{"product_id":"pto-clutch-4165689","title":"4165689 High-Torque PTO Clutch for Bobcat ZT6100 EFI | Select ZT6000 \u0026 ZT7000","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eHD Switch 4165689 electric PTO clutch\u003c\/strong\u003e is a high-torque replacement for select \u003cstrong\u003eBobcat commercial zero-turn mowers\u003c\/strong\u003e using the \u003cstrong\u003e4165689 EFI clutch path\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe clearest documented application is the \u003cstrong\u003eBobcat ZT6100 model 9996013\u003c\/strong\u003e equipped with a \u003cstrong\u003eKawasaki FX850V EFI engine\u003c\/strong\u003e and \u003cstrong\u003e61-inch side-discharge AirFX deck\u003c\/strong\u003e. HD Switch markets this upgraded clutch with a \u003cstrong\u003e260 ft-lb torque rating\u003c\/strong\u003e, compared with the factory 225 ft-lb clutch specification.\u003c\/p\u003e\n\u003cp\u003eThe HD Switch design also features a larger C3 pulley bearing, replaceable bearing construction, solid-steel billet pulley, additional coil capacity, and heat-dissipating clutch construction intended for demanding commercial mowing conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant EFI fitment warning:\u003c\/strong\u003e Bobcat uses a separate \u003cstrong\u003e4165709 clutch on documented non-EFI ZT6000 and related applications\u003c\/strong\u003e. Do not order 4165689 from the ZT6000, ZT6100, or ZT7000 name alone. Match the original clutch number, engine type, mower model number, and complete serial number.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket commercial electric PTO clutch assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e HD Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Replacement Number:\u003c\/strong\u003e Bobcat 4165689\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeller-Rated Torque:\u003c\/strong\u003e 260 ft-lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Bobcat Clutch Path:\u003c\/strong\u003e 225 ft-lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Engine Path:\u003c\/strong\u003e Kawasaki FX850V EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Mower Path:\u003c\/strong\u003e Bobcat ZT6100 EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch Type:\u003c\/strong\u003e electric PTO clutch with integrated brake\u003c\/li\u003e\n\u003cli\u003eLarger C3 pulley-bearing design\u003c\/li\u003e\n\u003cli\u003eReplaceable pulley bearing retained within the billet-pulley assembly\u003c\/li\u003e\n\u003cli\u003eSolid-steel billet pulley construction\u003c\/li\u003e\n\u003cli\u003eAdditional coil capacity for increased holding torque\u003c\/li\u003e\n\u003cli\u003eHeat-dissipating coil construction\u003c\/li\u003e\n\u003cli\u003eDesigned for demanding commercial zero-turn mower service\u003c\/li\u003e\n\u003cli\u003eAftermarket replacement; not manufactured by Bobcat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible Brands \u0026amp; Model Series\u003c\/h2\u003e\n\u003cp\u003eThis clutch should be treated as a \u003cstrong\u003epart-number and EFI-engine-specific replacement\u003c\/strong\u003e rather than a universal clutch for every Bobcat ZT6000, ZT6100, or ZT7000 mower.\u003c\/p\u003e\n\u003ch3\u003eConfirmed Bobcat Parts-Manual Path\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBobcat ZT6100:\u003c\/strong\u003e model 9996013\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Kawasaki FX850V EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePublished Horsepower:\u003c\/strong\u003e 29.5 hp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck:\u003c\/strong\u003e 61-inch side-discharge AirFX cutting deck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumented Serial Range:\u003c\/strong\u003e 999601300203 and above\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOriginal Clutch:\u003c\/strong\u003e Bobcat 4165689, 225 ft-lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Select Applications\u003c\/h3\u003e\n\u003cp\u003eBobcat dealer fitment systems also associate \u003cstrong\u003e4165689\u003c\/strong\u003e with select:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBobcat ZT6000 commercial zero-turn mowers\u003c\/li\u003e\n\u003cli\u003eBobcat ZT6100 commercial zero-turn mowers\u003c\/li\u003e\n\u003cli\u003eBobcat ZT7000 commercial zero-turn mowers\u003c\/li\u003e\n\u003cli\u003eLater or revised Bobcat EFI mower configurations that specifically call for 4165689\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDo not use the additional model-family list as automatic fitment.\u003c\/strong\u003e Confirm that the serial-specific Bobcat parts diagram identifies 4165689.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eEFI and Non-EFI Clutch Routing\u003c\/h2\u003e\n\u003cp\u003eBobcat parts documentation separates the clutch path by engine and electrical configuration:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBobcat 4165689:\u003c\/strong\u003e documented 225 ft-lb clutch used on EFI mower configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBobcat 4165709:\u003c\/strong\u003e separate 250 ft-lb clutch used on documented non-EFI mower configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDocumented non-EFI examples using the separate 4165709 path include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e9996010:\u003c\/strong\u003e ZT6000 with Kawasaki FX801V, 25.5 hp, 52-inch deck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9996011:\u003c\/strong\u003e ZT6000 with Kawasaki FX801V, 25.5 hp, 61-inch deck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9996012:\u003c\/strong\u003e ZT6000 with Kawasaki FX850V carbureted engine, 27 hp, 61-inch deck\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDo not substitute 4165689 and 4165709 based only on torque rating or physical appearance.\u003c\/strong\u003e The mower wiring, soft-start control, clutch dimensions, connector path, pulley alignment, and anti-rotation setup must match.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eReplaces OEM Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBobcat:\u003c\/strong\u003e 4165689\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse the complete seven-digit Bobcat number. Do not order from a partial number or from the mower series alone.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAftermarket Cross-Reference Numbers\u003c\/h2\u003e\n\u003cp\u003eNo independent Warner Electric, Ogura, Xtreme, Stens, or Rotary manufacturer number has been verified for this exact \u003cstrong\u003e4165689\u003c\/strong\u003e clutch configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUse Bobcat 4165689 as the primary match.\u003c\/strong\u003e Do not merge this page with older Bobcat 2721337, 2722016, 4144116, or other visually similar commercial clutch paths.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Symptoms of a Failing PTO Clutch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBlades will not engage when the PTO switch is activated\u003c\/li\u003e\n\u003cli\u003eClutch clicks but the mower deck does not begin turning\u003c\/li\u003e\n\u003cli\u003eBlades engage when cold but stop after the mower heats up\u003c\/li\u003e\n\u003cli\u003eClutch slips during heavy, wet, or high-volume cutting\u003c\/li\u003e\n\u003cli\u003eDeck belt squeals, smokes, or overheats during engagement\u003c\/li\u003e\n\u003cli\u003eBurning smell near the engine crankshaft or clutch\u003c\/li\u003e\n\u003cli\u003eGrinding, rumbling, or excessive pulley-bearing noise\u003c\/li\u003e\n\u003cli\u003eIntermittent engagement caused by a heat-damaged coil\u003c\/li\u003e\n\u003cli\u003eVisible heat damage around the clutch connector or coil housing\u003c\/li\u003e\n\u003cli\u003eExcessive movement at the pulley bearing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSimilar symptoms may be caused by the soft-start module, PTO switch, lower wiring harness, charging system, fuse, ground connection, deck belt, spindle bearings, or idler system. Diagnose the complete PTO and deck-drive system before replacing the clutch.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 complete aftermarket HD Switch electric PTO clutch assembly\u003c\/li\u003e\n\u003cli\u003eHigh-torque electromagnetic coil and integrated brake assembly\u003c\/li\u003e\n\u003cli\u003eSolid-steel billet pulley\u003c\/li\u003e\n\u003cli\u003eLarger replaceable C3 pulley bearing\u003c\/li\u003e\n\u003cli\u003eElectrical connection as represented in the seller’s product photos\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot included unless specifically shown or stated by the eBay seller:\u003c\/strong\u003e crankshaft mounting bolt, washer, key, spacer, Bobcat 4169106 clutch pin, Bobcat 4174466 clutch-stop bracket, soft-start module, wiring harness, PTO switch, fuse, or mower-specific installation hardware.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Consider This HD Switch PTO Clutch?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned around the Bobcat 4165689 EFI clutch path\u003c\/li\u003e\n\u003cli\u003e260 ft-lb seller-rated torque upgrade\u003c\/li\u003e\n\u003cli\u003eHigher published holding torque than the factory 225 ft-lb clutch path\u003c\/li\u003e\n\u003cli\u003eLarger C3 pulley bearing intended for demanding commercial operation\u003c\/li\u003e\n\u003cli\u003eReplaceable pulley-bearing design\u003c\/li\u003e\n\u003cli\u003eSolid-steel billet pulley construction\u003c\/li\u003e\n\u003cli\u003eHeat-dissipating clutch-coil design\u003c\/li\u003e\n\u003cli\u003eSuitable for buyers specifically searching for a 4165689 replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eThird-Party Purchase Notice\u003c\/h2\u003e\n\u003cp\u003eThis product is not purchased through the PTO Direct USA checkout. Selecting the eBay button takes you to an independent third-party seller.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe eBay seller controls pricing and inventory.\u003c\/li\u003e\n\u003cli\u003eThe eBay seller processes payment and fulfillment.\u003c\/li\u003e\n\u003cli\u003eThe eBay seller controls shipping, returns, and warranty support.\u003c\/li\u003e\n\u003cli\u003ePTO Direct USA does not guarantee continuing availability.\u003c\/li\u003e\n\u003cli\u003eReview the seller’s current listing terms and all product photos before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eNeed Help Confirming Fitment?\u003c\/h2\u003e\n\u003cp\u003eSend PTO Direct USA the complete Bobcat model number, complete serial number, deck size, engine model, EFI or non-EFI configuration, original clutch number, and clear photos of the clutch connector, pulley, anti-rotation setup, and mower identification plate.\u003c\/p\u003e\n\u003cp\u003eFor ZT6000 applications, specifically confirm whether the mower uses the \u003cstrong\u003e4165689 EFI clutch path\u003c\/strong\u003e or the separate \u003cstrong\u003e4165709 non-EFI clutch path\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat does this HD Switch PTO clutch replace?\u003c\/h3\u003e\n\u003cp\u003eThis clutch is marketed as a high-torque aftermarket replacement for \u003cstrong\u003eBobcat 4165689\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs this a complete PTO clutch?\u003c\/h3\u003e\n\u003cp\u003eYes. The seller represents this product as a complete assembled electric PTO clutch with an integrated brake, pulley, coil, and pulley bearing. Mower-side mounting hardware and electrical-control components may not be included.\u003c\/p\u003e\n\u003ch3\u003eWhat is the most clearly documented Bobcat application?\u003c\/h3\u003e\n\u003cp\u003eThe clearest parts-manual application is the \u003cstrong\u003eBobcat ZT6100 model 9996013\u003c\/strong\u003e with the \u003cstrong\u003eKawasaki FX850V EFI engine\u003c\/strong\u003e, \u003cstrong\u003e61-inch deck\u003c\/strong\u003e, and serial number \u003cstrong\u003e999601300203 or higher\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes Bobcat 4165689 fit the ZT6100?\u003c\/h3\u003e\n\u003cp\u003eYes, 4165689 is documented on the ZT6100 EFI path. Confirm the complete model and serial number because production revisions may apply.\u003c\/p\u003e\n\u003ch3\u003eDoes Bobcat 4165689 fit every ZT6000?\u003c\/h3\u003e\n\u003cp\u003eNo. Documented non-EFI ZT6000 models use the separate \u003cstrong\u003e4165709\u003c\/strong\u003e clutch. Use 4165689 on a ZT6000 only when the serial-specific Bobcat parts lookup identifies 4165689.\u003c\/p\u003e\n\u003ch3\u003eDoes this fit a ZT6000 with a Kawasaki FX801V engine?\u003c\/h3\u003e\n\u003cp\u003eDo not assume that it does. The documented FX801V ZT6000 configurations in the referenced parts manual use Bobcat 4165709 rather than 4165689.\u003c\/p\u003e\n\u003ch3\u003eDoes this fit a ZT6000 with a carbureted FX850V engine?\u003c\/h3\u003e\n\u003cp\u003eDo not assume that it does. The documented 27 hp carbureted FX850V ZT6000 path uses Bobcat 4165709. The 4165689 path is tied to the EFI configuration.\u003c\/p\u003e\n\u003ch3\u003eDoes Bobcat 4165689 fit the ZT7000?\u003c\/h3\u003e\n\u003cp\u003eDealer fitment systems associate 4165689 with select ZT7000 applications. Confirm the engine configuration, model number, complete serial number, and original clutch number before ordering.\u003c\/p\u003e\n\u003ch3\u003eIs Bobcat 4165689 the same as 4165709?\u003c\/h3\u003e\n\u003cp\u003eNo. Bobcat documentation lists them as separate clutches. The 4165689 is the documented 225 ft-lb EFI path, while 4165709 is the documented 250 ft-lb non-EFI path.\u003c\/p\u003e\n\u003ch3\u003eWhy is the HD Switch clutch rated at 260 ft-lbs?\u003c\/h3\u003e\n\u003cp\u003eHD Switch markets this replacement as a higher-torque upgrade using additional coil capacity. The factory Bobcat 4165689 clutch path is rated at 225 ft-lbs, while the HD Switch replacement is seller-rated at 260 ft-lbs.\u003c\/p\u003e\n\u003ch3\u003eIs the soft-start control included?\u003c\/h3\u003e\n\u003cp\u003eNo soft-start module should be assumed to be included. Bobcat documents the 4169459 soft-start clutch control as a separate mower component.\u003c\/p\u003e\n\u003ch3\u003eCan a failed soft-start module look like a failed PTO clutch?\u003c\/h3\u003e\n\u003cp\u003eYes. A failed soft-start module, PTO switch, fuse, wiring harness, charging system, connector, or ground can prevent the clutch from engaging. Diagnose the complete circuit before replacing the clutch.\u003c\/p\u003e\n\u003ch3\u003eCan I order this clutch by appearance?\u003c\/h3\u003e\n\u003cp\u003eNo. Match Bobcat 4165689 first, then confirm the EFI engine path, complete model and serial number, crankshaft bore, pulley geometry, connector, belt alignment, soft-start system, and anti-rotation setup.\u003c\/p\u003e\n\u003ch3\u003eWho handles shipping, returns, and warranty?\u003c\/h3\u003e\n\u003cp\u003eThe linked eBay seller handles payment, shipping, returns, and any seller-provided warranty. Review the current eBay listing terms before purchasing.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Guides \u0026amp; PTO Clutch Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pto-clutch-2721337\"\u003e2721337 PTO Clutch for Bobcat ProCat and Predator Pro Mowers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pto-clutch-2722016\"\u003e2722016 PTO Clutch for Bobcat, Bunton, and Woods Mowers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pto-clutches\"\u003eBrowse the Full Electric PTO Clutch Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HD Switch","offers":[{"title":"Default Title","offer_id":53243068973423,"sku":"PTO-4165689","price":399.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/4165689-pto-clutch.jpg?v=1785034784","url":"https:\/\/ptodirectusa.com\/products\/pto-clutch-4165689","provider":"PTO Direct USA","version":"1.0","type":"link"}