{"product_id":"bdu-21l-200-hydrostatic-transmission","title":"Hydro-Gear BDU-21L-200 Hydrostatic Transmission","description":"\u003cp\u003e\u003cstrong\u003eA complete hydrostatic transmission for restoring controlled, dependable machine travel.\u003c\/strong\u003e The \u003cstrong\u003eBDU-21L-200\u003c\/strong\u003e belongs to the BDU-21L family and is intended for the application identified by its complete build code.\u003c\/p\u003e\u003cp\u003eThis is not a universal replacement. Hydrostatic transmissions in the same family can differ in input shaft, controls, ports, rotation, mounting, and internal configuration even when their housings look alike.\u003c\/p\u003e\u003ch3\u003eWhy This Matters\u003c\/h3\u003e\u003cp\u003eThe transmission must match both the mechanical installation and the hydraulic behavior expected by the equipment. Confirming the full tag number before ordering can prevent an expensive mismatch and protect connected drivetrain components.\u003c\/p\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart \/ build code\u003c\/th\u003e\n\u003ctd\u003eBDU-21L-200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct family\u003c\/th\u003e\n\u003ctd\u003eBDU-21L hydrostatic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent type\u003c\/th\u003e\n\u003ctd\u003eHydrostatic drive transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eOutdoor power equipment \/ mobile equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eExact build-code verification required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eInstallation \u0026amp; Service Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDetermine why the original transmission failed and correct belt, cooling, linkage, or contamination issues before installing the replacement.\u003c\/li\u003e\n\u003cli\u003eUse the equipment manufacturer’s specified oil, filtration, adjustment, and purge procedures.\u003c\/li\u003e\n\u003cli\u003eNo equipment-specific installation PDF has been verified for this listing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore You Order\u003c\/h3\u003e\u003cp\u003eMatch the complete part\/build code and verify the original component, equipment model and serial number, plus all relevant shaft, axle, control, port, brake, rotation, mounting, and revision details. A partial code or similar appearance is not enough to confirm fitment.\u003c\/p\u003e\u003ch3\u003eLead Time, Returns \u0026amp; Warranty\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMany HydroDrives-supplied products are built to order and may require approximately 10–15 business days before shipment.\u003c\/li\u003e\n\u003cli\u003eOrders may ship from a U.S. partner warehouse, subject to confirmation.\u003c\/li\u003e\n\u003cli\u003eApproved returns may be subject to a 20% restocking fee; shipping is nonrefundable.\u003c\/li\u003e\n\u003cli\u003eBuild-to-order, installed, used, damaged, or fluid-filled products may be nonreturnable.\u003c\/li\u003e\n\u003cli\u003eWarranty coverage may require authorized-service-center installation. Retain service records.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HydroDrives.com","offers":[{"title":"BDU-21L-200 \/ BDU-21L-200","offer_id":49203956514970,"sku":"sku-819419687","price":2504.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/6048\/1946\/files\/bdu_65474add-eb4c-4395-93aa-e6e8813acb85.png?v=1788981116","url":"https:\/\/mowforgesupply.com\/products\/bdu-21l-200-hydrostatic-transmission","provider":"MowForge Supply","version":"1.0","type":"link"}