{"product_id":"rear-diff-complete-trx300-fourtrax-big-red-1988-2000","title":"Rear Differential Assembly For Honda TRX300 Fourtrax Big Red 1988 2000 Fits OEM 41300 HM5 A10","description":"\u003cdiv\u003e\n\u003cp\u003eRear Diff Complete for Honda TRX300 Fourtrax \/ Big Red (1988-2000) is a drop-in final-drive replacement that restores precise power transfer from the transmission to the rear wheels. This complete rear differential assembly eliminates the common wear-induced slop, grinding, and fluid leaks that plague aging TRX300 units, ensuring smooth operation in mud, gravel, and farm lanes. Built for rugged ATV use, it’s designed to be a straightforward, direct-fit fix that keeps your workhorse on the trail and in the field.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket rear differential brings tangible value where it matters: robust materials, tested reliability, and compatibility across the TRX300 family. The unit leverages a sturdy aluminum housing with hardened steel gears, delivering long service life under demanding conditions and providing confident torque transfer in tight turns. Thorough testing and quality checks underpin its suitability for trail rides and demanding farm tasks, making it a dependable alternative to original components.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Vehicle Fitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eModels \/ Series\u003c\/th\u003e\n\u003cth\u003eYears \/ Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX300 A (FourTrax 300)\u003c\/td\u003e\n\u003ctd\u003e1988–1990\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX300 AN (FourTrax 300)\u003c\/td\u003e\n\u003ctd\u003e1991–1997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX300 A\/AC (FourTrax 300)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX300 FW A (FourTrax 4x4)\u003c\/td\u003e\n\u003ctd\u003e1988–1990\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX300 FW A\/AC (FourTrax 4x4)\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX300 FW A\/AN (FourTrax 4x4)\u003c\/td\u003e\n\u003ctd\u003e1991–1997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Reference Part Numbers\u003c\/td\u003e\n\u003ctd\u003e41300-HM5-A10; 41300-HM5-850; 41300-HC4-000; 41300-HC5-970\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eComplete Rear Differential Assembly (rear final drive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAftermarket Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHonda TRX300 Fourtrax \/ Big Red (1988-2000), 2x4 and 4x4 configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShell Material\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Gear Material\u003c\/td\u003e\n\u003ctd\u003eSteel (e.g., 20CrMnTi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApproximately 11 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlacement on Vehicle\u003c\/td\u003e\n\u003ctd\u003eRear, between the driveshaft and rear wheels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eOEM \u0026amp; Aftermarket Cross-Reference Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 23.5553%;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"width: 28.9718%;\"\u003eBrand \/ Type\u003c\/th\u003e\n\u003cth style=\"width: 46.7509%;\"\u003eCross-Reference Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.5553%;\"\u003e41300-HM5-A10\u003c\/td\u003e\n\u003ctd style=\"width: 28.9718%;\"\u003eOEM Honda\u003c\/td\u003e\n\u003ctd style=\"width: 46.7509%;\"\u003eReplaced by aftermarket 41300-HM5-A10; cross-references include 41300-HM5-850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.5553%;\"\u003e41300-HM5-850\u003c\/td\u003e\n\u003ctd style=\"width: 28.9718%;\"\u003eAftermarket Replacement\u003c\/td\u003e\n\u003ctd style=\"width: 46.7509%;\"\u003eCross-references OEM 41300-HM5-A10; compatible with TRX300 A\/AC models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.5553%;\"\u003e41300-HC4-000\u003c\/td\u003e\n\u003ctd style=\"width: 28.9718%;\"\u003eAftermarket Replacement\u003c\/td\u003e\n\u003ctd style=\"width: 46.7509%;\"\u003eCross-reference for TRX300 A FW variants; also listed as 41300-HC4-000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.5553%;\"\u003e41300-HC5-970\u003c\/td\u003e\n\u003ctd style=\"width: 28.9718%;\"\u003eAftermarket Replacement\u003c\/td\u003e\n\u003ctd style=\"width: 46.7509%;\"\u003eCross-reference for TRX300 FW AN variants; also listed as 41300-HC5-970\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eThis complete rear differential is packaged as a ready-to-install unit. It includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003e1 × Complete Rear Differential\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Related items such as mounting hardware or differential fluid are not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Aftermarket Replacement?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDirect-Fit Compatibility:\u003c\/b\u003e Precisely engineered to bolt into the stock TRX300 chassis and drive setup, minimizing modification requirements during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference Coverage:\u003c\/b\u003e Widely cross-referenced to 41300-HM5-A10, 41300-HM5-850, 41300-HC4-000, 41300-HC5-970, ensuring broad compatibility with existing Honda specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials:\u003c\/b\u003e Aluminum shell with hardened steel gears designed for long life in trail, farm, and worksite use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Restores torque transfer and differential action that aging units lose, improving handling in turns and under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuality Assurance:\u003c\/b\u003e Thorough testing to meet reliability expectations for demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-Effective Alternative:\u003c\/b\u003e Provides a reliable non-OEM option that delivers durable performance without OEM pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePre-fill gear oil:\u003c\/b\u003e Gear oil needs to be added before use; 75W-90 gear oil is commonly recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCheck for compatibility:\u003c\/b\u003e Confirm part numbers and fitment before installation, as there are multiple 41300 variants across TRX300 models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSeal inspection:\u003c\/b\u003e Inspect seals and mating surfaces for wear or damage and replace as needed to prevent leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean mating surfaces:\u003c\/b\u003e Ensure the rear housing and mounting points are clean and free of debris to maintain proper alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProper alignment:\u003c\/b\u003e Align the driveshaft and final drive components during installation to avoid binding or premature wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSafety and professional help:\u003c\/b\u003e If unsure, consult a professional installer to verify installation torque and alignment and to avoid drivetrain damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn-out rear differential on a TRX300 can lead to uneven power delivery, increased drivetrain noise, and eventual failure that leaves you stranded. This aftermarket replacement restores reliable torque transfer, quiet operation, and predictable handling, giving you peace of mind on trails and in the field.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319585415542,"sku":"128.032","price":320.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/image_2026-03-03_125057522.png?v=1772542261","url":"https:\/\/dgtagri.co.uk\/products\/rear-diff-complete-trx300-fourtrax-big-red-1988-2000","provider":"DGT Agri","version":"1.0","type":"link"}