{"product_id":"jsxdnwyj-spindle-assembly-for-46-inch-mower-decks-6-3-pulley-6-point-star-shaft-1-pack","title":"JSXDNWYJ Spindle Assembly for 46-inch Mower Decks — 6.3\" Pulley, 6-Point Star Shaft (1-Pack)","description":"\u003cp\u003e\u003cstrong\u003eThis JSXDNWYJ 918-05078A spindle assembly is a direct-replacement spindle with a 6.3\" pulley and 6-point star shaft designed to restore cutting performance on 46-inch mower decks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned to replace OEM part numbers such as MTD\/Cub Cadet 618-05078, 618-05078A, 918-05078 and 918-05078A, this spindle assembly ships as a complete unit (spindle body, pulley, and mounting screws) and fits a wide range of zero-turn and lawn-tractor models with 46-inch decks. The assembly features a 6.3-inch (6-7\/16\") diameter pulley and a 6-point star blade mount to accept star-style blades. At approximately 7-1\/4\" tall, it matches the form factor of the original equipment for straightforward installation.\u003c\/p\u003e\n\n\u003ch3\u003eWill this spindle fit my 46-inch Cub Cadet or Craftsman deck?\u003c\/h3\u003e\n\u003cp\u003eYes — the spindle is built to be compatible with many Cub Cadet, Craftsman, MTD, and Troy-Bilt models that use the listed OEM numbers. Check your current part number, blade mount type, and pulley diameter to confirm compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OEMs: 618-05078, 618-05078A, 918-05078, 918-05078A\u003c\/li\u003e\n  \u003cli\u003eFits Cub Cadet RZT-S46, RZT-L46, ZT1\/ZT2-46 and related series\u003c\/li\u003e\n  \u003cli\u003eCompatible with Craftsman Z530\/Z6400 zero-turn models and select lawn tractors\u003c\/li\u003e\n  \u003cli\u003eWorks with many MTD, Troy-Bilt, Murray, Huskee, and White 46\" deck models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the 6-point star shaft affect blade choice and performance?\u003c\/h3\u003e\n\u003cp\u003eThe 6-point star shaft is intended for star-style blade mounts and keeps blades secure during normal cutting loads. Using blades designed for a star-mount reduces slippage and ensures proper alignment, which helps preserve balance and reduce vibration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e6-point star design accepts corresponding star-mount blades\u003c\/li\u003e\n  \u003cli\u003eProper blade fit reduces wobble and bearing stress\u003c\/li\u003e\n  \u003cli\u003eDesigned to maintain correct blade-to-deck clearance for consistent cuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key specs and what comes in the box?\u003c\/h3\u003e\n\u003cp\u003eThe spindle assembly ships as a ready-to-install unit with the pulley already attached and necessary mounting screws included. Key dimensions and mechanical details are supplied to help you verify fitment against your original spindle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePulley diameter: 6.3 inches (6-7\/16\")\u003c\/li\u003e\n  \u003cli\u003eOverall height: ~7-1\/4 inches (18.4 cm)\u003c\/li\u003e\n  \u003cli\u003eIncludes spindle body, pulley, and mounting screws\u003c\/li\u003e\n  \u003cli\u003eIntended for star-style blade mounting (6-point shaft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow straightforward is installation and what should I check during replacement?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically a moderate DIY task for anyone comfortable removing the mower deck and loosening blade hardware. Use correct torque on mounting bolts and verify belt alignment and pulley orientation before fully tightening.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove spark plug and support deck for safety\u003c\/li\u003e\n  \u003cli\u003eMatch pulley direction and belt routing to original setup\u003c\/li\u003e\n  \u003cli\u003eReplace blades if worn and torque bolts to manufacturer specs\u003c\/li\u003e\n  \u003cli\u003eInspect belts and deck spindles for wear while replacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This JSXDNWYJ spindle assembly is intended for owners and technicians maintaining 46-inch mower decks on zero-turn mowers and lawn tractors who need a reliable, OEM-replacement spindle with a 6.3\" pulley and 6-point star blade mount. It’s a practical choice for replacing a failed or worn spindle on compatible Cub Cadet, Craftsman, Troy-Bilt, MTD and allied-brand machines, restoring proper blade attachment and deck drive geometry without upgrading other deck components.\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 replace OEM 618-05078A?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This JSXDNWYJ 918-05078A spindle is a direct replacement for 618-05078 and 618-05078A.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the pulley already installed?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 6.3\" pulley comes mounted on the spindle and includes mounting screws.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"JSXDNWYJ","offers":[{"title":"Default Title","offer_id":56832490635604,"sku":"B0CT5RV92K","price":74.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/jsxdnwyj-spindle-front-view_cf64f857-5bb4-4ebe-a8cc-e6c37c0ac354.jpg?v=1787030205","url":"https:\/\/gardenluxe.co.uk\/products\/jsxdnwyj-spindle-assembly-for-46-inch-mower-decks-6-3-pulley-6-point-star-shaft-1-pack","provider":"Gardenluxe Uk","version":"1.0","type":"link"}