{"product_id":"91-404-mower-blade-18-11-16","title":"91-404 Mower Blade for John Deere","description":"\u003cp\u003e\u003cstrong\u003e91-404 Mower Blade for John Deere\u003c\/strong\u003e is a replacement mower blade with a profile intended to restore consistent cutting performance. Match the complete part number, mounting pattern, dimensions, and equipment configuration before ordering.\u003c\/p\u003e\u003ch2\u003ePurpose and Value\u003c\/h2\u003e\u003cp\u003eA worn, bent, or incorrect blade can leave uncut strips, tear grass, increase vibration, and reduce discharge quality. Correct geometry helps restore an even cut and limits avoidable spindle and deck vibration.\u003c\/p\u003e\u003ch2\u003eVerified Supplier Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBlade length\u003c\/th\u003e\n\u003ctd\u003e18-5\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBlade width\u003c\/th\u003e\n\u003ctd\u003e2.50\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e0.203\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCenter hole\u003c\/th\u003e\n\u003ctd\u003e13\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOffset\u003c\/th\u003e\n\u003ctd\u003e5\/16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir lift\u003c\/th\u003e\n\u003ctd\u003e7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eSupplier-Verified Application Details\u003c\/h2\u003e\u003cp\u003eCenter hole: 13\/16 Requires 3 blades for 54\" cut High performance blade Superior mulching for bagging and discharge efficiency Enhanced hardening to keep the blade sharper and more durable Made to exact OEM specifications Replaces major brands: John Deere and Scotts\u003c\/p\u003e\u003ch2\u003eSupplier Replacement Reference\u003c\/h2\u003e\u003cp\u003eReplaces major brands: John Deere and Scotts SPECIFICATIONS, DETAILS \u0026amp; SUPPORT Blades Blade Width 2.50\" Thickness 0.203\" Blade Length 18-5\/8\" Center Hole Size 13\/16\" OffSet 5\/16\" Air Lift 7\/8\" General Color Black Volume 243.66 in³ Product UOM Each Weight (with Packaging) 2.5 Lb Product Height 0.203 Product Length 18-5\/8\" Product Width 2.5 SAP Del All No SAP Del DistChain No MODEL FIT GUIDE AND PARTS CROSS REFERENCE Fit Guide JOHN DEERE Replacement Guide JOHN DEERE SCOTTS STENS REVIEWS\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDeck quantity guidance:\u003c\/strong\u003e Requires 3 blades for 54\" cut High performance blade Superior mulching for bagging and discharge efficiency Enhanced hardening to keep the blade sharper and more durable Made to exact OEM s. Confirm the exact deck configuration before ordering.\u003c\/p\u003e\u003ch2\u003eWhat One Purchase Includes\u003c\/h2\u003e\u003cp\u003eOne blade. Multi-blade decks require the quantity stated for the exact deck.\u003c\/p\u003e\u003ch2\u003eFitment Safeguard\u003c\/h2\u003e\u003cp\u003eVerify the complete OEM or replacement number, mower or engine model, serial range, deck size, mounting pattern, orientation, and required quantity. Similar-looking parts can differ in offset, rotation, hole pattern, thread, connector, or other critical details.\u003c\/p\u003e\u003ch2\u003eInstallation and Service\u003c\/h2\u003e\u003cp\u003eNo product-specific installation manual was verified in the supplier record. Follow the equipment manufacturer's procedure. For blades, stop the engine, remove the key, disconnect the spark-plug lead, secure the blade, wear cut-resistant gloves, install in the correct orientation, and torque hardware to the equipment manufacturer's specification.\u003c\/p\u003e","brand":"MowerBlades.com","offers":[{"title":"Default Title","offer_id":49210610090138,"sku":"sku-42266410877181","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/6048\/1946\/files\/magsecykzpha64q7ddra_3675b4ab-b304-4c00-b0d2-b74f8260f8e8.jpg?v=1789882674","url":"https:\/\/mowforgesupply.com\/products\/91-404-mower-blade-18-11-16","provider":"MowForge Supply","version":"1.0","type":"link"}