{"product_id":"rim-sprocket-kit-3-8-7t-034-ms360","title":"Rim Sprocket Kit 3\/8\" 7T 034, MS360","description":"\u003ch1\u003eSTIHL Rim Sprocket Kit 3\/8\" 7T for 034, 036, MS340 and MS360 Chainsaws - 1125 007 1041\u003c\/h1\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSTIHL Rim Sprocket Kit 3\/8\" 7T\u003c\/strong\u003e (part number \u003cstrong\u003e1125 007 1041\u003c\/strong\u003e) is a genuine OEM clutch drum assembly for the STIHL \u003cstrong\u003e034\u003c\/strong\u003e, \u003cstrong\u003e036\u003c\/strong\u003e, \u003cstrong\u003eMS 340\u003c\/strong\u003e, \u003cstrong\u003eMS 360\u003c\/strong\u003e and \u003cstrong\u003eMS 360 ARCTIC\u003c\/strong\u003e chainsaws. The kit includes the \u003cstrong\u003eclutch drum\u003c\/strong\u003e, \u003cstrong\u003e3\/8\" 7-tooth rim sprocket\u003c\/strong\u003e and \u003cstrong\u003eneedle bearing\u003c\/strong\u003e as a complete replacement assembly — providing everything needed to restore correct chain drive, smooth chain engagement and reliable cutting performance in a single purchase. The 3\/8\" pitch and 7-tooth configuration match the original factory specification for these models, maintaining correct chain speed, bar compatibility and drive geometry. This part supersedes the earlier STIHL reference \u003cstrong\u003e1125 640 2006\u003c\/strong\u003e. Available from Gustharts, an authorised STIHL dealer with UK stock ready to ship.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThis is a complete clutch drum kit, not a rim sprocket only.\u003c\/strong\u003e It includes the drum body, 3\/8\" 7T rim and needle bearing. If you require the replaceable rim sprocket alone (without the drum), check the STIHL parts diagram for your specific model before ordering. Always confirm your machine's model and serial number against the Fits Models list and contact Gustharts if you need compatibility confirmation before purchasing.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenuine STIHL OEM rim sprocket kit\u003c\/strong\u003e — manufactured to original specification for correct fit, chain engagement geometry and drive performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart number 1125 007 1041\u003c\/strong\u003e — also referenced as 11250071041; supersedes earlier part 1125 640 2006\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete kit\u003c\/strong\u003e — includes clutch drum, 3\/8\" 7-tooth rim sprocket and needle bearing as a single assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3\/8\" pitch, 7-tooth configuration\u003c\/strong\u003e — matches the original factory specification for chain speed and drive geometry on compatible models\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRim sprocket design\u003c\/strong\u003e — the replaceable rim sits on the drum body, allowing worn teeth to be replaced without changing the entire assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRestores smooth chain engagement\u003c\/strong\u003e — hooked, worn or damaged sprocket teeth cause rough chain movement, uneven cutting and accelerated bar and chain wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReduces chain and bar wear\u003c\/strong\u003e — a correctly profiled sprocket maintains consistent contact geometry between drive links and teeth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect fit for 034, 036, MS 340, MS 360 and MS 360 ARCTIC\u003c\/strong\u003e — aligns with original clutch drum mounting without modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Kit\u003c\/h2\u003e\n\u003cp\u003eThe STIHL 1125 007 1041 rim sprocket kit is a complete assembly comprising three components:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClutch drum\u003c\/strong\u003e — the body on which the rim sprocket sits; transfers drive from the clutch to the sprocket and bar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3\/8\" 7-tooth rim sprocket\u003c\/strong\u003e — the star-shaped, replaceable drive element that engages the chain drive links; 3\/8\" pitch with 7 teeth matches the chain pitch of the original STIHL bar and chain specification for these models\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeedle bearing\u003c\/strong\u003e — supports the drum on the clutch shaft, reducing friction and wear at the drive interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; text-align:left; border:1px solid #ddd;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eBrand\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTIHL\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eProduct Type\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eRim Sprocket Kit (complete assembly)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eManufacturer Part Number\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e1125 007 1041\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eAlternate Part Number Formats\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e11250071041; supersedes 1125 640 2006\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eChain Pitch\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e3\/8\" (9.32mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eTeeth Count\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003e7 teeth (7T)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eKit Contents\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eClutch drum, 3\/8\" 7T rim sprocket, needle bearing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSprocket Type\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eRim (replaceable) — not a spur sprocket\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eCompatible Models\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eSTIHL 034, 036, MS 340, MS 360, MS 360 ARCTIC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003ePart Type\u003c\/th\u003e\n        \u003ctd style=\"border:1px solid #ddd; padding:10px; text-align:left;\"\u003eGenuine OEM Replacement Part\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFits Models\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSTIHL 034\u003c\/li\u003e\n  \u003cli\u003eSTIHL 036\u003c\/li\u003e\n  \u003cli\u003eSTIHL MS 340\u003c\/li\u003e\n  \u003cli\u003eSTIHL MS 360\u003c\/li\u003e\n  \u003cli\u003eSTIHL MS 360 ARCTIC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAlways confirm your machine's exact model designation and serial number before ordering. Contact Gustharts if you need compatibility confirmation for your specific variant.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhy Replace with a Genuine STIHL Sprocket Kit?\u003c\/h2\u003e\n\u003cp\u003eThe sprocket is one of the highest-wear components in a chainsaw drivetrain. Every cut involves the drive links of the chain engaging and disengaging with the sprocket teeth at high speed — over thousands of cuts, this wears the tooth profile progressively, changing the contact geometry between chain and sprocket. Hooked or worn teeth increase chain skip, cause uneven cutting forces and accelerate wear on the chain's drive links and bar rail simultaneously. On a professional saw like the MS 360, which is regularly used in demanding forestry and timber processing work, ignoring the sprocket interval directly increases running costs across chains and bars.\u003c\/p\u003e\n\u003cp\u003eSTIHL's genuine rim sprocket kit uses a heat-treated steel rim manufactured to exact tooth profile tolerances matched to the 3\/8\" chain pitch used on these models. Aftermarket sprockets vary significantly in tooth geometry, steel hardness and dimensional accuracy — differences that aren't visible on inspection but affect chain life over the full service interval. The OEM needle bearing included in this kit is also matched to the original drum shaft dimensions, ensuring correct running clearance without the tight-spot resistance that an undersized aftermarket bearing can produce during the first hours of use.\u003c\/p\u003e\n\n\u003ch2\u003eAlso Known As\u003c\/h2\u003e\n\u003cp\u003eThe STIHL rim sprocket kit is also referred to as a \u003cstrong\u003eclutch drum and sprocket kit\u003c\/strong\u003e, chain sprocket kit, chainsaw sprocket assembly, sprocket drum kit, drive sprocket kit and clutch drum assembly. The distinguishing terminology for this specific part type is \u003cstrong\u003erim sprocket\u003c\/strong\u003e — the rim is the separate, replaceable star-shaped element that sits on the drum body, as distinct from a \u003cstrong\u003espur sprocket\u003c\/strong\u003e, which is a one-piece design. For correct ordering always use STIHL part number \u003cstrong\u003e1125 007 1041\u003c\/strong\u003e, or the superseded reference \u003cstrong\u003e1125 640 2006\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eOften Replaced Alongside\u003c\/h2\u003e\n\u003cp\u003eThe sprocket should be replaced at the same time as the chain and bar — or at every second chain replacement as a minimum — to maintain matched wear rates across the drive system:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/zh\/collections\/stihl-spare-parts\"\u003eSTIHL 3\/8\" chainsaw chain\u003c\/a\u003e — always replace the chain when fitting a new sprocket to avoid uneven wear between old chain and new teeth\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/zh\/collections\/stihl-spare-parts\"\u003eChainsaw bar for MS 360 \/ 034 \/ 036\u003c\/a\u003e — inspect the bar rail and sprocket nose for wear at the same service point\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/zh\/collections\/stihl-spare-parts\"\u003eClutch assembly for MS 360 \/ 034 \/ 036\u003c\/a\u003e — inspect clutch pads and springs when the drum is removed; replace if worn\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eExplore More\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/zh\/collections\/stihl-spare-parts\"\u003eSTIHL Spare Parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/zh\/pages\/stihl-parts\"\u003eSTIHL Parts Finder\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/zh\/pages\/stihl-machinery\"\u003eSTIHL Machinery\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\n\u003ch3\u003eWhat does the STIHL rim sprocket kit 1125 007 1041 include?\u003c\/h3\u003e\n\u003cp\u003eThe kit includes three components: the clutch drum, a 3\/8\" 7-tooth rim sprocket and a needle bearing — everything needed to replace the complete drive assembly on compatible models.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between a rim sprocket and a spur sprocket?\u003c\/h3\u003e\n\u003cp\u003eA rim sprocket is a two-part design where a replaceable star-shaped rim sits on a separate drum body. This allows the rim to be replaced independently when worn without changing the drum. A spur sprocket is a one-piece integrated design. STIHL's 034, 036 and MS 360 use a rim sprocket system.\u003c\/p\u003e\n\n\u003ch3\u003eWhich models does part 1125 007 1041 fit?\u003c\/h3\u003e\n\u003cp\u003eConfirmed compatible models are the STIHL 034, 036, MS 340, MS 360 and MS 360 ARCTIC. Always confirm your exact model and serial number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhat chain pitch does this sprocket kit work with?\u003c\/h3\u003e\n\u003cp\u003e3\/8\" pitch — this matches the chain and bar specification for compatible STIHL 034, 036 and MS 360 series models. Always confirm your bar and chain pitch before ordering a replacement sprocket.\u003c\/p\u003e\n\n\u003ch3\u003eHow often should the sprocket be replaced?\u003c\/h3\u003e\n\u003cp\u003eSTIHL recommends replacing the sprocket at every second chain change as a minimum. Regular inspection is also recommended — replace immediately if teeth are hooked, visibly worn or chain engagement is rough or uneven.\u003c\/p\u003e\n\n\u003ch3\u003eDoes this kit supersede part number 1125 640 2006?\u003c\/h3\u003e\n\u003cp\u003eYes. Part 1125 007 1041 is the current STIHL part number and supersedes the earlier reference 1125 640 2006. Both numbers refer to the same component for ordering purposes.\u003c\/p\u003e\n\n\u003ch3\u003eShould I replace the chain at the same time as the sprocket?\u003c\/h3\u003e\n\u003cp\u003eYes. Always fit a new chain when replacing the sprocket. Running a worn chain on new sprocket teeth — or vice versa — causes accelerated wear on both components as the pitch profiles no longer match.\u003c\/p\u003e","brand":"Stihl","offers":[{"title":"Default Title","offer_id":58086164398454,"sku":"ST-1125 007 1041","price":39.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/STIHL_genuine_spares_from_authorised_dealer.png?v=1775040092","url":"https:\/\/www.gustharts.com\/zh\/products\/rim-sprocket-kit-3-8-7t-034-ms360","provider":"Gustharts","version":"1.0","type":"link"}