Short Description
Premium heavy-duty factory-direct aftermarket 350-0666 Main Hydraulic Piston Pump Group, engineered as a 100% precision drop-in OEM replacement for Caterpillar (CAT) D8T heavy-duty bulldozers and large earthmoving machinery. Manufactured strictly to original heavy-industrial blueprint layouts, this high-pressure axial piston pump delivers robust, low-pulsation hydraulic power to ensure maximum implement breakout forces, swift blade response, and zero pressure lag under severe quarrying, mining, and heavy pushing stresses.
Key Highlights
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100% Exact Caterpillar Blueprint Matching: Fully reverse-engineered to precise CAT 350-0666 factory physical dimensional metrics. Heavy-duty splined drive shafts, SAE flange connections, and control valve mounting positions line up perfectly for immediate bolt-on installation.
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Upgraded Anti-Wear Bimetal Rotary Groups: The internal cylinder barrel features a high-density, copper-plated friction interface, paired with premium case-hardened alloy pistons and shoes. This advanced structural profile significantly minimizes internal case drainage and prevents seizure under high thermal shocks.
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Pre-Calibrated Load Sensing Control Valves: Comes fully dressed with heavy-duty control regulators pre-calibrated to match Caterpillar’s original horsepower and pressure-flow curves, ensuring seamless integration with the machine’s electronic monitoring system without engine lugging.
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Severe-Duty Export Ocean Packaging: To accommodate its substantial heavy weight, every pump assembly undergoes thorough anti-rust sealing with VCI protective film before being securely bolted inside heavy-duty, multi-layered export wooden crates.
Technical Specifications Matrix
| CAT OEM Technical Parameter | Specification Data Standard |
|---|---|
| OEM Part Number | 350-0666 / 3500666 |
| Equipment Brand Compatibility | Caterpillar (CAT) Heavy Earthmoving |
| Target Machine Models | D8T Series Track-Type Tractors / Heavy Bulldozers |
| System Application | Implement Hydraulic System (Blade / Ripper Control) |
| Pump Execution Type | Variable Displacement Axial Piston Pump |
| Sealing Configuration | Premium High-Temperature FKM (Viton) Seals Pre-installed |
| Quality Assurance | 12 Months Factory Warranty & Full Operational Test Log Integration |
FAQ
Q1: Is this 350-0666 pump replacement completely ready for plug-and-play installation? A: Yes. Our 350-0666 pump group is supplied as a fully built assembly, including the primary variable-displacement piston pump and the attached, pre-calibrated control regulator valve block. All ports are capped with heavy blind plugs to prevent any particle ingress during transit.
Q2: How do you verify that this aftermarket pump matches Caterpillar’s strict performance standards? A: We fully understand that downtime on a heavy D8T bulldozer is extremely expensive. Every single 350-0666 pump assembly is run through exhaustive loading loops on our factory’s heavy-duty testing equipment. We monitor internal pressure curves, dynamic response times, and seal temperatures under maximum continuous load to guarantee full compliance before shipping.
