{"product_id":"john-deere-48-high-lift-replacement-mower-blades-tcu303153-3-blade-set-carbon-boron-steel","title":"John Deere 48\" High-Lift Replacement Mower Blades TCU30315(3) — 3-Blade Set, Carbon-Boron Steel","description":"\u003cp\u003e\u003cstrong\u003eJohn Deere Original Equipment 3 Blades TCU30315(3) is a direct-fit, high-lift three-blade set engineered for 48-inch decks that restores cutting performance on compatible John Deere mowers.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese are factory-style replacement blades designed to match John Deere specifications for balance, edge retention, and lift. Manufactured using a carbon-and-boron steel blend, the blades combine toughness and hardness to hold a sharp edge longer while resisting breakage. The set replaces OEM part numbers TCU30315 and TCU14939 and fits a wide range of John Deere ZTrak, Quik-Trak, walk-behind, and front-mower models with 48\" decks, as well as some 54\" and 60\" applications listed by the manufacturer.\u003c\/p\u003e\n\n\u003ch3\u003eWhich John Deere models will these blades fit?\u003c\/h3\u003e\n\u003cp\u003eThese blades are intended for many 48\" mower decks across John Deere compact and zero-turn lines. They also fit specific 54\" and 60\" decks for certain models; always confirm deck size and OEM part number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect fit for 48\" decks on models like 647, 647A Quik Trak and 717, 717A ZTrak.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Z510A, Z540R, Z645, Z710A, Z915B and several ZTrak series decks.\u003c\/li\u003e\n  \u003cli\u003eAlso listed for walk-behind and front-mower models including 7H17, 7G18, F620, F680, F687.\u003c\/li\u003e\n  \u003cli\u003eCross-references OEM numbers TCU30315 and TCU14939 for verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do high-lift blades affect grass clipping and deck performance?\u003c\/h3\u003e\n\u003cp\u003eHigh-lift blades generate stronger upward airflow beneath the deck to pull grass blades upright for a cleaner cut and improved bagging or mulching in many conditions. They are best when you need better clippings evacuation to side discharge or a collection system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncreases airflow for more consistent lift of grass before cutting.\u003c\/li\u003e\n  \u003cli\u003eImproves bagging and collection on decks paired with a collection system.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain an even cut across variable grass heights and thicknesses.\u003c\/li\u003e\n  \u003cli\u003eMay create slightly more power draw; verify engine and deck recommendations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction features extend blade life?\u003c\/h3\u003e\n\u003cp\u003eJohn Deere blades TCU30315(3) use a carbon-and-boron steel formulation chosen to balance hardness and toughness. That material mix allows blades to take a sharp edge while resisting fractures and excessive wear under normal mowing use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCarbon-boron steel for improved edge retention and durability.\u003c\/li\u003e\n  \u003cli\u003eFactory balance to reduce vibration and protect spindles and mandrels.\u003c\/li\u003e\n  \u003cli\u003eHigh-lift profile formed to John Deere deck specifications.\u003c\/li\u003e\n  \u003cli\u003eSold as a matched three-blade set to ensure consistent cutting geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and maintain these replacement blades?\u003c\/h3\u003e\n\u003cp\u003eAlways follow John Deere torque specifications and safety procedures when installing blades. Replace all blades on the same deck simultaneously when possible to maintain balance and cutting quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWear gloves and disconnect spark plug or power source before service.\u003c\/li\u003e\n  \u003cli\u003eTorque blade bolts to the mower manufacturer’s specifications.\u003c\/li\u003e\n  \u003cli\u003eInspect blades regularly for nicks, bends, or excessive wear; sharpen as needed.\u003c\/li\u003e\n  \u003cli\u003eReplace blades in matched sets to preserve deck balance and reduce vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This three-blade John Deere replacement set is for owners and technicians who need an OEM-spec high-lift blade kit for 48\" (and certain 54\"\/60\") John Deere decks—ideal for operators who use collection systems, demand cleaner bagging, or want factory-level durability and fitment. If you maintain residential or commercial John Deere mowers listed in the compatibility information and want to preserve factory performance, these blades provide a direct replacement option that maintains deck balance and cutting quality.\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: Are these blades the same as OEM TCU30315?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This product is the John Deere Original Equipment three-blade set that replaces OEM TCU30315 and TCU14939.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use these on a 54\" deck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Some listed models with 54\" decks are compatible, but verify your model and deck size against the fit list before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"John Deere","offers":[{"title":"Default Title","offer_id":56840641478996,"sku":"B00C3KRM42","price":136.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/john-deere-front-view-three-blades.jpg?v=1787072334","url":"https:\/\/gardenluxe.co.uk\/products\/john-deere-48-high-lift-replacement-mower-blades-tcu303153-3-blade-set-carbon-boron-steel","provider":"Gardenluxe Uk","version":"1.0","type":"link"}