{"product_id":"stihl-wb05-764-6810","title":"STIHL WB05 764 6810 72\" Secondary Deck Belt | OEM RZ Mower","description":"\u003cdiv class=\"product-description stihl-wb05-764-6810-oem-72-inch-secondary-deck-belt\"\u003e\n\u003ch2\u003eSTIHL WB05 764 6810 OEM 72\" Secondary Deck Belt\u003c\/h2\u003e\n\u003cp\u003eThe STIHL WB05 764 6810 Secondary Deck Belt is a genuine OEM STIHL replacement belt for select STIHL RZ zero-turn mowers with 72\" mower decks. This belt is listed in the 72\" Mower Deck - Pulleys, Belts \u0026amp; Idler Arms section for compatible RZ 972 models.\u003c\/p\u003e\n\u003cp\u003eThis belt is described as BELT, B-SEC, 76.40 EL, ARAMID, WRPD. It is used as the secondary deck belt on compatible STIHL 72\" mower deck applications and is designed to match the correct belt profile, belt length, pulley routing, and deck drive requirements.\u003c\/p\u003e\n\u003cp\u003eAlways verify your full STIHL mower model, deck size, original belt part number, belt routing, and parts diagram before ordering. Mower deck belt fitment can vary by deck size, model, and pulley layout.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eSTIHL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eWB05 764 6810\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eProduct Type\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eSecondary Mower Deck Belt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eOEM Description\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eBelt, B-SEC, 76.40 EL, Aramid, WRPD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eDeck Size\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e72\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eCommon Deck Section\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e72\" Mower Deck - Pulleys, Belts \u0026amp; Idler Arms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eCompatible Model Families\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eSTIHL RZ 972 models where specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eOEM \/ Aftermarket\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eGenuine OEM STIHL replacement part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible STIHL Model References\u003c\/h2\u003e\n\u003cp\u003eSTIHL WB05 764 6810 is listed for the following 72\" mower deck applications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTIHL RZ 972.0i - 72\" Mower Deck, Pulleys, Belts \u0026amp; Idler Arms\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 972.0 K - 72\" Mower Deck, Pulleys, Belts \u0026amp; Idler Arms\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 972.0i K - 72\" Mower Deck, Pulleys, Belts \u0026amp; Idler Arms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eImportant: This is the secondary 72\" mower deck belt. Confirm your mower has the correct 72\" deck and that your STIHL parts diagram lists WB05 764 6810 before ordering. Do not order by model family or deck size alone.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine OEM STIHL 72\" secondary mower deck belt\u003c\/li\u003e\n\u003cli\u003ePart number WB05 764 6810\u003c\/li\u003e\n\u003cli\u003eOEM description: Belt, B-SEC, 76.40 EL, Aramid, WRPD\u003c\/li\u003e\n\u003cli\u003eDesigned for select STIHL RZ 972 72\" mower deck applications\u003c\/li\u003e\n\u003cli\u003eUsed in the mower deck pulleys, belts, and idler arms system\u003c\/li\u003e\n\u003cli\u003eHelps restore proper deck drive and blade operation\u003c\/li\u003e\n\u003cli\u003eFactory-correct replacement when listed in your STIHL parts diagram\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Choose an OEM STIHL Deck Belt?\u003c\/h2\u003e\n\u003cp\u003eMower deck belts are critical to blade drive performance. A worn, stretched, cracked, or incorrect belt can cause slipping, poor cut quality, belt noise, overheating, premature wear, or loss of blade operation.\u003c\/p\u003e\n\u003cp\u003eGenuine STIHL mower deck belts are built to match the correct deck routing, pulley profile, belt length, and load requirements for compatible STIHL mower decks. When your parts diagram lists WB05 764 6810, this OEM belt is the correct replacement for that application.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrect OEM fit when specified by STIHL\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible 72\" mower deck drive systems\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper belt tension and blade speed\u003c\/li\u003e\n\u003cli\u003eReduces guesswork compared to universal belts\u003c\/li\u003e\n\u003cli\u003eRecommended for maintaining STIHL mower cutting performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhen to Replace Your Secondary Deck Belt\u003c\/h2\u003e\n\u003cp\u003eReplace the secondary deck belt if it is cracked, glazed, frayed, stretched, slipping, or damaged. A failing belt can reduce blade speed, affect deck drive performance, and create uneven cutting.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBelt is cracked, frayed, glazed, or worn\u003c\/li\u003e\n\u003cli\u003eBelt slips or squeals under load\u003c\/li\u003e\n\u003cli\u003eBlades do not maintain proper speed\u003c\/li\u003e\n\u003cli\u003eCut quality is uneven or inconsistent\u003c\/li\u003e\n\u003cli\u003eBelt jumps off pulleys or does not track correctly\u003c\/li\u003e\n\u003cli\u003eDeck belt was damaged by debris or pulley failure\u003c\/li\u003e\n\u003cli\u003eParts diagram lists STIHL WB05 764 6810 for your mower\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eImportant Fitment Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThis is the secondary 72\" mower deck belt for select STIHL RZ 972 models\u003c\/li\u003e\n\u003cli\u003eFits select RZ 972.0i, RZ 972.0 K, and RZ 972.0i K applications where specified\u003c\/li\u003e\n\u003cli\u003eVerify the original belt part number before ordering\u003c\/li\u003e\n\u003cli\u003eDo not order by deck size alone\u003c\/li\u003e\n\u003cli\u003eConfirm belt routing, pulley layout, and idler arm setup\u003c\/li\u003e\n\u003cli\u003eSome 72\" decks use both a main deck belt and a secondary deck belt\u003c\/li\u003e\n\u003cli\u003eInspect pulleys, idlers, tensioner arms, and spindle bearings when replacing belts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003ePre-Purchase Checklist\u003c\/h2\u003e\n\u003cp\u003eBefore ordering STIHL WB05 764 6810, confirm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour full STIHL mower model number\u003c\/li\u003e\n\u003cli\u003eYour mower has the 72\" mower deck\u003c\/li\u003e\n\u003cli\u003eYour original secondary deck belt part number\u003c\/li\u003e\n\u003cli\u003eYour parts diagram lists WB05 764 6810\u003c\/li\u003e\n\u003cli\u003eYour belt routing matches the 72\" deck diagram\u003c\/li\u003e\n\u003cli\u003eYour pulleys, idlers, and tensioner arm are in serviceable condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation and Service Notes\u003c\/h2\u003e\n\u003cp\u003eDeck belt replacement should be performed with the mower turned off, key removed, parking brake engaged, and all moving parts stopped. Follow the STIHL service instructions and belt routing diagram for your exact mower.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTake a photo of the belt routing before removing the old belt\u003c\/li\u003e\n\u003cli\u003eInspect idler pulleys, spindle pulleys, and tensioner components\u003c\/li\u003e\n\u003cli\u003eReplace worn or noisy pulleys before installing a new belt\u003c\/li\u003e\n\u003cli\u003eMake sure the belt is seated correctly in all pulley grooves\u003c\/li\u003e\n\u003cli\u003eVerify proper tension and deck engagement after installation\u003c\/li\u003e\n\u003cli\u003eRun and recheck belt tracking before returning the mower to service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Belt Note\u003c\/h2\u003e\n\u003cp\u003eSome 72\" STIHL RZ mower deck applications use both a main deck belt and a secondary deck belt. If you are servicing the complete belt system, verify whether your mower also requires the main deck belt listed in your parts diagram.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePart Number \/ Search Terms\u003c\/h2\u003e\n\u003cp\u003eSTIHL WB05 764 6810 may also be searched as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTIHL WB05 764 6810\u003c\/li\u003e\n\u003cli\u003eWB05 764 6810 deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL WB05 764 6810 belt\u003c\/li\u003e\n\u003cli\u003eSTIHL 72\" secondary deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL 72 inch secondary mower deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 972 secondary deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 972.0i secondary deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 972.0 K secondary deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 972.0i K secondary deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL zero turn mower deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL OEM mower belt\u003c\/li\u003e\n\u003cli\u003eSTIHL B-SEC 76.40 EL belt\u003c\/li\u003e\n\u003cli\u003eSTIHL aramid wrapped deck belt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is STIHL WB05 764 6810?\u003c\/summary\u003e\n\u003cp\u003eSTIHL WB05 764 6810 is a genuine OEM 72\" secondary mower deck belt used on select STIHL RZ 972 zero-turn mower deck applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat models does this deck belt fit?\u003c\/summary\u003e\n\u003cp\u003eThis belt is listed for select STIHL RZ 972.0i, RZ 972.0 K, and RZ 972.0i K models with 72\" mower decks where specified in the parts diagram.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this belt for a 72\" deck?\u003c\/summary\u003e\n\u003cp\u003eYes. This belt is listed for compatible STIHL 72\" mower deck applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this the main deck belt?\u003c\/summary\u003e\n\u003cp\u003eNo. This listing is for the secondary 72\" deck belt. Verify your parts diagram if you also need the main deck belt.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if this belt fits my mower?\u003c\/summary\u003e\n\u003cp\u003eVerify your full mower model number, deck size, original belt part number, belt routing, and STIHL parts diagram before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this an OEM STIHL belt?\u003c\/summary\u003e\n\u003cp\u003eYes. This listing is for a genuine OEM STIHL replacement mower deck belt.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cp\u003eP\u0026amp;P Small Engines stocks genuine STIHL mower belts, blades, pulleys, idlers, spindles, filters, oils, accessories, and OEM replacement parts for homeowners and professionals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Stihl","offers":[{"title":"Default Title","offer_id":50390612443329,"sku":"WB05 764 6810","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2803\/7330\/files\/Screenshot2026-07-09083149.png?v=1783603919","url":"https:\/\/pandpsmallengines.com\/products\/stihl-wb05-764-6810","provider":"P \u0026 P Small Engines","version":"1.0","type":"link"}