{"product_id":"udc-parts-spindle-assembly-for-troy-bilt-46-inch-deck-complete-direct-fit-replacement-kit","title":"UDC Parts Spindle Assembly for Troy-Bilt 46-inch Deck — Complete Direct-Fit Replacement Kit","description":"\u003cp\u003e\u003cstrong\u003eUDC Parts 918-06989 is a complete spindle assembly engineered to replace worn or damaged spindles on 46-inch Troy-Bilt and compatible MTD decks, restoring cutting performance and deck reliability.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen a mower deck starts vibrating, cutting unevenly, or producing unusual noises, the spindle assembly is often the root cause. This UDC Parts spindle is manufactured as a direct-fit replacement for OEM numbers MTD 618-06989 and 918-06989 and comes as a ready-to-install kit that includes the spindle, mounting hardware, blade bolt, pulley nut, and washer. Built from robust materials, it’s intended to withstand regular lawn care demands while returning your deck to stable, true rotation.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this spindle assembly improve my mower’s cutting performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing a worn spindle reduces blade wobble and uneven blade pitch, which restores a consistent, level cut across the 46-inch deck. The included pulley and nut ensure proper belt alignment so the blade spins smoothly at designed RPMs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OEM numbers MTD 618-06989 and 918-06989 for exact fit.\u003c\/li\u003e\n  \u003cli\u003eRestores correct pulley diameter and alignment for belt tension.\u003c\/li\u003e\n  \u003cli\u003eReduces vibration and improves blade stability for cleaner cuts.\u003c\/li\u003e\n  \u003cli\u003eComplete kit means fewer return trips to the parts store.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the kit and what sizes should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe assembly ships with everything required to swap spindles on compatible decks: one spindle unit, four mounting bolts, one blade mounting bolt, one pulley lock nut, and a washer. The spindle’s dimensions and pulley sizing match OEM specifications so existing blades and belts remain compatible.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpindle height: 6-7\/8\" to match deck clearance requirements.\u003c\/li\u003e\n  \u003cli\u003ePulley outer diameter: 6-1\/4\" to preserve belt geometry.\u003c\/li\u003e\n  \u003cli\u003eSix-point star pattern on the pulley for secure belt seating.\u003c\/li\u003e\n  \u003cli\u003eHardware included for a single-spindle replacement—no extra parts needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich mower models and brands will this part fit?\u003c\/h3\u003e\n\u003cp\u003eThis spindle assembly is designed for a broad range of Troy-Bilt and MTD family machines with 46-inch decks, covering Bronco and Horse series variants and many model numbers specified by MTD. Confirm your mower’s OEM part number or model list before ordering to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Troy-Bilt: Bronco 46 Auto\/46B\/46T\/46X and Horse series (Hydro, XP, Auto).\u003c\/li\u003e\n  \u003cli\u003eReplaces part used on MTD model families including T1500, T1600, T1700, T1900, T2600, T2700.\u003c\/li\u003e\n  \u003cli\u003eCompatible MTD part numbers include 247.27343, 247.27372, 247.25586 and similar listings.\u003c\/li\u003e\n  \u003cli\u003eAlso fits models labeled CLT46CVT, LT 4600, and many CMXGRAM variants listed by MTD.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what tools will I need?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for someone comfortable with basic mower maintenance: lift and secure the deck, remove the old spindle assembly and transfer blade and pulley as needed, then fasten the new spindle with the supplied hardware. Torque values and safety steps vary by mower—follow manufacturer instructions and use standard hand tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical tools: socket set, torque wrench, jack or deck lift, safety gloves and eye protection.\u003c\/li\u003e\n  \u003cli\u003eUse correct torque on bolts to prevent loosening under load.\u003c\/li\u003e\n  \u003cli\u003eInspect belts and blades during replacement; replace worn parts for best results.\u003c\/li\u003e\n  \u003cli\u003eIf unsure, consult a professional to avoid injury or improper installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Gardeners, lawn-care professionals, and DIY owners of Troy-Bilt or compatible MTD tractors with 46-inch decks who need a reliable, full hardware spindle replacement. If your deck shows vibration, uneven cutting, or you’ve confirmed the OEM numbers match 618-06989 \/ 918-06989, this UDC Parts assembly gives you a cost-effective way to restore deck function and extend the life of your mower.\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 MTD 618-06989?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — UDC Parts 918-06989 is a direct replacement for MTD 618-06989 and 918-06989.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the mounting hardware included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit includes the spindle, 4 mounting bolts, blade bolt, pulley lock nut, and washer.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"UDC Parts","offers":[{"title":"Default Title","offer_id":56831747293524,"sku":"B0CQ52376S","price":72.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/udc-parts-spindle-front-view.jpg?v=1787019561","url":"https:\/\/gardenluxe.co.uk\/products\/udc-parts-spindle-assembly-for-troy-bilt-46-inch-deck-complete-direct-fit-replacement-kit","provider":"Gardenluxe Uk","version":"1.0","type":"link"}