{"product_id":"cat-826g-ii-826h-825g-ii-825h-824g-ii-824h-piston-pump-1843124-184-3124","title":"CAT 1843124 (184-3124) Piston Pump | Fits 826G II 826H 825G II 825H 824G II 824H","description":"\u003ch2\u003eCAT 1843124 (184-3124) Piston Pump | Fits 826G II 826H 825G II 825H 824G II 824H Wheel Loader\u003c\/h2\u003e\n\u003cp\u003ePremium hydraulic piston pump designed as a direct OEM-compatible replacement for Caterpillar 826G II, 826H, 825G II, 825H, 824G II, and 824H wheel loaders. Built to deliver consistent hydraulic performance and long service life in demanding mining, quarry, and construction applications.\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1843124 \/ 184-3124\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 mining, quarry, and construction 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 1843124 \/ 184-3124\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 wheel loaders:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCaterpillar 826G II Wheel Loader\u003c\/li\u003e\n\u003cli\u003eCaterpillar 826H Wheel Loader\u003c\/li\u003e\n\u003cli\u003eCaterpillar 825G II Wheel Loader\u003c\/li\u003e\n\u003cli\u003eCaterpillar 825H Wheel Loader\u003c\/li\u003e\n\u003cli\u003eCaterpillar 824G II Wheel Loader\u003c\/li\u003e\n\u003cli\u003eCaterpillar 824H Wheel Loader\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWheel Loader Lift and Tilt Functions\u003c\/li\u003e\n\u003cli\u003eWheel Loader Drive and Steering Systems\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty Loading and Digging Operations\u003c\/li\u003e\n\u003cli\u003eMining, Quarry, and Construction 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 826G II, 826H, 825G II, 825H, 824G II, or 824H wheel loaders?\u003c\/strong\u003e\u003cbr\u003eA: Common signs include slow or weak lift and tilt response, the loader bucket hesitating or stalling when raising heavy loads, hydraulic oil overheating during normal loading cycles, whining or knocking noise from the pump area, and visible hydraulic fluid leakage. The 826G II and 826H are large wheel loaders used in high-production mining and landfill operations — pump failure causes immediate and severe productivity loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1843124 fit all six wheel loader models?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the 1843124 (184-3124) is designed as a direct OEM-compatible replacement for the CAT 826G II, 826H, 825G II, 825H, 824G II, and 824H wheel loaders. These models share the same pump mounting and hydraulic system architecture. Contact us with your loader serial number to confirm exact compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What hydraulic functions does this pump support?\u003c\/strong\u003e\u003cbr\u003eA: As the main hydraulic pump, it supplies flow to the lift and tilt circuits (bucket functions), steering system, and any auxiliary circuits. In high-production loading applications like the 826G II in mining, the pump operates continuously under heavy load — any performance loss directly reduces loading cycle efficiency and tons per hour.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I flush the hydraulic system when replacing this pump on a large wheel loader?\u003c\/strong\u003e\u003cbr\u003eA: Always, and with extra diligence. Large wheel loaders like the 826G II and 826H operate under extreme continuous load in mining and landfill applications. Metal particles and contaminants from the old pump can destroy the new pump within hours. Drain and replace all hydraulic oil, flush the system thoroughly with clean oil, replace all filters, and refill with fresh Cat HYDO Advanced hydraulic oil. We strongly recommend professional installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of hydraulic oil is recommended for these wheel loaders?\u003c\/strong\u003e\u003cbr\u003eA: Caterpillar specifies Cat HYDO Advanced 10W or 30W depending on ambient operating temperature. For large wheel loaders in mining and landfill operations under constant heavy load, using non-CAT approved hydraulic fluids can cause immediate pump failure and void the warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this is the correct pump for my wheel loader?\u003c\/strong\u003e\u003cbr\u003eA: Check the part number on your current hydraulic pump — if it reads 1843124 or 184-3124, this is the correct replacement. If the label is worn or missing (common in landfill\/compaction environments), provide your wheel loader 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 wheel loader 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\u003eLooking for this hydraulic pump? 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":46671423602844,"sku":"CAT-PP-1843124","price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/7385\/0524\/files\/184-3124_1.jpg?v=1776867820","url":"https:\/\/hepumpstore.com\/products\/cat-826g-ii-826h-825g-ii-825h-824g-ii-824h-piston-pump-1843124-184-3124","provider":"HEPUMP","version":"1.0","type":"link"}