{"product_id":"deck-belt-m158131","title":"M158131 \/ M154296 Deck Belt for John Deere Z425, Z435 \u0026 Z445","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eaftermarket mower deck belt\u003c\/strong\u003e replaces \u003cstrong\u003eJohn Deere M158131 and M154296\u003c\/strong\u003e on select \u003cstrong\u003eJohn Deere Z425, Z435, and Z445 EZtrak zero-turn mowers\u003c\/strong\u003e equipped with the confirmed 48-inch or 54-inch mower deck path.\u003c\/p\u003e\n\u003cp\u003eDo not order by the Z425, Z435, or Z445 model name alone. These mower families were available with different deck sizes and production configurations that may use another belt.\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 M158131\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces Earlier John Deere Number:\u003c\/strong\u003e M154296\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 152-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Type:\u003c\/strong\u003e mower deck drive V-belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e polyester-reinforced belt construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1 belt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurement note:\u003c\/strong\u003e Belt manufacturers may publish nominal, outside, or effective-length measurements differently. Match the original \u003cstrong\u003eM158131 or M154296\u003c\/strong\u003e part number first rather than ordering from a tape measurement alone.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible John Deere Models \u0026amp; Deck Paths\u003c\/h2\u003e\n\u003cp\u003eThis belt fits the following confirmed John Deere EZtrak mower paths:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere Z425 with 48-inch deck:\u003c\/strong\u003e serial number 100001 and higher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere Z425 with 54-inch deck:\u003c\/strong\u003e confirmed M158131 mower-belt path\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere Z435 with 48-inch deck:\u003c\/strong\u003e confirmed M158131 mower-belt path\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere Z435 with 54-inch deck:\u003c\/strong\u003e confirmed M158131 mower-belt path\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere Z445 with 48-inch deck:\u003c\/strong\u003e serial number 100001 and higher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere Z445 with 54-inch deck:\u003c\/strong\u003e confirmed M158131 mower-belt path\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment note:\u003c\/strong\u003e Earlier Z425 and Z445 48-inch deck applications through serial number 100000 use the separate \u003ca href=\"\/products\/deck-belt-m158130\"\u003e\u003cstrong\u003eM158130 mower deck belt path\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eReplaces OEM Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eJohn Deere M158131\u003c\/li\u003e\n\u003cli\u003eJohn Deere M154296\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eAftermarket Cross-Reference Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStens:\u003c\/strong\u003e 265-567\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8TEN:\u003c\/strong\u003e 810-CBL2218T\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eImportant Fitment Check\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMatch the original mower deck belt number before ordering.\u003c\/strong\u003e This replacement is intended for mower deck configurations calling for \u003cstrong\u003eJohn Deere M158131 or M154296\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDo not order from deck width alone. A 48-inch Z425 or Z445 may use either \u003cstrong\u003eM158130 or M158131\u003c\/strong\u003e depending on the mower serial number.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Symptoms of a Worn Deck Belt\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBlades turn slowly or lose speed in thick grass\u003c\/li\u003e\n\u003cli\u003eDeck belt squeals, slips, or produces a burning smell\u003c\/li\u003e\n\u003cli\u003eBelt repeatedly comes off the mower deck\u003c\/li\u003e\n\u003cli\u003eVisible cracking, glazing, fraying, or missing belt material\u003c\/li\u003e\n\u003cli\u003eUneven belt tracking across the spindle or idler pulleys\u003c\/li\u003e\n\u003cli\u003eBlades engage but stop when the mower is placed under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA damaged pulley, seized spindle bearing, weak tension spring, or incorrect belt routing can quickly damage a replacement belt. Inspect the complete deck-drive system before installation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 aftermarket mower deck drive belt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eDoes M158131 replace M154296?\u003c\/h3\u003e\n\u003cp\u003eYes. \u003cstrong\u003eJohn Deere M158131 is the current replacement for M154296\u003c\/strong\u003e on compatible mower deck applications.\u003c\/p\u003e\n\u003ch3\u003eWhat size is the replacement belt?\u003c\/h3\u003e\n\u003cp\u003eThis aftermarket belt at approximately \u003cstrong\u003e1\/2 inch wide and 152-1\/4 inches long\u003c\/strong\u003e. Belt dimensions can vary depending on whether nominal, outside, or effective length is being published, so match the OEM number first.\u003c\/p\u003e\n\u003ch3\u003eDoes M158131 fit every John Deere Z425?\u003c\/h3\u003e\n\u003cp\u003eNo. The 54-inch Z425 deck uses the M158131 path. For 48-inch decks, serial number \u003cstrong\u003e100001 and higher\u003c\/strong\u003e uses M158131, while earlier 48-inch applications use \u003ca href=\"\/products\/deck-belt-m158130\"\u003e\u003cstrong\u003eM158130\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes M158131 fit every John Deere Z445?\u003c\/h3\u003e\n\u003cp\u003eNo. The 54-inch Z445 deck uses the M158131 path. For 48-inch decks, serial number \u003cstrong\u003e100001 and higher\u003c\/strong\u003e uses M158131, while earlier 48-inch applications use M158130.\u003c\/p\u003e\n\u003ch3\u003eDoes this belt fit the John Deere Z435?\u003c\/h3\u003e\n\u003cp\u003eYes. M158131 is a confirmed mower deck belt path for John Deere Z435 mowers equipped with compatible 48-inch or 54-inch mower decks.\u003c\/p\u003e\n\u003ch3\u003eCan I order this belt by deck width alone?\u003c\/h3\u003e\n\u003cp\u003eNo. Match the mower model, deck size, serial number, and original belt number. Different John Deere decks with the same cutting width may use different belt lengths and routing.\u003c\/p\u003e\n\u003ch3\u003eWhy does the replacement measurement differ slightly from the OEM measurement?\u003c\/h3\u003e\n\u003cp\u003eBelt suppliers may publish nominal width, effective length, or outside circumference. Small published differences are common. The primary fitment check is the confirmed \u003cstrong\u003eM158131 or M154296\u003c\/strong\u003e replacement number.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated John Deere Deck Parts\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/deck-belt-m158130\"\u003e\u003cstrong\u003eM158130 belt for earlier Z425 and Z445 48-inch decks\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/deck-kit-john-deere-z425-54\"\u003e\u003cstrong\u003e54-inch deck rebuild kit for John Deere Z425, Z435, and Z445\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/john-deere-quick-reference\"\u003e\u003cstrong\u003eJohn Deere Model Reference Quick Lookup Library\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/belts\"\u003e\u003cstrong\u003eBrowse mower deck belts\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eNeed Help Confirming Fitment?\u003c\/h2\u003e\n\u003cp\u003eStill not sure which deck belt fits your mower? \u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eContact us for fitment help\u003c\/strong\u003e\u003c\/a\u003e and send a clear picture of the mower identification tag or the original belt part number.\u003c\/p\u003e","brand":"PTO Direct USA","offers":[{"title":"Default Title","offer_id":53224629633391,"sku":"BELT-284182309220","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/M158131-belt.jpg?v=1784429710","url":"https:\/\/ptodirectusa.com\/products\/deck-belt-m158131","provider":"PTO Direct USA","version":"1.0","type":"link"}