{"product_id":"skid-steer-stump-grinder-18-35-gpm","title":"Skid Steer Stump Grinder (18–35 GPM, Case Drain)","description":"\u003ch2\u003eWill this fit your machine?\u003c\/h2\u003e\n\u003cp\u003eYou need \u003cstrong\u003e18 to 35 GPM\u003c\/strong\u003e and a \u003cstrong\u003ecase drain line\u003c\/strong\u003e. GPM means gallons per minute — how much hydraulic fluid your machine can push out. A case drain is an extra hydraulic line that sends leaked fluid straight back to the tank. Stump grinders get mismatched to machines more than anything else we sell. This range crosses both standard flow and high flow, and the brochure words alone won't tell you which side you're on.\u003c\/p\u003e\n\n\u003ch3\u003eThe trap that costs people a motor\u003c\/h3\u003e\n\u003cp\u003eOne manufacturer sells two different stump grinders and labels \u003cstrong\u003eboth\u003c\/strong\u003e of them \"High Flow.\" One needs 26.9 GPM. The other needs 45 GPM. Same two words on the label, an 18 GPM difference underneath them.\u003c\/p\u003e\n\u003cp\u003eWe checked 15 machines. \"High flow\" meant anywhere from \u003cstrong\u003e26.9 to 45 GPM\u003c\/strong\u003e, across six different labeling systems. That's why we always quote you a number, not a category name.\u003c\/p\u003e\n\n\u003ch3\u003eCheck your machine\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBobcat T740:\u003c\/strong\u003e 23 GPM standard flow — yes. 30.5 GPM high flow — yes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBobcat T770, high flow (36.6 GPM):\u003c\/strong\u003e Careful — that's 1.6 GPM over our 35 GPM ceiling. Run it in standard-flow mode, or email us and we'll quote you the high-flow model instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKubota SVL75-3, standard flow (19.2 GPM):\u003c\/strong\u003e Yes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAT 259D3, standard flow (20.0 GPM):\u003c\/strong\u003e Yes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to check for a case drain port\u003c\/h3\u003e\n\u003cp\u003eLook at the hydraulic couplers on your loader arm. The two main lines — the ones with flat-faced fittings — are your supply and return. A case drain is a third, smaller line that runs straight back to the tank instead of through those two. If you only see two ports, you don't have one. It has to come from the machine's hydraulics; you can't bolt one on afterward.\u003c\/p\u003e\n\n\u003ch3\u003eCase drain is mandatory here\u003c\/h3\u003e\n\u003cp\u003eThis grinder runs a \u003cstrong\u003episton motor\u003c\/strong\u003e, and a piston motor must have a case drain line — it is not optional. Whether an attachment needs a case drain depends on the type of motor inside it, not on what kind of attachment it is. Run a piston motor with no case drain and trapped pressure destroys the seals, usually within a season. \u003cstrong\u003eIf your machine has no case drain port, tell us before you order.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same logic runs the other way on flow, too. Spinning a piston motor faster than it's rated for doesn't grind stumps any quicker — it just builds heat and wears out bearings and seals well before their time. That's why the T770 above gets run in standard-flow mode instead of full high-flow.\u003c\/p\u003e\n\n\u003ch3\u003eDon't buy this one if\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou've got one stump to grind.\u003c\/strong\u003e Rent one instead. This attachment pays for itself over dozens of stumps, not one afternoon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour machine's flow is under 18 GPM.\u003c\/strong\u003e It will still turn, but slowly, and you'll cook the motor doing it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou're grinding in rocky ground.\u003c\/strong\u003e The teeth wear out and need replacing, and rock wears them three times faster. Budget for spare teeth from day one.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen the teeth wear out\u003c\/h3\u003e\n\u003cp\u003eWe sell replacement carbide teeth separately, sized to fit this grinder. If you're working rocky ground, order a spare set with your first purchase — losing a day to a parts order costs more than the teeth do.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRequired flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18–35 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase drain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eRequired\u003c\/strong\u003e — piston motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~1,000 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMount\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUniversal Skid Steer (SSL) quick-attach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTeeth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarbide, replaceable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTotal cost, before you check out\u003c\/h3\u003e\n\u003cp\u003eShipping is free, built into the price above. This unit weighs under 1,500 lb, so \u003cstrong\u003eliftgate delivery is available\u003c\/strong\u003e. A liftgate lowers your delivery to the ground, so you won't need a forklift.\u003c\/p\u003e\n\n\u003cp\u003eSend us your machine's make, model, and flow number. We'll confirm it fits before you spend anything.\u003c\/p\u003e","brand":"Right Fit Attachments","offers":[{"title":"Standard","offer_id":50056044511446,"sku":"RFA-SG-STD","price":6420.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/8937\/4934\/files\/pexels-photo-7763704.jpg?v=1786341770","url":"https:\/\/rightfitattachments.com\/products\/skid-steer-stump-grinder-18-35-gpm","provider":"Rightfit Attachments","version":"1.0","type":"link"}