{"product_id":"40-hp-rotary-cutter-gearbox-1-3-8-smooth-input-shaft-1-1-47","title":"40 HP Rotary Cutter Gearbox 1-3\/8 Smooth Input Shaft 1:1.47","description":"\u003cp\u003eThis 40 HP Rotary Cutter Gearbox is designed for agricultural rotary cutter and mowing applications. \u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe 40 HP Rotary Cutter Gearbox 1-3\/8 Smooth Input Shaft 1:1.47 is an essential power transmission component designed to deliver reliable performance for your outdoor mowing equipment. This gearbox effectively transfers power from the tractor PTO to the cutting blades, providing the necessary torque multiplication to handle thick brush and tall grass. Built with a durable cast iron housing, it ensures long-lasting gear and bearing protection under rugged field conditions.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProvides 40 HP power capacity for dependable rotary mower performance\u003c\/li\u003e\n\u003cli\u003eFeatures a 1-3\/8 inch smooth input shaft for standard implement connections\u003c\/li\u003e\n\u003cli\u003eEngineered with a 1:1.47 speed up ratio to maintain efficient blade speed\u003c\/li\u003e\n\u003cli\u003eSealed cast iron housing protects internal bevel gears against dirt and debris\u003c\/li\u003e\n\u003cli\u003eStandard 4-bolt mounting pattern allows for simple installation on compatible decks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003efor Howse 350\u003c\/li\u003e\n\u003cli\u003efor Howse 400\u003c\/li\u003e\n\u003cli\u003efor King Kutter Mowers\u003c\/li\u003e\n\u003cli\u003efor Kodiak KDK03-0012\u003c\/li\u003e\n\u003cli\u003efor Mohawk Brave 4ft\u003c\/li\u003e\n\u003cli\u003efor Woods XT148\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacing worn or damaged gearboxes on 4ft, 5ft, and 6ft rotary cutters\u003c\/li\u003e\n\u003cli\u003eRestoring rotational speed and torque delivery to mower cutting assemblies\u003c\/li\u003e\n\u003cli\u003eUpgrading farm machinery components for routine pasture maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Rotary Cutter Gearbox\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 40 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 1:1.47\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e 1-3\/8 Inch Smooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Shaft:\u003c\/strong\u003e 1-1\/2 Inch 12-Spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Pattern:\u003c\/strong\u003e 4-3\/4 Inch Spaced Square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid Requirement:\u003c\/strong\u003e Requires 16 oz of 80-90W Gear Lube (Shipped Dry)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How can I verify if this gearbox fits my rotary cutter deck? \u003cstrong\u003eA:\u003c\/strong\u003e Check your existing unit's mounting pattern; this gearbox uses a standard square pattern with holes spaced 4-3\/4 inches apart on center.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this replacement component arrive ready for immediate operation? \u003cstrong\u003eA:\u003c\/strong\u003e No, gearboxes are shipped dry for safety during transit and require 16 ounces of 80-90W gear oil before initial deployment.\u003c\/p\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.\u003c\/em\u003e","brand":"Northline Parts","offers":[{"title":"Default Title","offer_id":43022683177031,"sku":"ZZ1P00438","price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/7123\/5399\/files\/116690128831-0.jpg?v=1785402422","url":"https:\/\/www.northlineparts.com\/products\/40-hp-rotary-cutter-gearbox-1-3-8-smooth-input-shaft-1-1-47","provider":"Northline Parts","version":"1.0","type":"link"}