{"product_id":"udc-parts-42-replacement-mower-blades-for-john-deere-7-point-star-mount-2-pack-42-deck-mulching-performance","title":"UDC Parts 42\" Replacement Mower Blades for John Deere 7-Point Star Mount — 2-Pack, 42\" Deck Mulching Performance","description":"\u003cp\u003e\u003cstrong\u003eUDC Parts 2-pack replacement mower blades are 42-inch, 7-point-star-mount John Deere-compatible blades engineered for reliable cutting and mulching on a wide range of 42\" decks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese replacement blades from UDC Parts are made to match the fit and cutting geometry of several John Deere OEM numbers (GY20850, GX22151, AM141033 and more). Each blade measures 21-3\/8\" diagonally, has a 7-point star center mounting pattern and an air-lift profile to improve grass lift and even discharge. They come as a two-piece set so you can refresh both cutting edges at once and restore a cleaner, more uniform cut to your lawn tractor's 42\" deck.\u003c\/p\u003e\n\n\u003ch3\u003eWhich John Deere models and OEM numbers do these blades replace?\u003c\/h3\u003e\n\u003cp\u003eThese UDC blades are designed to replace many common John Deere part numbers and fit a broad list of lawn tractor models using a 42\" deck with a 7-point star spindle. They cover several OEM codes so they are a practical aftermarket option for owners of different model series.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect OEM replacements: GY20850, GX22151, AM141033 (plus UC21583, AM137333, AM141034, and others).\u003c\/li\u003e\n  \u003cli\u003eCompatible model families: D100\/D110\/D120\/D125\/D130 series, S100 series, E100\/E110\/E120\/E130, LA100–LA135, X100–X145, X300\/X500 series with specified 42\" Edge or 42C decks.\u003c\/li\u003e\n  \u003cli\u003eSpecifically fits tractors that use a 7-point star spindle mounting pattern.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I confirm these blades will fit my mower?\u003c\/h3\u003e\n\u003cp\u003eMeasure and verify your deck and spindle before ordering. Blades may vary across years and optional decks, so checking dimensions and mounting type is essential to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm deck size is 42\" and blade length measures approximately 21-3\/8\" diagonally.\u003c\/li\u003e\n  \u003cli\u003eVerify center hole is the 7-point star pattern used by the spine\/spindle on your mower.\u003c\/li\u003e\n  \u003cli\u003eCross-check your tractor’s exact model number and any deck suffix or production range referenced in your owner’s manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key blade dimensions and design features?\u003c\/h3\u003e\n\u003cp\u003eThese replacement blades have specific measurements and a profile optimized for lift and mulching action, designed to work with the airflow geometry of many John Deere 42\" decks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOverall diagonal length: 21-3\/8\"; width: 2-3\/4\"; cutting edge length: 5-7\/16\".\u003c\/li\u003e\n  \u003cli\u003eCenter mounting: 7-point star; air lift height: 1\" for better grass lift.\u003c\/li\u003e\n  \u003cli\u003eSupplied as a two-blade pack so both sides of the deck have matched edges and balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect when using these blades on my lawn?\u003c\/h3\u003e\n\u003cp\u003eWhen properly installed and balanced, these UDC replacement blades restore cutting performance and help produce a more even discharge or mulched finish. They are manufactured to the dimensional standards required for the listed John Deere applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSharper, more consistent cutting across the 42\" swath when blades are balanced and installed correctly.\u003c\/li\u003e\n  \u003cli\u003eImproved lift and grass circulation due to the air-lift profile, aiding mulching and discharge performance.\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack to ensure both blades on the deck match for reduced vibration and improved cut quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These UDC Parts replacement blades are ideal for homeowners and groundskeepers who own John Deere lawn tractors with a 42\" deck that require a 7-point star mount—especially those replacing worn or damaged blades and seeking a cost-effective aftermarket option that matches multiple OEM numbers. If you’re unsure about fitment, confirm your model, deck type, and spindle mounting pattern before purchasing to avoid returns.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these blades fit any 42\" John Deere deck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit many 42\" John Deere decks using a 7-point star spindle, but confirm your model, deck type, and spindle pattern first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these blades sold as a set and is hardware included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: These come as a two-blade pack; mounting hardware is not included—use your tractor's existing bolts and hardware.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"UDC Parts","offers":[{"title":"Default Title","offer_id":54597272404307,"sku":"B0CPM69616","price":80.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/findsworth.co.uk\/products\/udc-parts-42-replacement-mower-blades-for-john-deere-7-point-star-mount-2-pack-42-deck-mulching-performance","provider":"Findsworth","version":"1.0","type":"link"}