{"product_id":"cat-12g-160g-140g-piston-pump-1243027-124-3027","title":"CAT 1243027 (124-3027) Piston Pump | Fits 12G 140G 160G Motor Grader","description":"\u003ch2\u003eCAT 1243027 (124-3027) Piston Pump | Fits 12G 140G 160G Motor Grader\u003c\/h2\u003e\n\u003cp\u003ePremium hydraulic piston pump designed as a direct OEM-compatible replacement for Caterpillar 12G, 140G, and 160G motor graders. Built to deliver consistent hydraulic power for blade control, steering, and attachment operation in demanding road maintenance, grading, and earthmoving applications.\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1243027 \/ 124-3027\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Fit:\u003c\/strong\u003e No modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Performance:\u003c\/strong\u003e Meets or exceeds original Caterpillar specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Precision-engineered for long service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Application:\u003c\/strong\u003e Suitable for road maintenance, grading, and earthmoving projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1243027 \/ 124-3027\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable Displacement Piston Pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand Compatibility:\u003c\/strong\u003e Caterpillar (CAT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Hydraulic System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 Months\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatible Models\u003c\/h3\u003e\n\u003cp\u003eThis piston pump fits the following Caterpillar motor grader models:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCaterpillar 12G Motor Grader\u003c\/li\u003e\n\u003cli\u003eCaterpillar 140G Motor Grader\u003c\/li\u003e\n\u003cli\u003eCaterpillar 160G Motor Grader\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMain Hydraulic Pump Replacement\u003c\/li\u003e\n\u003cli\u003eBlade Lift, Angle, and Circle Control Systems\u003c\/li\u003e\n\u003cli\u003eSteering and Ripper Circuits\u003c\/li\u003e\n\u003cli\u003eRoad Maintenance, Grading, and Earthmoving Projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose This Pump?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eQuality Guaranteed - Manufactured to meet OEM standards\u003c\/li\u003e\n\u003cli\u003eReady to Ship - In stock and available for immediate dispatch\u003c\/li\u003e\n\u003cli\u003eExpert Support - Technical assistance available\u003c\/li\u003e\n\u003cli\u003eCompetitive Pricing - Cost-effective alternative to dealer parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the symptoms of a failing hydraulic piston pump on CAT 12G, 140G, or 160G motor graders?\u003c\/strong\u003e\u003cbr\u003eA: Common signs include slow or weak blade lift and tilt response, the blade hesitating or failing to hold grade position, hydraulic oil overheating during extended grading operations, whining or knocking noise from the pump area, and visible hydraulic fluid leakage. The 12G, 140G, and 160G are older-series motor graders still widely used in road maintenance — pump failure causes loss of blade control accuracy and reduced grading efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1243027 fit all three motor grader models?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the 1243027 (124-3027) is designed as a direct OEM-compatible replacement for the CAT 12G, 140G, and 160G motor graders. These models share the same pump mounting and hydraulic system architecture. Contact us with your motor grader serial number to confirm exact compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What hydraulic functions does this pump support on a motor grader?\u003c\/strong\u003e\u003cbr\u003eA: As the main hydraulic pump, it supplies flow to the blade lift and tilt circuits, circle drive, articulation (steering), and ripper functions. Precision grading requires consistent hydraulic flow — a failing pump causes the blade to drift, hesitate, or lose position accuracy, directly affecting grade quality. The 12G\/140G\/160G series are widely used in road maintenance, where grade accuracy is critical for road safety and performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I flush the hydraulic system when replacing this pump on an older motor grader?\u003c\/strong\u003e\u003cbr\u003eA: Always, and with extra attention. Older motor graders like the 12G, 140G, and 160G may have accumulated more system contamination over their service life. Metal particles and contaminants from the old pump, combined with years of environmental exposure, can destroy the new pump within hours. Drain and replace all hydraulic oil, flush the system thoroughly, replace all filters, and refill with fresh Cat HYDO Advanced hydraulic oil.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of hydraulic oil is recommended for the 12G, 140G, and 160G motor graders?\u003c\/strong\u003e\u003cbr\u003eA: Caterpillar specifies Cat HYDO Advanced 10W or 30W depending on ambient operating temperature. Older motor graders in road construction and maintenance applications should use Cat-approved fluids to ensure long pump life and maintain grading accuracy. Using non-approved fluids can cause accelerated wear and void the warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this is the correct pump for my motor grader?\u003c\/strong\u003e\u003cbr\u003eA: Check the part number on your current hydraulic pump — if it reads 1243027 or 124-3027, this is the correct replacement. If the label is worn or missing (common on older machines), provide your motor grader serial number and we will verify compatibility before you order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this pump come with mounting hardware or gaskets included?\u003c\/strong\u003e\u003cbr\u003eA: The pump is supplied as a complete unit. Depending on your motor grader configuration, you may need separate mounting bolts, gaskets, or O-rings. Contact us with your serial number and we will confirm exactly what is included and what additional parts you may need for installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the warranty on this hydraulic piston pump?\u003c\/strong\u003e\u003cbr\u003eA: This piston pump comes with a 12-month warranty covering manufacturing defects. The warranty does not cover damage caused by contaminated hydraulic oil, improper installation, failure to flush the hydraulic system, or using non-CAT approved hydraulic fluids.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLooking for this hydraulic pump?\u003c\/strong\u003e Contact us today for pricing, availability, and lead time information.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cp\u003eExplore our full range of \u003ca href=\"\/collections\/construction-machinery-caterpillar\"\u003eCaterpillar piston pumps\u003c\/a\u003e.\u003c\/p\u003e","brand":"Caterpillar","offers":[{"title":"Default Title","offer_id":46680790827164,"sku":"CAT-PP-1243027","price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/7385\/0524\/files\/124-30271.jpg?v=1776258872","url":"https:\/\/hepumpstore.com\/products\/cat-12g-160g-140g-piston-pump-1243027-124-3027","provider":"HEPUMP","version":"1.0","type":"link"}