{"product_id":"at149945-john-deere-hydraulic-pump-new","title":"AT149945 John Deere Hydraulic Pump New","description":"\u003cdiv style=\"font-size: 14pt; line-height: 1.7; color: #222;\"\u003e \u003ch1 style=\"font-size: 22pt; margin-bottom: 6px;\"\u003eAT149945 John Deere Hydraulic Pump\u003c\/h1\u003e \u003cp style=\"margin-top: 0;\"\u003e\u003cem\u003eNew Aftermarket Replacement Hydraulic Pump\u003c\/em\u003e\u003c\/p\u003e \u003cdiv style=\"display: flex; gap: 20px; flex-wrap: wrap; margin: 20px 0;\"\u003e \u003cdiv style=\"flex: 2; min-width: 320px;\"\u003e \u003cp\u003eThe AT149945 hydraulic pump is a replacement hydraulic pump designed for John Deere heavy equipment hydraulic system applications. Hydraulic pumps used in construction and loader equipment are responsible for maintaining hydraulic oil flow and operating pressure throughout the machine during lifting, steering, bucket movement, and auxiliary hydraulic operation.\u003c\/p\u003e \u003cp\u003eThis replacement hydraulic pump is commonly associated with John Deere 644G wheel loader applications and related hydraulic systems. The unit is designed to meet or exceed OEM specifications and help restore dependable hydraulic performance in demanding construction and material handling environments.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv style=\"flex: 1; min-width: 240px; background-color: #eef5d8; border: 1px solid #b9c98a; padding: 15px;\"\u003e \u003ch3 style=\"margin-top: 0;\"\u003eQuick Specifications\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e AT149945\u003cbr\u003e\u003cstrong\u003eEquipment:\u003c\/strong\u003e John Deere 644G\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e New Aftermarket Replacement\u003cbr\u003e\u003cstrong\u003eApproximate Weight:\u003c\/strong\u003e 72 Pounds\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e \u003chr style=\"margin: 24px 0;\"\u003e \u003ch2 style=\"font-size: 18pt;\"\u003eMachine \u0026amp; Hydraulic System Information\u003c\/h2\u003e \u003cp\u003eJohn Deere 644G wheel loaders are commonly used in construction, aggregate handling, material loading, industrial yards, site preparation, and heavy-duty earthmoving operations. Hydraulic systems on these machines are subjected to continuous pressure loads, vibration, heat, contamination exposure, and demanding operating conditions throughout the workday.\u003c\/p\u003e \u003cp\u003eHydraulic pumps used in wheel loader applications commonly support steering systems, lift arms, bucket tilt functions, auxiliary hydraulic circuits, and attachment controls. Maintaining proper hydraulic pressure and flow is important for efficient machine response and dependable loader performance.\u003c\/p\u003e \u003cbr\u003e \u003cdiv style=\"background-color: #f8f8f8; border: 1px solid #d6d6d6; padding: 16px;\"\u003e \u003ch3 style=\"margin-top: 0;\"\u003eProduct Dimensions\u003c\/h3\u003e \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14pt;\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e72 lb\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e7.5 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e7.7 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"padding: 10px;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"padding: 10px;\"\u003e11.3 in\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003cbr\u003e \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 24px 0;\"\u003e \u003cdiv style=\"background-color: #eaf4ff; border: 1px solid #bdd7f2; padding: 15px;\"\u003e \u003ch3 style=\"margin-top: 0;\"\u003eCommon Hydraulic Pump Failure Symptoms\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSlow loader arm movement\u003c\/li\u003e \u003cli\u003eWeak bucket lift power\u003c\/li\u003e \u003cli\u003eErratic steering response\u003c\/li\u003e \u003cli\u003eHydraulic overheating\u003c\/li\u003e \u003cli\u003ePressure loss during operation\u003c\/li\u003e \u003cli\u003eNoisy hydraulic system operation\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003cdiv style=\"background-color: #fff3e3; border: 1px solid #e1c28d; padding: 15px;\"\u003e \u003ch3 style=\"margin-top: 0;\"\u003eTypical Loader Hydraulic Functions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eLift arm hydraulics\u003c\/li\u003e \u003cli\u003eBucket tilt circuits\u003c\/li\u003e \u003cli\u003eSteering hydraulics\u003c\/li\u003e \u003cli\u003eAuxiliary hydraulic operation\u003c\/li\u003e \u003cli\u003eAttachment controls\u003c\/li\u003e \u003cli\u003eMaterial handling functions\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e \u003ch2 style=\"font-size: 18pt;\"\u003eReference Information\u003c\/h2\u003e \u003cp\u003eThe following reference information is associated with this replacement hydraulic pump:\u003c\/p\u003e \u003cdiv style=\"border-left: 5px solid #888; padding-left: 15px; margin: 16px 0;\"\u003e \u003cp\u003e\u003cstrong\u003eOEM Reference:\u003c\/strong\u003e AT149945\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAssociated Equipment:\u003c\/strong\u003e John Deere 644G\u003c\/p\u003e \u003c\/div\u003e \u003ch2 style=\"font-size: 18pt;\"\u003eApplication Verification\u003c\/h2\u003e \u003cp\u003eHydraulic pump configurations can vary depending on machine serial number range, hydraulic system revisions, shaft configuration, mounting dimensions, port orientation, and equipment options. Before ordering, compare the replacement hydraulic pump with the existing hydraulic pump currently installed on the machine.\u003c\/p\u003e \u003cp\u003eReviewing the original OEM part number, machine serial number, and equipment parts catalog can help confirm compatibility for your specific John Deere application.\u003c\/p\u003e \u003cbr\u003e \u003cdiv style=\"background-color: #f7f7f7; border-top: 3px solid #aaa; padding: 16px;\"\u003e \u003cp\u003e\u003cstrong\u003eAdditional Product Information\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThis AT149945 hydraulic pump is a brand new aftermarket replacement unit and is not rebuilt, remanufactured, or previously installed. The pump is intended for hydraulic system repair, wheel loader maintenance, heavy equipment service, and replacement of worn hydraulic components.\u003c\/p\u003e \u003cp\u003eThe AT149945 John Deere replacement hydraulic pump is available for quick shipment from Ace Motor Parts.\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"John Deere Replacement","offers":[{"title":"Default Title","offer_id":48574639374585,"sku":"MTFH-AT149945","price":1655.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9290\/9049\/files\/ace-motor-parts-box__02772__87818.jpg?v=1782154596","url":"https:\/\/acemotorparts.com\/products\/at149945-john-deere-hydraulic-pump-new","provider":"Ace Motor Parts","version":"1.0","type":"link"}