{"product_id":"deck-belt-m169485","title":"M169485 \/ UC39236 Deck Belt for John Deere X330 X350 X570 X590","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eM169485 \/ UC39236 mower deck drive belt\u003c\/strong\u003e fits select John Deere X300-Series and X500-Series tractors using compatible mower-deck configurations.\u003c\/p\u003e\n\u003cp\u003eThe supplier lists this polyester replacement belt at approximately \u003cstrong\u003e74-3\/4 inches long, 0.60 inch wide, and 0.47 inch thick\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOn compatible multi-belt mower decks, M169485 \/ UC39236 is commonly used as the \u003cstrong\u003eprimary deck-drive belt\u003c\/strong\u003e that transfers power from the PTO clutch to the mower deck. A separate secondary belt may be required to drive the spindle-pulley system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The supplier associates this belt with select 48-, 54-, and 60-inch mower-deck applications. Not every mower or deck within the listed model families uses the same belt. Match the original belt number before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket mower-deck drive V-belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Replacement Number:\u003c\/strong\u003e M169485\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Replacement Number:\u003c\/strong\u003e UC39236\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplier Reference:\u003c\/strong\u003e BT476A1001AA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplier-Listed Length:\u003c\/strong\u003e Approximately 74-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplier-Listed Width:\u003c\/strong\u003e Approximately 0.60 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplier-Listed Thickness:\u003c\/strong\u003e Approximately 0.47 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyester\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Included:\u003c\/strong\u003e One belt\u003c\/li\u003e\n\u003cli\u003eUsed on select John Deere mower-deck drive systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eReplaces These Belt Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eM169485\u003c\/li\u003e\n\u003cli\u003eUC39236\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSupplier Reference Number\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBT476A1001AA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSearch-Friendly Number Formats\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eM169485\u003c\/li\u003e\n\u003cli\u003e169485\u003c\/li\u003e\n\u003cli\u003eUC39236\u003c\/li\u003e\n\u003cli\u003e39236\u003c\/li\u003e\n\u003cli\u003eBT476A1001AA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBelt Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Mower-deck drive belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e Approximately 74-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e Approximately 0.60 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e Approximately 0.47 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyester\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e One belt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePublished belt measurements can vary depending on how the belt is positioned and measured. Use the original \u003cstrong\u003eM169485 or UC39236\u003c\/strong\u003e part number as the primary fitment check.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible John Deere Models\u003c\/h2\u003e\n\u003cp\u003eThe supplier associates the M169485 \/ UC39236 belt with select mower-deck configurations on the following John Deere tractors.\u003c\/p\u003e\n\u003ch3\u003eJohn Deere X300 Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eX330\u003c\/li\u003e\n\u003cli\u003eX350\u003c\/li\u003e\n\u003cli\u003eX354\u003c\/li\u003e\n\u003cli\u003eX370\u003c\/li\u003e\n\u003cli\u003eX380\u003c\/li\u003e\n\u003cli\u003eX384\u003c\/li\u003e\n\u003cli\u003eX390\u003c\/li\u003e\n\u003cli\u003eX394\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eJohn Deere X500 Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eX570\u003c\/li\u003e\n\u003cli\u003eX580\u003c\/li\u003e\n\u003cli\u003eX584\u003c\/li\u003e\n\u003cli\u003eX590\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment note:\u003c\/strong\u003e These are supplier-provided model examples. This belt fits only the mower-deck and belt-routing configurations using M169485 or UC39236.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible Deck-Size Paths\u003c\/h2\u003e\n\u003cp\u003eThe supplier associates this belt with select:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e48-inch mower decks\u003c\/li\u003e\n\u003cli\u003e54-inch mower decks\u003c\/li\u003e\n\u003cli\u003e60-inch mower decks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDeck width alone does not confirm fitment. The same tractor family may be available with more than one mower-deck size, belt system, or production configuration.\u003c\/p\u003e\n\u003cp\u003eConfirm that the original belt is marked \u003cstrong\u003eM169485 or UC39236\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePrimary Deck-Belt Position\u003c\/h2\u003e\n\u003cp\u003eMany compatible John Deere mower decks use separate primary and secondary belts:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003eprimary deck belt\u003c\/strong\u003e transfers power from the engine-mounted PTO clutch to the mower deck.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003esecondary deck belt\u003c\/strong\u003e routes through the spindle and idler pulleys to turn the mower blades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eM169485 \/ UC39236 is commonly used in the primary deck-drive position on compatible multi-belt mower decks.\u003c\/p\u003e\n\u003cp\u003eThis listing includes one M169485 \/ UC39236 belt only. It does not include a separate secondary spindle-drive belt.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eJohn Deere X330 Fitment Note\u003c\/h2\u003e\n\u003cp\u003eThe supplier lists the M169485 \/ UC39236 belt for select John Deere X330 mower-deck configurations.\u003c\/p\u003e\n\u003cp\u003eThe X330 can be equipped with more than one mower-deck type. Confirm that the original primary deck belt is marked M169485 or UC39236 before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eJohn Deere X350, X354 and X370 Fitment Note\u003c\/h2\u003e\n\u003cp\u003eThe supplier associates this belt with select X350, X354, and X370 mower-deck applications.\u003c\/p\u003e\n\u003cp\u003eThese tractors may use different belt paths according to the installed deck. Match the original belt number, deck size, belt position, and routing rather than ordering from the tractor model alone.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eJohn Deere X380, X384, X390 and X394 Fitment Note\u003c\/h2\u003e\n\u003cp\u003eThe supplier lists select X380, X384, X390, and X394 mower-deck configurations among the compatible applications.\u003c\/p\u003e\n\u003cp\u003eConfirm that M169485 or UC39236 is the belt being replaced. A separate secondary spindle-drive belt may also be used on compatible decks.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eJohn Deere X570, X580, X584 and X590 Fitment Note\u003c\/h2\u003e\n\u003cp\u003eThe supplier associates M169485 \/ UC39236 with select X570, X580, X584, and X590 mower-deck configurations.\u003c\/p\u003e\n\u003cp\u003eThese tractor families may use different 48-, 54-, or 60-inch mower decks. Confirm the original belt number and belt position before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Symptoms of a Worn Primary Deck Belt\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePTO clutch engages but the mower deck does not begin turning\u003c\/li\u003e\n\u003cli\u003eSecondary belt and mower blades turn slowly under cutting load\u003c\/li\u003e\n\u003cli\u003eBelt squeals when the PTO clutch is activated\u003c\/li\u003e\n\u003cli\u003eBelt slips between the PTO clutch and mower deck\u003c\/li\u003e\n\u003cli\u003eVisible cracking, glazing, fraying, or burned belt surfaces\u003c\/li\u003e\n\u003cli\u003eBelt repeatedly jumps off the clutch or deck input pulley\u003c\/li\u003e\n\u003cli\u003eLoose belt tension with the tension system engaged\u003c\/li\u003e\n\u003cli\u003eBurning-rubber smell near the engine or front of the mower deck\u003c\/li\u003e\n\u003cli\u003eIntermittent blade operation even though the clutch engages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePark the tractor on a level surface and remove the ignition key.\u003c\/li\u003e\n\u003cli\u003eDisconnect the spark-plug leads before working near the PTO clutch or mower deck.\u003c\/li\u003e\n\u003cli\u003ePhotograph or sketch the original belt routing before removal.\u003c\/li\u003e\n\u003cli\u003eIdentify the primary and secondary deck belts before disassembly.\u003c\/li\u003e\n\u003cli\u003eInspect the PTO clutch pulley and deck input pulley for wear or damage.\u003c\/li\u003e\n\u003cli\u003eInspect all idler pulleys, tension springs, tension arms, and belt guides.\u003c\/li\u003e\n\u003cli\u003eConfirm that the V-shaped and flat sides of the belt contact the correct pulleys.\u003c\/li\u003e\n\u003cli\u003eMake sure the replacement belt is completely seated inside every pulley groove.\u003c\/li\u003e\n\u003cli\u003eRotate the mower-deck pulley system manually before starting the engine.\u003c\/li\u003e\n\u003cli\u003eReplace seized pulleys or damaged tension components before operating the new belt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eQuick Ship Fulfillment\u003c\/h2\u003e\n\u003cp\u003eThis item may ship directly from one of our trusted U.S. distribution partners to help reduce transit time. Packaging, labeling, or warehouse origin may vary, but the part will match the replacement numbers, fitment notes, and supplier specifications shown in this listing.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Buy From PTO Direct USA\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart-number-first listings to help reduce fitment mistakes\u003c\/li\u003e\n\u003cli\u003eFocused mower-deck and PTO replacement parts\u003c\/li\u003e\n\u003cli\u003eClear belt-position and model-fitment notes\u003c\/li\u003e\n\u003cli\u003ePractical support when you need help checking compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat does the M169485 belt replace?\u003c\/h3\u003e\n\u003cp\u003eThe supplier cross-references this aftermarket belt to John Deere numbers \u003cstrong\u003eM169485 and UC39236\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs M169485 the same replacement path as UC39236?\u003c\/h3\u003e\n\u003cp\u003eYes. The supplier lists this belt as a replacement for both M169485 and UC39236 when the mower-deck configuration and dimensions match.\u003c\/p\u003e\n\u003ch3\u003eHow long is the supplier-listed M169485 belt?\u003c\/h3\u003e\n\u003cp\u003eThe supplier lists the belt at approximately \u003cstrong\u003e74-3\/4 inches long\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow wide is the supplier-listed M169485 belt?\u003c\/h3\u003e\n\u003cp\u003eThe supplier lists the belt at approximately \u003cstrong\u003e0.60 inch wide\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow thick is the supplier-listed M169485 belt?\u003c\/h3\u003e\n\u003cp\u003eThe supplier lists the belt at approximately \u003cstrong\u003e0.47 inch thick\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat material is the belt made from?\u003c\/h3\u003e\n\u003cp\u003eThe supplier describes the belt as a polyester replacement belt.\u003c\/p\u003e\n\u003ch3\u003eHow many belts are included?\u003c\/h3\u003e\n\u003cp\u003eThis listing includes \u003cstrong\u003eone M169485 \/ UC39236 belt\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs M169485 a primary or secondary deck belt?\u003c\/h3\u003e\n\u003cp\u003eOn many compatible multi-belt John Deere mower decks, M169485 \/ UC39236 is used as the \u003cstrong\u003eprimary deck-drive belt\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes this listing include the secondary deck belt?\u003c\/h3\u003e\n\u003cp\u003eNo. This listing includes one M169485 \/ UC39236 belt only. A separate secondary spindle-drive belt may be required.\u003c\/p\u003e\n\u003ch3\u003eDoes M169485 fit the John Deere X330?\u003c\/h3\u003e\n\u003cp\u003eThe supplier associates the belt with select X330 mower-deck configurations. Confirm the original M169485 or UC39236 number before ordering.\u003c\/p\u003e\n\u003ch3\u003eDoes M169485 fit the John Deere X350?\u003c\/h3\u003e\n\u003cp\u003eThe supplier lists select X350 mower-deck applications. Match the original belt number and installed deck.\u003c\/p\u003e\n\u003ch3\u003eDoes M169485 fit the John Deere X380?\u003c\/h3\u003e\n\u003cp\u003eThe supplier associates this belt with select X380 mower-deck configurations. Confirm the original belt number and belt position.\u003c\/p\u003e\n\u003ch3\u003eDoes M169485 fit the John Deere X390?\u003c\/h3\u003e\n\u003cp\u003eThe supplier lists select X390 mower-deck applications using the M169485 \/ UC39236 belt path.\u003c\/p\u003e\n\u003ch3\u003eDoes M169485 fit the John Deere X570?\u003c\/h3\u003e\n\u003cp\u003eThe supplier associates this belt with select X570 mower-deck configurations. Match the original belt number and installed deck before ordering.\u003c\/p\u003e\n\u003ch3\u003eDoes M169485 fit the John Deere X590?\u003c\/h3\u003e\n\u003cp\u003eThe supplier lists select X590 mower-deck configurations. Not every deck used on the X590 uses this belt.\u003c\/p\u003e\n\u003ch3\u003eDoes M169485 fit every 48-, 54-, or 60-inch John Deere deck?\u003c\/h3\u003e\n\u003cp\u003eNo. The supplier associates the belt with select applications only. Match the original belt number, deck configuration, belt position, dimensions, and pulley routing.\u003c\/p\u003e\n\u003ch3\u003eIs this the tractor traction-drive belt?\u003c\/h3\u003e\n\u003cp\u003eNo. This listing is for a mower-deck drive belt. The traction-drive belt that moves the tractor is a separate part.\u003c\/p\u003e\n\u003ch3\u003eCan I order this belt using only the tractor model?\u003c\/h3\u003e\n\u003cp\u003eNo. Confirm the original M169485 or UC39236 number, installed mower deck, belt position, dimensions, and pulley routing before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eNeed a different belt?\u003c\/strong\u003e Browse the full \u003ca href=\"\/collections\/belts\"\u003emower deck belts collection\u003c\/a\u003e.\u003c\/p\u003e","brand":"PTO Direct USA","offers":[{"title":"Default Title","offer_id":53200850452847,"sku":"BELT-295984174613","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/M169485-belt.jpg?v=1783918607","url":"https:\/\/ptodirectusa.com\/products\/deck-belt-m169485","provider":"PTO Direct USA","version":"1.0","type":"link"}