{"product_id":"mtanlo-325-inch-7t-clutch-drum-kit-for-husqvarna-340-345-350-445-450-clutch-oil-pump-needle-bearing","title":"Mtanlo .325-inch 7T Clutch Drum Kit for Husqvarna 340\/345\/350\/445\/450 — Clutch, Oil Pump \u0026 Needle Bearing","description":"\u003cb\u003eMtanlo .325\" 7T clutch drum kit is a direct-fit replacement assembly that includes clutch, drive sprocket, oil pump, worm gear and needle bearing compatible with select Husqvarna chainsaws.\u003c\/b\u003e\n\n\u003cp\u003eThis comprehensive repair kit bundles the parts needed to restore or upgrade the clutch and final-drive components on a range of Husqvarna models. Designed to match the .325\" 7-tooth sprocket specification, the set replaces common OEM numbers and fits popular saws such as the 340, 345, 350, 445 and 450. Each piece is precision-machined for alignment and durability, helping you get back to cutting with minimal downtime.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I know this kit fits my Husqvarna chainsaw?\u003c\/h3\u003e\n\u003cp\u003eConfirm compatibility by checking your saw’s model number and the chain pitch\/specifications. This kit is intended for saws using a .325\" pitch and a 7-tooth clutch sprocket; it also references OEM part numbers for cross-checking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits models: 340, 345, 350, 445, 450\u003c\/li\u003e\n  \u003cli\u003eChain pitch: .325\" with 7T clutch sprocket\u003c\/li\u003e\n  \u003cli\u003eReplaces part numbers: 578097901, 503931801, 537110503\u003c\/li\u003e\n  \u003cli\u003eCheck your existing drum\/sprocket for matching tooth count and bore size\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components are included and why are they important?\u003c\/h3\u003e\n\u003cp\u003eThe kit supplies all wear items that affect drive engagement and oil delivery. Replacing these together ensures correct spacing, reduces vibration, and restores chain lubrication, which extends saw life and performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClutch drum (.325\" 7T) — central drive interface for the chain\u003c\/li\u003e\n  \u003cli\u003eClutch assembly — transfers engine torque to the drum\u003c\/li\u003e\n  \u003cli\u003eOil pump — maintains bar and chain lubrication during operation\u003c\/li\u003e\n  \u003cli\u003eWorm gear — links the clutch to the oil pump drive\u003c\/li\u003e\n  \u003cli\u003eNeedle bearing — reduces friction and supports smooth rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what tools will I need?\u003c\/h3\u003e\n\u003cp\u003eInstallation is moderate for anyone familiar with basic chainsaw maintenance. You’ll need a few hand tools and careful alignment; follow manufacturer torque settings and clean mating surfaces before reassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEssential tools: clutch removal tool, socket set, flat screwdriver, torque wrench\u003c\/li\u003e\n  \u003cli\u003eEstimated time: 30–90 minutes depending on experience\u003c\/li\u003e\n  \u003cli\u003ePrep steps: drain chain oil, remove bar and chain, clean housing\u003c\/li\u003e\n  \u003cli\u003eTip: replace worn or damaged fasteners while servicing the clutch area\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill installing this kit affect chain oiling or cutting performance?\u003c\/h3\u003e\n\u003cp\u003eYes—replacing the oil pump and mating gear can restore consistent lubrication, which helps reduce chain wear and improves safe cutting. A correctly fitted drum and bearing also reduce wobble and vibration for more stable cutting control.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestored oil flow reduces bar and chain overheating\u003c\/li\u003e\n  \u003cli\u003eTight drive alignment improves chain engagement and reduces kickback risk\u003c\/li\u003e\n  \u003cli\u003eNew bearing lowers friction for smoother RPM transfer\u003c\/li\u003e\n  \u003cli\u003eOverall result: better cutting consistency and longer component life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Mtanlo .325\" 7T clutch drum kit is geared toward homeowners, arborists and professional users who maintain Husqvarna models listed above and want a reliable, single-purchase solution for clutch and oil-delivery wear parts. It’s suited for anyone performing routine service, repairing a damaged clutch drum, or upgrading worn drivetrain components to restore factory-like operation. If you need exact fitment, verify model and part numbers before ordering to ensure a trouble-free install.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit include the oil pump and worm gear?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the kit contains the oil pump and worm gear along with the clutch, sprocket, and needle bearing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this drum on a Husqvarna 345?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, this .325\" 7T drum kit is compatible with Husqvarna 345 when the saw uses a .325\" pitch sprocket.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mtanlo","offers":[{"title":"Default Title","offer_id":54195497763000,"sku":"B0B8HJ5TCF","price":62.92,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0636\/7416\/files\/mtanlo-clutch-drum-front.jpg?v=1790583800","url":"https:\/\/canadianlawn.ca\/products\/mtanlo-325-inch-7t-clutch-drum-kit-for-husqvarna-340-345-350-445-450-clutch-oil-pump-needle-bearing","provider":"Canadian Lawn","version":"1.0","type":"link"}