{"product_id":"moto1988-upper-steering-bushing-bracket-kit-for-polaris-1-inch-shaft-direct-fit-oem-5439731-5257028-restores-tight-steering","title":"MOTO1988 Upper Steering Bushing \u0026 Bracket Kit for Polaris — 1-inch Shaft, Direct-Fit OEM 5439731\/5257028, Restores Tight Steering","description":"\u003cstrong\u003eUpper steering bushing and bracket assembly designed to replace worn OEM steering bushings on many Polaris ATVs and UTVs, restoring tighter steering feel and proper alignment.\u003c\/strong\u003e\n\nThis MOTO1988 replacement set (manufacturer part numbers 5439731, 5257028) includes two steering bushings, one bushing bracket and one 7555878 bushing to match Polaris 1-inch steering shafts used across a long list of Sportsman, Ranger, RZR, Scrambler, Trail Boss and other models. The kit is made as a direct-fit aftermarket replacement to restore steering centering and reduce play where the upper steering column meets the chassis. Before purchasing, confirm fit by comparing model years and OEM numbers with your vehicle.\n\n\u003ch3\u003eWhich Polaris models will this upper steering bushing and bracket fit?\u003c\/h3\u003e\n\u003cp\u003eThis assembly covers a broad range of Polaris models across many years, primarily those using a 1-inch steering shaft. It fits Sportsman (300–1000 ranges), Scrambler, Ranger, RZR, Trail Boss, Trail Blazer, Magnum, Predator, Hawkeye and several utility models listed by year in the product details.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExamples: Sportsman 400\/500\/570\/850\/1000, Ranger 400\/500\/700\/800\/1000, RZR 570\/800, Scrambler 400\/500\/850\/1000.\u003c\/li\u003e\n\u003cli\u003eCheck specific exclusions: some High Lifter and mid\/full-size exceptions noted for certain years.\u003c\/li\u003e\n\u003cli\u003eVerify by OEM numbers: 5439731, 5257028, and our included 7555878 bushing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this replacement improve steering performance?\u003c\/h3\u003e\n\u003cp\u003eWorn upper bushings allow steering shaft play, which leads to vague steering and uneven handling. Installing this new bushing and bracket reduces free play at the steering column, delivering a firmer steering feel and more precise control.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduces column wobble and dead zone at center steering.\u003c\/li\u003e\n\u003cli\u003eHelps maintain correct steering geometry under load.\u003c\/li\u003e\n\u003cli\u003ePrevents accelerated wear by restoring correct shaft alignment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the package and is installation difficult?\u003c\/h3\u003e\n\u003cp\u003eThe kit ships with two steering bushings, a mounting bracket, and one 7555878 bushing—everything you need to replace the upper steering bushing assembly. Basic mechanical skills and common tools are usually sufficient; install time typically ranges from 30–90 minutes depending on model and rust\/corrosion.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncluded: 2x steering bushings, 1x bracket, 1x 7555878 bushing.\u003c\/li\u003e\n\u003cli\u003eTools commonly needed: socket set, screwdrivers, penetrating oil, torque wrench for final fasteners.\u003c\/li\u003e\n\u003cli\u003eTip: Compare old parts to included OEM numbers and photos before final assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there compatibility or maintenance tips I should know?\u003c\/h3\u003e\n\u003cp\u003eDouble-check vehicle year, model and steering shaft diameter (1 inch) before ordering. After installation, inspect steering operation and fastener torque after a short first ride to ensure the assembly seats correctly and fasteners remain secure.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm fit using the listed model years and OEM part numbers (5439731, 5257028).\u003c\/li\u003e\n\u003cli\u003eApply light grease to bushing contact surfaces if recommended by your service manual.\u003c\/li\u003e\n\u003cli\u003eRecheck mounting bolt torque after initial use and periodically thereafter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for\n\nThis MOTO1988 upper steering bushing and bracket set is intended for DIY owners and professional mechanics servicing Polaris ATVs and UTVs who need a direct-fit replacement to restore steering precision. It's a good choice if your vehicle exhibits steering play, uneven steering return-to-center, or if you're performing routine steering maintenance across older model years. If you’re uncertain about fit, compare your existing part numbers to the listing or contact our support for help before ordering.\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 fit my Polaris with a 1-inch steering shaft?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — this kit is for Polaris models using a 1-inch steering shaft; confirm by checking your OEM part numbers (5439731, 5257028) and model year list.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the installation hardware included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The package includes two bushings, one bracket and the 7555878 bushing; you may need basic hand tools and any original fasteners if they are reusable.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MOTO1988","offers":[{"title":"Default Title","offer_id":48085545582750,"sku":"B0C3D47NLP","price":34.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/moto1988-upper-steering-bushing-front-packaging.jpg?v=1785872548","url":"https:\/\/northtrailauto.ca\/products\/moto1988-upper-steering-bushing-bracket-kit-for-polaris-1-inch-shaft-direct-fit-oem-5439731-5257028-restores-tight-steering","provider":"North Trail Auto","version":"1.0","type":"link"}