{"product_id":"cat-4i1023-4i-1023-hydraulic-gear-pump-320-312-315","title":"CAT 4I1023 (4I-1023) Hydraulic Gear Pump for Caterpillar Excavators | Fits 320 312 315 317 318 311","description":"\u003cdiv style=\"margin: 15px 0 25px 0; padding: 15px; background-color: #fcfcfc; border: 1px dashed #e0e0e0; border-radius: 6px; text-align: center;\"\u003e\n  \u003cp style=\"margin: 0 0 10px 0; font-weight: bold; font-size: 15px; color: #333;\"\u003eIn Stock \u0026amp; Ready for Global Express Dispatch\u003c\/p\u003e\n  \u003ca href=\"\/pages\/contact\" style=\"background-color: #ffcc00; color: #000; padding: 12px 28px; text-decoration: none; font-weight: bold; border-radius: 4px; display: inline-block; font-size: 16px; box-shadow: 0 2px 4px rgba(0,0,0,0.1);\"\u003eRequest a Quick Quote\u003c\/a\u003e\n  \u003cp style=\"margin: 10px 0 0 0; font-size: 13px; color: #666;\"\u003e\n    ✓ Premium Caterpillar Quality Spec  |  ✓ 100% Direct Fit  |  ✓ Fast Global Shipping\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003ePremium hydraulic gear pump designed as a direct OEM-compatible replacement for Caterpillar (CAT) excavators, ensuring precise fluid flow, system pressure stability, and dependable power transmission. Engineered to deliver optimal volumetric efficiency, low noise performance, and exceptional service life in demanding construction and earthmoving applications.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 4I1023 \/ 4I-1023\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Fit OEM Replacement:\u003c\/strong\u003e Form, fit, mounting flange, and port configurations match original Caterpillar engineering specifications perfectly without requiring any modifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Manufactured with high-strength cast iron body and precision-ground steel gears to withstand severe hydraulic pressures and continuous high-load operations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Hydraulic Efficiency:\u003c\/strong\u003e Precision internal tolerances minimize fluid bypass and heat generation, maintaining steady hydraulic response for smooth excavator control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2; border-bottom: 2px solid #dddddd;\"\u003e\n      \u003cth style=\"padding: 10px; text-align: left; border: 1px solid #dddddd;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; text-align: left; border: 1px solid #dddddd;\"\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e4I1023 \/ 4I-1023\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd; background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eHeavy-Duty Hydraulic Gear Pump\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eBrand Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eCaterpillar (CAT)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd; background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003ePilot \u0026amp; Auxiliary Hydraulic System\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eHigh-Strength Precision Cast Body \u0026amp; Alloy Steel Gears\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd; background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e12 Months Warranty\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCompatible Models \u0026amp; Equipment\u003c\/h2\u003e\n\u003cp\u003eThis premium hydraulic gear pump is precision-engineered to fit the following Caterpillar excavators:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e311 Series:\u003c\/strong\u003e Caterpillar 311-A \/ 311B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e312 Series:\u003c\/strong\u003e Caterpillar 312-A \/ 312B \/ 312B L\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e315 Series:\u003c\/strong\u003e Caterpillar 315-A \/ 315-A L \/ 315B \/ 315B L \/ 315B FM L\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e317 Series:\u003c\/strong\u003e Caterpillar 317-A \/ 317-A N \/ 317 N \/ 317B L \/ 317B LN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e318 Series:\u003c\/strong\u003e Caterpillar 318B \/ 318B N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e320 Series:\u003c\/strong\u003e Caterpillar 320-A \/ 320-A L \/ 320 L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot \u0026amp; Auxiliary Hydraulic Power:\u003c\/strong\u003e Delivers continuous oil supply to excavator pilot control circuits, auxiliary lines, and steering\/charging units.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydraulic System Restoration:\u003c\/strong\u003e Eliminates slow joystick response, pressure drop, and sluggish attachment movement by restoring full hydraulic pressure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSevere Operation Reliability:\u003c\/strong\u003e Built to withstand harsh working environments in earthmoving, trenching, demolition, and forestry applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose Our Aftermarket CAT Hydraulic Gear Pumps?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGuaranteed OEM Quality:\u003c\/strong\u003e Manufactured under strict ISO 9001 standards to meet or exceed original Caterpillar specifications for fit and operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCost-Effective Solution:\u003c\/strong\u003e Get maximum hydraulic efficiency and factory-grade performance at a fraction of the OEM dealer price.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReady to Ship:\u003c\/strong\u003e Fully stocked in our warehouse for fast global air freight delivery to get your machinery back to work quickly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry-Leading Support:\u003c\/strong\u003e Backed by a full 12-month replacement warranty and dedicated heavy equipment hydraulic specialists.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Is this gear pump a genuine Caterpillar part?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This is a premium-grade, OEM-compatible aftermarket replacement pump. It is built to exact Caterpillar dimensions and pressure ratings, serving as a direct drop-in replacement for part number 4I-1023 (4I1023).\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: What is covered under the 12-month warranty?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Our 12-month warranty covers all manufacturing defects, structural material failures, and mechanical faults under standard hydraulic operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Should I flush the hydraulic system before installing this new pump?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, we highly recommend flushing the hydraulic lines, replacing fluid filters, and filling the system with fresh hydraulic oil prior to startup to protect precision internal components.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: How long does international shipping take?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e In-stock orders are processed and dispatched within 3–5 business days. Express shipping and international air freight options are available for urgent machine repair needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003cdiv style=\"text-align: center; background-color: #f4f6f8; padding: 15px; border-radius: 6px; margin: 25px 0;\"\u003e\n  \u003cspan style=\"font-size: 16px; color: #333;\"\u003eExplore our full range of heavy-duty hydraulic pumps:\u003c\/span\u003e \n  \u003cbr style=\"margin-bottom: 5px;\"\u003e\n  \u003ca href=\"\/collections\/gear-pump-series\" style=\"color: #0056b3; font-weight: bold; text-decoration: underline; font-size: 17px;\"\u003e\n    View All Hydraulic Gear Pumps »\n  \u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align: center; margin-top: 30px;\"\u003eNeed a Quote for CAT 4I1023?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eContact us today for the latest price, wholesale inquiries, and express global delivery options.\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-bottom: 30px;\"\u003e\n  \u003ca href=\"\/pages\/contact\" style=\"background-color: #ffcc00; color: #000; padding: 12px 25px; text-decoration: none; font-weight: bold; border-radius: 4px; display: inline-block;\"\u003eRequest a Quote\u003c\/a\u003e\n\u003c\/p\u003e","brand":"Caterpillar","offers":[{"title":"Default Title","offer_id":47794332795036,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/7385\/0524\/files\/caterpillar-4i-1023-hydraulic-gear-pump-320-1.jpg?v=1790945426","url":"https:\/\/hepumpstore.com\/products\/cat-4i1023-4i-1023-hydraulic-gear-pump-320-312-315","provider":"HEPUMP","version":"1.0","type":"link"}