{"product_id":"aa-ignition-replacement-lawn-mower-spindle-assembly-set-of-2-for-42-inch-deck-includes-pulleys-mounting-hardware-2-year-warra","title":"AA Ignition Replacement Lawn Mower Spindle Assembly Set of 2 for 42-inch Deck — Includes Pulleys \u0026 Mounting Hardware, 2-Year Warra","description":"\u003cp\u003e\u003cstrong\u003eAA Ignition's Replacement Lawn Mower Spindle Assembly with Pulley Set of 2 restores smooth blade rotation and fits many 42-inch Cub Cadet, Troy-Bilt, and MTD decks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your riding mower’s blades are grinding, wobbling, or failing to spin freely, worn spindle assemblies are a common cause. This set from AA Ignition includes two complete spindle units with pulleys and mounting hardware that directly replace a broad range of factory part numbers — providing a cost-effective alternative to dealer parts while maintaining OEM-style fit and finish.\u003c\/p\u003e\n\n\u003ch3\u003eWhich mower models and part numbers does this set replace?\u003c\/h3\u003e\n\n\u003cp\u003eThis spindle set is engineered to work with many popular 42-inch riding mower decks from brands like Cub Cadet, Troy-Bilt, and MTD. It replaces multiple factory references so you can match it to your machine without guesswork.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with models: CC30, RZT-42, RZT-L42, RZT-S42, Bronco, R1000, Z6000, ZT-S42 KH, TB30, TB30R, Mustang XP Zero Turn.\u003c\/li\u003e\n  \u003cli\u003eReplaces part numbers including 918-04822B, 618-04822, 618-04822A\/B, 918-04889, 91804889A, 618-04889\/A, 618-04950, 918-04822\/A, 918-04950.\u003c\/li\u003e\n  \u003cli\u003eSet includes two spindle assemblies, pulleys, and the mounting bolts needed for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will replacing the spindle assembly improve mower performance?\u003c\/h3\u003e\n\n\u003cp\u003eWorn or damaged spindles can cause blade vibration, uneven cuts, noisy operation, and premature belt wear. Replacing both spindles in a 42-inch deck restores alignment and smooth rotation, improving cut quality and reducing strain on other deck components.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReduces grinding and wobble for a cleaner, more uniform cut.\u003c\/li\u003e\n  \u003cli\u003ePrevents belt slippage by restoring correct pulley alignment and tension.\u003c\/li\u003e\n  \u003cli\u003eHelps prolong the life of blades and other deck hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat can I expect from fit, quality, and warranty?\u003c\/h3\u003e\n\n\u003cp\u003eAlthough not an original factory part, these spindles are manufactured to match OEM dimensions and appearance so they mount and function like the originals. AA Ignition backs the assemblies with a two-year warranty for added confidence in durability and fit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect-fit design that installs in place of factory spindles without modification.\u003c\/li\u003e\n  \u003cli\u003eQuality finish and materials intended to withstand routine mowing loads.\u003c\/li\u003e\n  \u003cli\u003eTwo-year manufacturer warranty with customer support for replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what tools are required?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward for anyone comfortable working on mower decks, and the set ships with the required mounting hardware. Typical installation involves raising and securing the mower, removing the blade and old spindle, and bolting the new assembly in place.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCommon tools: socket set, torque wrench, jack or ramps to access the deck safely.\u003c\/li\u003e\n  \u003cli\u003eIncludes mounting bolts — blades and belts are not included and should be inspected or replaced if worn.\u003c\/li\u003e\n  \u003cli\u003eEstimated time: 45–90 minutes per spindle for a DIYer with basic mechanical skills.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This spindle assembly set is designed for owners of 42-inch Cub Cadet, Troy-Bilt, and MTD riding mowers who need a reliable, budget-friendly replacement to restore cutting performance. It's a practical choice for homeowners and small-property managers comfortable performing routine mower maintenance who want OEM-style fit and a solid warranty without dealer pricing.\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: Will this fit my 42-inch Cub Cadet RZT deck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the set is compatible with many RZT 42 models and replaces listed part numbers; verify your deck's part number to confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are replacement bolts included with the spindle assemblies?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the set ships with the required mounting bolts for direct installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AA Ignition","offers":[{"title":"Default Title","offer_id":56818953716052,"sku":"B08C7D3W6J","price":91.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/aa-ignition-spindle-front-assembly.jpg?v=1786961464","url":"https:\/\/gardenluxe.co.uk\/products\/aa-ignition-replacement-lawn-mower-spindle-assembly-set-of-2-for-42-inch-deck-includes-pulleys-mounting-hardware-2-year-warra","provider":"Gardenluxe Uk","version":"1.0","type":"link"}