{"product_id":"cat-330c-330c-fm-330c-l-330c-mh-gear-pump-2835992-283-5992","title":"CAT 330C, 330C FM, 330C L, 330C MH Gear Pump | Part No. 2835992 (283-5992)","description":"\u003ch2\u003eCAT 2835992 (283-5992) Gear Pump | Fits 330C 330C FM 330C L 330C MH Excavator\u003c\/h2\u003e\n\u003cp\u003ePremium hydraulic gear pump designed as a direct OEM-compatible replacement for Caterpillar 330C, 330C FM, 330C L, and 330C MH excavators. Built to deliver consistent hydraulic flow and long service life in demanding mining, quarry, and heavy excavation applications.\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2835992 \/ 283-5992\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 heavy excavation 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 2835992 \/ 283-5992\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Hydraulic Gear 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 gear pump fits the following Caterpillar excavators:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCaterpillar 330C Excavator\u003c\/li\u003e\n\u003cli\u003eCaterpillar 330C FM Excavator\u003c\/li\u003e\n\u003cli\u003eCaterpillar 330C L Excavator\u003c\/li\u003e\n\u003cli\u003eCaterpillar 330C MH Excavator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExcavator Boom and Arm Hydraulic Circuits\u003c\/li\u003e\n\u003cli\u003eExcavator Bucket and Slewing Functions\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty Digging and Trenching Operations\u003c\/li\u003e\n\u003cli\u003eMining, Quarry, and Heavy Excavation 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 gear pump on CAT 330C, 330C FM, 330C L, or 330C MH excavators?\u003c\/strong\u003e\u003cbr\u003eA: Common signs include loss of hydraulic power to boom, arm, or bucket functions, erratic or slow implement response, unusual noise (knocking or whining) from the hydraulic pump area, visible oil leakage around the pump, and overheating of the hydraulic system. The CAT 330C series is widely used in mining, quarry, and heavy excavation — a failing gear pump causes loss of productivity and costly downtime.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 2835992 fit all four excavator models?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the 2835992 (283-5992) is designed as a direct OEM-compatible replacement for the CAT 330C, 330C FM, 330C L, and 330C MH excavators. These models share the same hydraulic pump mounting and drive specifications. Contact us with your excavator serial number to confirm exact compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the gear pump do on a CAT 330C excavator?\u003c\/strong\u003e\u003cbr\u003eA: The hydraulic gear pump is responsible for supplying pressurized hydraulic fluid to the excavator's implement circuits — boom, arm, bucket, and swing functions. It is the primary hydraulic power source for all heavy-duty digging and trenching operations. A failing gear pump causes loss of hydraulic pressure, leading to slow implement response, loss of dig force, and potential damage to other hydraulic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I inspect the hydraulic system when replacing this gear pump on a 330C?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Before installing the new gear pump, inspect all hydraulic lines, fittings, filters, and the hydraulic tank for contamination, discoloration, or metal particles. A failed gear pump often sheds metal debris throughout the hydraulic system. flushing all hydraulic lines, replacing the hydraulic oil and filter, and checking for leaks is essential before startup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of hydraulic oil is recommended for the CAT 330C gear pump circuit?\u003c\/strong\u003e\u003cbr\u003eA: Caterpillar specifies Cat HYDO Advanced 10W or 30W hydraulic oil for the gear pump hydraulic circuit. Using non-CAT approved hydraulic fluids can cause accelerated wear, seal failure, and void the warranty. In demanding mining and quarry applications, more frequent hydraulic oil and filter changes are strongly recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this is the correct gear pump for my CAT excavator?\u003c\/strong\u003e\u003cbr\u003eA: Check the part number on your current gear pump — if it reads 2835992 or 283-5992, this is the correct replacement. If the label is worn or missing, provide your excavator serial number and we will verify compatibility before you order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this gear pump come with mounting hardware or gaskets included?\u003c\/strong\u003e\u003cbr\u003eA: The gear pump is supplied as a complete unit. Depending on your excavator configuration, you may need separate mounting bolts, hydraulic fittings, 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 gear pump?\u003c\/strong\u003e\u003cbr\u003eA: This gear 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, using the wrong hydraulic oil type, or operating the excavator with a damaged hydraulic system.\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\/gear-pump-caterpillar\"\u003eCaterpillar gear pumps\u003c\/a\u003e.\u003c\/p\u003e","brand":"Caterpillar","offers":[{"title":"Default Title","offer_id":46656133988508,"sku":"CAT-GP-2835992","price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/7385\/0524\/files\/283-59921.jpg?v=1775746847","url":"https:\/\/hepumpstore.com\/products\/cat-330c-330c-fm-330c-l-330c-mh-gear-pump-2835992-283-5992","provider":"HEPUMP","version":"1.0","type":"link"}