{"product_id":"stihl-1141-140-4400","title":"STIHL 1141 140 4400 HD2 Air Filter – Genuine OEM Heavy-Duty Filter","description":"\u003cp data-start=\"347\" data-end=\"750\"\u003eThe STIHL 1141 140 4400 HD2 Air Filter is a genuine STIHL OEM heavy-duty (HD2) air filter designed to protect your engine by trapping fine dust and debris in demanding cutting conditions. HD2 filters are built for long service life and excellent filtration performance, making them ideal for high-output STIHL chainsaws used in heavy wood cutting, dusty environments, and professional workloads.\u003c\/p\u003e\n\u003cp data-start=\"752\" data-end=\"875\"\u003eThis is a new, factory-original STIHL air filter — not aftermarket — and is sold by an authorized STIHL dealer.\u003c\/p\u003e\n\u003cp data-start=\"877\" data-end=\"983\"\u003e⚠️ Fitment varies by model version and production year. Always confirm by part number before ordering.\u003c\/p\u003e\n\u003chr data-start=\"985\" data-end=\"988\"\u003e\n\u003ch2 data-start=\"990\" data-end=\"1009\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cul data-start=\"1011\" data-end=\"1251\"\u003e\n\u003cli data-start=\"1011\" data-end=\"1037\"\u003e\n\u003cp data-start=\"1013\" data-end=\"1037\"\u003eBrand: STIHL (OEM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1038\" data-end=\"1082\"\u003e\n\u003cp data-start=\"1040\" data-end=\"1082\"\u003eSTIHL Part Number: 1141 140 4400\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1083\" data-end=\"1131\"\u003e\n\u003cp data-start=\"1085\" data-end=\"1131\"\u003eFilter Type: HD2 (Heavy-Duty) Air Filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1132\" data-end=\"1183\"\u003e\n\u003cp data-start=\"1134\" data-end=\"1183\"\u003eApplication: Chainsaw air filtration system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1184\" data-end=\"1224\"\u003e\n\u003cp data-start=\"1186\" data-end=\"1224\"\u003eCondition: New, factory original\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1225\" data-end=\"1251\"\u003e\n\u003cp data-start=\"1227\" data-end=\"1251\"\u003eOEM: Genuine STIHL\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1253\" data-end=\"1256\"\u003e\n\u003ch2 data-start=\"1258\" data-end=\"1289\"\u003eWhy Replace Your Air Filter?\u003c\/h2\u003e\n\u003cp data-start=\"1291\" data-end=\"1331\"\u003eA dirty or damaged air filter can cause:\u003c\/p\u003e\n\u003cul data-start=\"1332\" data-end=\"1469\"\u003e\n\u003cli data-start=\"1332\" data-end=\"1376\"\u003e\n\u003cp data-start=\"1334\" data-end=\"1376\"\u003eLoss of power and poor throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1377\" data-end=\"1412\"\u003e\n\u003cp data-start=\"1379\" data-end=\"1412\"\u003eHard starting and rough running\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1413\" data-end=\"1443\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1443\"\u003eIncreased fuel consumption\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1444\" data-end=\"1469\"\u003e\n\u003cp data-start=\"1446\" data-end=\"1469\"\u003ePremature engine wear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1471\" data-end=\"1568\"\u003eReplacing the air filter helps restore proper airflow and protects the engine from abrasive dust.\u003c\/p\u003e\n\u003chr data-start=\"1570\" data-end=\"1573\"\u003e\n\u003ch2 data-start=\"1575\" data-end=\"1623\"\u003eFits STIHL Models (Fitment Must Be Confirmed)\u003c\/h2\u003e\n\u003cp data-start=\"1625\" data-end=\"1720\"\u003eThis HD2 filter is used on select STIHL chainsaws and configurations, including models such as:\u003c\/p\u003e\n\u003cul data-start=\"1722\" data-end=\"2037\"\u003e\n\u003cli data-start=\"1722\" data-end=\"1782\"\u003e\n\u003cp data-start=\"1724\" data-end=\"1782\"\u003eSTIHL MS 261 \/ MS 261 C-M \/ MS 261 C-Q \/ MS 261 C-MQ\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1783\" data-end=\"1822\"\u003e\n\u003cp data-start=\"1785\" data-end=\"1822\"\u003eSTIHL MS 271 \/ MS 271 Farm Boss\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1823\" data-end=\"1858\"\u003e\n\u003cp data-start=\"1825\" data-end=\"1858\"\u003eSTIHL MS 291 \/ MS 291 C-BEQ\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1859\" data-end=\"1879\"\u003e\n\u003cp data-start=\"1861\" data-end=\"1879\"\u003eSTIHL MS 311\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1880\" data-end=\"1966\"\u003e\n\u003cp data-start=\"1882\" data-end=\"1966\"\u003eSTIHL MS 362 \/ MS 362 C-M \/ MS 362 C-MQ \/ MS 362 C-Q \/ MS 362-R (and variants)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1967\" data-end=\"1987\"\u003e\n\u003cp data-start=\"1969\" data-end=\"1987\"\u003eSTIHL MS 391\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1988\" data-end=\"2012\"\u003e\n\u003cp data-start=\"1990\" data-end=\"2012\"\u003eSTIHL MS 241 C-M\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2013\" data-end=\"2037\"\u003e\n\u003cp data-start=\"2015\" data-end=\"2037\"\u003eSTIHL MS 400 C-M\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2039\" data-end=\"2147\"\u003eBecause STIHL often changes components by serial range and version, do not rely on model name alone.\u003c\/p\u003e\n\u003cp data-start=\"2149\" data-end=\"2251\"\u003e✅ Correct way to verify: your parts diagram or existing filter should reference 1141 140 4400.\u003c\/p\u003e\n\u003chr data-start=\"2253\" data-end=\"2256\"\u003e\n\u003ch2 data-start=\"2258\" data-end=\"2315\"\u003eHow to Confirm This Filter Fits Your Saw (Recommended)\u003c\/h2\u003e\n\u003cp data-start=\"2317\" data-end=\"2363\"\u003eBefore ordering, confirm one of the following:\u003c\/p\u003e\n\u003col data-start=\"2365\" data-end=\"2484\"\u003e\n\u003cli data-start=\"2365\" data-end=\"2417\"\u003e\n\u003cp data-start=\"2368\" data-end=\"2417\"\u003eYour current filter shows 1141 140 4400, or\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2418\" data-end=\"2484\"\u003e\n\u003cp data-start=\"2421\" data-end=\"2484\"\u003eYour STIHL parts breakdown lists Air Filter – 1141 140 4400\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"2486\" data-end=\"2609\"\u003eIf you’re unsure, contact P\u0026amp;P Small Engines with your saw’s model and serial number, and we’ll help verify fitment.\u003c\/p\u003e\n\u003chr data-start=\"2611\" data-end=\"2614\"\u003e\n\u003ch2 data-start=\"2616\" data-end=\"2642\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"2644\" data-end=\"3104\"\u003e\n\u003cli data-start=\"2644\" data-end=\"2743\"\u003e\n\u003cp data-start=\"2646\" data-end=\"2743\"\u003eGenuine STIHL OEM HD2 Filter\u003cbr data-start=\"2678\" data-end=\"2681\"\u003eCorrect fit and performance to STIHL factory specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2745\" data-end=\"2835\"\u003e\n\u003cp data-start=\"2747\" data-end=\"2835\"\u003eHeavy-Duty Filtration\u003cbr data-start=\"2772\" data-end=\"2775\"\u003eDesigned to capture fine debris in demanding environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2837\" data-end=\"2928\"\u003e\n\u003cp data-start=\"2839\" data-end=\"2928\"\u003eImproved Engine Protection\u003cbr data-start=\"2869\" data-end=\"2872\"\u003eHelps reduce internal wear from dust and contaminants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2930\" data-end=\"3029\"\u003e\n\u003cp data-start=\"2932\" data-end=\"3029\"\u003eRestores Airflow \u0026amp; Performance\u003cbr data-start=\"2966\" data-end=\"2969\"\u003eHelps maintain correct air\/fuel mixture and cutting power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3031\" data-end=\"3104\"\u003e\n\u003cp data-start=\"3033\" data-end=\"3104\"\u003eNot Aftermarket\u003cbr data-start=\"3052\" data-end=\"3055\"\u003eOEM quality for correct sealing and filtration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3106\" data-end=\"3109\"\u003e\n\u003ch2 data-start=\"3111\" data-end=\"3146\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"3148\" data-end=\"3277\"\u003eIs this a genuine STIHL HD2 air filter?\u003cbr data-start=\"3191\" data-end=\"3194\"\u003eYes. This is a genuine STIHL OEM HD2 air filter, part number 1141 140 4400.\u003c\/p\u003e\n\u003chr data-start=\"3279\" data-end=\"3282\"\u003e\n\u003cp data-start=\"3284\" data-end=\"3492\"\u003eWill this fit my MS 261 \/ MS 271 \/ MS 291 \/ MS 362?\u003cbr data-start=\"3339\" data-end=\"3342\"\u003eIt is used on many versions of those models, but fitment must be confirmed by part number because STIHL changes parts by version and serial range.\u003c\/p\u003e\n\u003chr data-start=\"3494\" data-end=\"3497\"\u003e\n\u003cp data-start=\"3499\" data-end=\"3635\"\u003eWhat does HD2 mean?\u003cbr data-start=\"3522\" data-end=\"3525\"\u003eHD2 refers to STIHL’s heavy-duty air filter design, built for strong filtration and extended service life.\u003c\/p\u003e\n\u003chr data-start=\"3637\" data-end=\"3640\"\u003e\n\u003cp data-start=\"3642\" data-end=\"3784\"\u003eWhen should I replace my air filter?\u003cbr data-start=\"3682\" data-end=\"3685\"\u003eReplace it when it’s damaged, won’t clean properly, or airflow is restricted and performance drops.\u003c\/p\u003e\n\u003chr data-start=\"3786\" data-end=\"3789\"\u003e\n\u003ch2 data-start=\"3791\" data-end=\"3834\"\u003eCommon Search Terms This Product Matches\u003c\/h2\u003e\n\u003cul data-start=\"3836\" data-end=\"3990\"\u003e\n\u003cli data-start=\"3836\" data-end=\"3860\"\u003e\n\u003cp data-start=\"3838\" data-end=\"3860\"\u003eSTIHL HD2 air filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3861\" data-end=\"3884\"\u003e\n\u003cp data-start=\"3863\" data-end=\"3884\"\u003eSTIHL 1141 140 4400\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3885\" data-end=\"3906\"\u003e\n\u003cp data-start=\"3887\" data-end=\"3906\"\u003eMS 261 HD2 filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3907\" data-end=\"3938\"\u003e\n\u003cp data-start=\"3909\" data-end=\"3938\"\u003eMS 271 Farm Boss air filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3939\" data-end=\"3964\"\u003e\n\u003cp data-start=\"3941\" data-end=\"3964\"\u003eMS 291 air filter HD2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3965\" data-end=\"3990\"\u003e\n\u003cp data-start=\"3967\" data-end=\"3990\"\u003eMS 362 HD2 air filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Stihl","offers":[{"title":"Default Title","offer_id":49934951940289,"sku":"1141 140 4400","price":15.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2803\/7330\/files\/1141_140_4400_STIHL.jpg?v=1769537005","url":"https:\/\/pandpsmallengines.com\/products\/stihl-1141-140-4400","provider":"P \u0026 P Small Engines","version":"1.0","type":"link"}