{"product_id":"stihl-wb01-704-2105","title":"STIHL WB01 704 2105 42\" Mower Belt | OEM RZ 142 Deck Belt","description":"\u003cdiv class=\"product-description stihl-wb01-704-2105-oem-42-inch-mower-belt\"\u003e\n\u003ch2\u003eSTIHL WB01 704 2105 OEM 42\" Mower Belt\u003c\/h2\u003e\n\u003cp\u003eThe STIHL WB01 704 2105 Mower Belt is a genuine OEM STIHL replacement belt for select STIHL RZ zero-turn mower deck applications. This belt is listed as BELT, 42\" MOWER and is used on the STIHL RZ 142.0 in the 42\" Mower Deck - Clutch \u0026amp; Support section.\u003c\/p\u003e\n\u003cp\u003eMower deck belts are critical to proper deck engagement and cutting performance. A worn, stretched, cracked, or slipping belt can cause poor blade operation, belt noise, reduced cutting performance, and premature wear to pulleys or related deck components.\u003c\/p\u003e\n\u003cp\u003eAlways verify your full STIHL mower model, deck size, original belt part number, belt routing, clutch setup, and parts diagram before ordering. Belt fitment can vary by deck size, model, and deck drive configuration.\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;\"\u003eWB01 704 2105\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, 42\" Mower\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;\"\u003eMower Deck Belt\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;\"\u003e42\"\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;\"\u003e42\" Mower Deck - Clutch \u0026amp; Support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px;\"\u003eCompatible Model Reference\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eSTIHL RZ 142.0 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 Reference\u003c\/h2\u003e\n\u003cp\u003eSTIHL WB01 704 2105 is listed for the following mower deck application:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTIHL RZ 142.0 - 42\" Mower Deck, Clutch \u0026amp; Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eImportant: Confirm your mower has the correct 42\" deck and that your STIHL parts diagram lists WB01 704 2105 before ordering. Do not order by model 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 42\" mower belt\u003c\/li\u003e\n\u003cli\u003ePart number WB01 704 2105\u003c\/li\u003e\n\u003cli\u003eOEM description: Belt, 42\" Mower\u003c\/li\u003e\n\u003cli\u003eListed for STIHL RZ 142.0 where specified\u003c\/li\u003e\n\u003cli\u003eUsed in the 42\" mower deck clutch and support system\u003c\/li\u003e\n\u003cli\u003eHelps restore proper deck engagement and blade drive 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 Mower Belt?\u003c\/h2\u003e\n\u003cp\u003eA mower belt must match the correct pulley profile, belt length, routing, and deck drive system. Using the wrong belt can cause slipping, poor engagement, belt jumping, premature wear, and reduced cutting performance.\u003c\/p\u003e\n\u003cp\u003eGenuine STIHL mower belts are built to match the deck system they are designed for. When your parts diagram lists WB01 704 2105, 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 42\" STIHL mower deck applications\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper belt tension and deck operation\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 Mower Belt\u003c\/h2\u003e\n\u003cp\u003eReplace the mower belt if it is cracked, glazed, frayed, stretched, slipping, or damaged. A failing belt can affect deck engagement and cutting performance.\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\u003eDeck does not engage properly\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\u003eParts diagram lists STIHL WB01 704 2105 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 a 42\" mower belt for select STIHL RZ 142.0 applications\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, clutch setup, pulley layout, and parts diagram\u003c\/li\u003e\n\u003cli\u003eInspect pulleys, idlers, clutch components, and related hardware 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 WB01 704 2105, confirm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour full STIHL mower model number\u003c\/li\u003e\n\u003cli\u003eYour mower has the 42\" mower deck\u003c\/li\u003e\n\u003cli\u003eYour original belt part number\u003c\/li\u003e\n\u003cli\u003eYour parts diagram lists WB01 704 2105\u003c\/li\u003e\n\u003cli\u003eYour belt routing matches the 42\" deck diagram\u003c\/li\u003e\n\u003cli\u003eYour clutch, pulleys, idlers, and support components 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\u003eBelt 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 clutch, 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 belt 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\u003ePart Number \/ Search Terms\u003c\/h2\u003e\n\u003cp\u003eSTIHL WB01 704 2105 may also be searched as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTIHL WB01 704 2105\u003c\/li\u003e\n\u003cli\u003eWB01 704 2105 belt\u003c\/li\u003e\n\u003cli\u003eWB01 704 2105 mower belt\u003c\/li\u003e\n\u003cli\u003eSTIHL WB01 704 2105 deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL 42\" mower belt\u003c\/li\u003e\n\u003cli\u003eSTIHL 42 inch mower belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 142 belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 142.0 belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 142 mower deck belt\u003c\/li\u003e\n\u003cli\u003eSTIHL RZ 142 clutch belt\u003c\/li\u003e\n\u003cli\u003eSTIHL 42\" deck clutch belt\u003c\/li\u003e\n\u003cli\u003eSTIHL zero turn mower belt\u003c\/li\u003e\n\u003cli\u003eSTIHL OEM mower 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 WB01 704 2105?\u003c\/summary\u003e\n\u003cp\u003eSTIHL WB01 704 2105 is a genuine OEM 42\" mower belt used on select STIHL RZ 142.0 mower deck applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat model does this mower belt fit?\u003c\/summary\u003e\n\u003cp\u003eThis belt is listed for the STIHL RZ 142.0 in the 42\" Mower Deck - Clutch \u0026amp; Support section where specified in the parts diagram.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this belt for a 42\" deck?\u003c\/summary\u003e\n\u003cp\u003eYes. This belt is listed for the 42\" mower deck application on the compatible STIHL RZ 142.0 model.\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, clutch setup, 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 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":50390638887105,"sku":"WB01 704 2105","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2803\/7330\/files\/Screenshot2026-07-09085736.png?v=1783605466","url":"https:\/\/pandpsmallengines.com\/products\/stihl-wb01-704-2105","provider":"P \u0026 P Small Engines","version":"1.0","type":"link"}