{"product_id":"arnold-21-22in-walk-behind-replacement-lawn-mower-blade-3-8-5-8-adapter-mulch-dethatch","title":"Arnold 21–22in Walk-Behind Replacement Lawn Mower Blade — 3\/8–5\/8 Adapter, Mulch \u0026 Dethatch","description":"\u003cstrong\u003eReplacement lawn mower blade designed for 21–22\" walk-behind decks, offering universal center-hole adaptability and multi-function cutting performance.\u003c\/strong\u003e\n\n\u003cp\u003eThis Arnold 490-100-0083 replacement blade restores cutting performance to a worn walk-behind mower blade without needing a full deck swap. Engineered to fit many popular 21-, 22- and some 23-inch residential mower decks, this blade arrives with interchangeable sizers so the center hole matches 3\/8\", 7\/16\" and 5\/8\" spindles. Its sharp edge and detachable nylon dethatching lines let the blade perform multiple tasks—cutting, mulching, dethatching and bagging—by making small adjustments rather than swapping tools.\u003c\/p\u003e\n\n\u003ch3\u003eWhich mowers will this Arnold blade fit?\u003c\/h3\u003e\n\u003cp\u003eThe Arnold blade is made to be compatible with a broad range of lawn tractor brands and walk-behind mowers commonly found in home yards. It fits many Troy-Bilt, Bolens, AYP, Craftsman, Honda, Huskee, Husqvarna, Lawn-Boy, Murray, Poulan, Snapper, Toro, Yard Machines and Yard-Man models with 21-, 22- or some 23-inch decks, but not every model in those lines. Confirm your spindle center-hole size and deck diameter before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits most 21\" and 22\" walk-behind mower decks; select 23\" decks in some cases\u003c\/li\u003e\n  \u003cli\u003eIncludes sizers for 3\/8\", 7\/16\", and 5\/8\" center holes\u003c\/li\u003e\n  \u003cli\u003eWorks with many major residential mower brands listed above\u003c\/li\u003e\n  \u003cli\u003eCheck your mower manual or spindle measurements to ensure compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this blade improve cutting and lawn finish?\u003c\/h3\u003e\n\u003cp\u003eThe blade's sharpened cutting edges restore a clean, even slice to grass blades so lawns look neater and mowing requires fewer passes. Sharper cutting reduces tearing and stress on grass, and the blade’s design helps move clippings through the deck efficiently, which can shorten overall mowing time. For lighter-duty tasks, the nylon dethatching lines can be engaged to lift thatch and surface debris before the blade cuts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSharp edges for cleaner cuts and improved lawn appearance\u003c\/li\u003e\n  \u003cli\u003eEfficient clip flow through the deck reduces clogging\u003c\/li\u003e\n  \u003cli\u003eIntegrated dethatching lines address surface thatch without a separate tool\u003c\/li\u003e\n  \u003cli\u003eHelps reduce number of passes on dense or tall grass\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat functions can this single blade perform?\u003c\/h3\u003e\n\u003cp\u003eThis Arnold blade is multifunctional: with minor adjustments to the supplied nylon lines it can dethatch, rake, mulch, scalp, bag, and cut. The blade’s geometry and edges are balanced for these varied tasks so you don’t need separate specialty blades for many common lawn jobs. For optimal results, follow your mower’s instructions for blade mounting height and line adjustments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDethatches and lifts surface debris using nylon line attachments\u003c\/li\u003e\n  \u003cli\u003eMows and mulches clippings for quicker decomposition\u003c\/li\u003e\n  \u003cli\u003eScalps low spots or trims high growth by adjusting deck height\u003c\/li\u003e\n  \u003cli\u003eBags clippings when used with a bagging setup and correct blade orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install this replacement blade safely and correctly?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires the proper socket size and safe practices: disconnect the spark plug, stabilize the mower, and use the included sizers so the center hole matches your spindle. Torque the blade fastener to the mower manufacturer’s specification and verify the blade clears the deck and other components before use. If unsure, consult your mower manual or a service technician.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways disconnect spark plug before working under the deck\u003c\/li\u003e\n  \u003cli\u003eUse supplied sizers to match 3\/8\", 7\/16\", or 5\/8\" spindle holes\u003c\/li\u003e\n  \u003cli\u003eTighten fasteners to manufacturer torque specs; check blade clearance\u003c\/li\u003e\n  \u003cli\u003eRefer to mower manual for model-specific instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Homeowners and maintenance professionals who want an affordable, versatile replacement blade for common 21–22\" walk-behind mowers. It’s ideal if you need a universal-fit option that restores cutting performance and adds dethatching or mulching capability without buying multiple specialty blades. Confirm deck size and spindle hole diameter before purchasing to ensure a proper fit.\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: Will this blade fit my Craftsman 22-inch mower?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Probably—this Arnold blade fits many Craftsman 21–22\" decks. Measure your spindle center hole and match it to the included 3\/8\", 7\/16\" or 5\/8\" sizers to confirm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this blade to mulch grass clippings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The blade’s edge geometry and nylon line option let it mulch clippings when your mower deck and settings support mulching.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Arnold","offers":[{"title":"Default Title","offer_id":56832345538900,"sku":"B009LZ2E8G","price":68.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/arnold-front-view-blade.jpg?v=1787027562","url":"https:\/\/gardenluxe.co.uk\/products\/arnold-21-22in-walk-behind-replacement-lawn-mower-blade-3-8-5-8-adapter-mulch-dethatch","provider":"Gardenluxe Uk","version":"1.0","type":"link"}