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Caterpillar Replacement Gear Pump | 334-9112, 334-9116, 334-9122 | Heavy-Duty Hydraulic Pump
| Model Number | 3349122288, 3349112276, 334-9112-276 |
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Product Description
Caterpillar (CAT) Aftermarket High-Performance Hydraulic Gear Pumps
Product Overview: This series of hydraulic gear pumps represents premium aftermarket replacements specifically engineered for Caterpillar (CAT) construction machinery. It covers core part numbers 334-9112-276 (3349112276), 334-9116-287, and 334-9122-288 (3349122288). Built with high-tensile extruded aluminum alloy bodies and a professional three-piece sectional design, these pumps are engineered to withstand the most rigorous high-pressure environments (Rated 25-28 MPa) found in mining and construction sites.
Key Technical Advantages:
100% Direct OEM Interchange: Manufactured strictly to CAT installation standards. Flange specs, shaft splines, and port orientations provide a seamless “plug-and-play” fit, significantly reducing downtime.
Three-Piece Sectional Design: Featuring high-strength extruded aluminum bodies with precision cast covers, these pumps offer superior fatigue resistance and handle continuous high-frequency pressure spikes without deformation.
Advanced Pressure Compensation: Equipped with automated axial gap compensation side plates, maintaining a volumetric efficiency above 95% throughout its service life, effectively reducing oil overheating.
High-Temperature & Harsh Environment Resilience: Internal self-lubricating heavy-duty bearings provide exceptional wear resistance in extreme heat and dust, extending service life under heavy-duty cycles.
Target Applications: Caterpillar excavator hydraulic circuits, wheel loader steering systems, motor grader auxiliary power, and various heavy-duty mobile hydraulic units.
Detailed Models & Parameters:
Core Series: CAT Aftermarket Hydraulic Pump Series.
Part Numbers: 334-9112-276, 3349112276, 334-9116-287, 334-9122-288, 3349122288.
Displacements (cm³/rev): Covering medium to high-flow specifications.
Pressure Ratings: Rated at 25 MPa (250 Bar / 3625 PSI); Peak pressure up to 28 MPa (4000 PSI).
Mounting Features: Standard SAE interfaces with high-tensile splined shaft configurations.
Company Profile
We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
Our Advantages
Fast & Reliable Delivery
Extensive Partnerships
We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses
Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
Competitive Pricing
Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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