\"1765\" data-end=\"1768\"\u003e\n\u003ch2 data-start=\"1770\" data-end=\"1812\"\u003e\u003cstrong data-start=\"1773\" data-end=\"1810\"\u003eCompatibility (Fits STIHL Models)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1813\" data-end=\"1844\"\u003e\u003cem data-start=\"1813\" data-end=\"1844\"\u003e(Serial number range applies)\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"1846\" data-end=\"1887\"\u003e\u003cstrong data-start=\"1850\" data-end=\"1887\"\u003eHedge Trimmers \/ Long-Reach Units\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1888\" data-end=\"2123\"\u003e\n\u003cli data-start=\"1888\" data-end=\"1945\"\u003e\n\u003cp data-start=\"1890\" data-end=\"1945\"\u003e\u003cstrong data-start=\"1890\" data-end=\"1901\"\u003eHL 91 K\u003c\/strong\u003e (Engine from serial number \u003cstrong data-start=\"1929\" data-end=\"1942\"\u003e516095589\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1946\" data-end=\"2002\"\u003e\n\u003cp data-start=\"1948\" data-end=\"2002\"\u003e\u003cstrong data-start=\"1948\" data-end=\"1957\"\u003eHL 94\u003c\/strong\u003e (Engine up to serial number \u003cstrong data-start=\"1986\" data-end=\"1999\"\u003e514368761\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2003\" data-end=\"2061\"\u003e\n\u003cp data-start=\"2005\" data-end=\"2061\"\u003e\u003cstrong data-start=\"2005\" data-end=\"2016\"\u003eHL 94 K\u003c\/strong\u003e (Engine up to serial number \u003cstrong data-start=\"2045\" data-end=\"2058\"\u003e514368761\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2062\" data-end=\"2123\"\u003e\n\u003cp data-start=\"2064\" data-end=\"2123\"\u003e\u003cstrong data-start=\"2064\" data-end=\"2078\"\u003eHL 94 KC-E\u003c\/strong\u003e (Engine up to serial number \u003cstrong data-start=\"2107\" data-end=\"2120\"\u003e514368761\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2125\" data-end=\"2156\"\u003e\u003cstrong data-start=\"2129\" data-end=\"2156\"\u003eTrimmers \/ Brushcutters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2157\" data-end=\"2215\"\u003e\n\u003cli data-start=\"2157\" data-end=\"2215\"\u003e\n\u003cp data-start=\"2159\" data-end=\"2215\"\u003e\u003cstrong data-start=\"2159\" data-end=\"2170\"\u003eFS 94 R\u003c\/strong\u003e (Engine up to serial number \u003cstrong data-start=\"2199\" data-end=\"2212\"\u003e514309587\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2217\" data-end=\"2236\"\u003e\u003cstrong data-start=\"2221\" data-end=\"2236\"\u003eKombi Tools\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2237\" data-end=\"2295\"\u003e\n\u003cli data-start=\"2237\" data-end=\"2295\"\u003e\n\u003cp data-start=\"2239\" data-end=\"2295\"\u003e\u003cstrong data-start=\"2239\" data-end=\"2250\"\u003eKM 94 R\u003c\/strong\u003e (Engine up to serial number \u003cstrong data-start=\"2279\" data-end=\"2292\"\u003e514291126\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2297\" data-end=\"2300\"\u003e\n\u003ch2 data-start=\"2302\" data-end=\"2327\"\u003e\u003cstrong data-start=\"2305\" data-end=\"2327\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2329\" data-end=\"2701\"\u003e\n\u003cli data-start=\"2329\" data-end=\"2380\"\u003e\n\u003cp data-start=\"2331\" data-end=\"2380\"\u003eTurn off engine and allow it to cool completely\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2381\" data-end=\"2438\"\u003e\n\u003cp data-start=\"2383\" data-end=\"2438\"\u003eRemove cylinder and inspect cylinder wall for scoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2439\" data-end=\"2485\"\u003e\n\u003cp data-start=\"2441\" data-end=\"2485\"\u003eRemove old piston and wrist pin components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2486\" data-end=\"2540\"\u003e\n\u003cp data-start=\"2488\" data-end=\"2540\"\u003eInstall \u003cstrong data-start=\"2496\" data-end=\"2538\"\u003eSTIHL OEM piston Ø 35 mm 4149 030 2012\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2541\" data-end=\"2628\"\u003e\n\u003cp data-start=\"2543\" data-end=\"2628\"\u003eEnsure piston ring orientation is correct and ring end gaps are positioned properly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2629\" data-end=\"2701\"\u003e\n\u003cp data-start=\"2631\" data-end=\"2701\"\u003eReassemble cylinder and torque fasteners evenly to OEM specification\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2703\" data-end=\"2815\"\u003e⚠️ Always inspect the cylinder for damage. Installing a new piston in a scored cylinder can cause rapid failure.\u003c\/p\u003e\n\u003chr data-start=\"2817\" data-end=\"2820\"\u003e\n\u003ch2 data-start=\"2822\" data-end=\"2845\"\u003e\u003cstrong data-start=\"2825\" data-end=\"2845\"\u003eMaintenance Tips\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2847\" data-end=\"3132\"\u003e\n\u003cli data-start=\"2847\" data-end=\"2892\"\u003e\n\u003cp data-start=\"2849\" data-end=\"2892\"\u003eUse fresh fuel mix with correct oil ratio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2893\" data-end=\"2944\"\u003e\n\u003cp data-start=\"2895\" data-end=\"2944\"\u003eKeep air filter clean to prevent dirt ingestion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2945\" data-end=\"3007\"\u003e\n\u003cp data-start=\"2947\" data-end=\"3007\"\u003eAvoid running with air leaks (intake boot, gaskets, seals)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3008\" data-end=\"3057\"\u003e\n\u003cp data-start=\"3010\" data-end=\"3057\"\u003eReplace piston rings if needed during rebuild\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3058\" data-end=\"3132\"\u003e\n\u003cp data-start=\"3060\" data-end=\"3132\"\u003eUse genuine STIHL OEM pistons for correct fit, balance, and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STIHL","offers":[{"title":"Default Title","offer_id":58959935471697,"sku":"4149 030 2012","price":33.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/2570\/0177\/files\/s-l1600_f8daed5d-c7cf-431c-a39e-c4764dbc3989.webp?v=1770410376","url":"https:\/\/www.barryspowerequipment.com\/products\/4149-030-2012","provider":"Barry's Power Equipment","version":"1.0","type":"link"}