مضخة هيدروليكية 339-0512 لـ حفارة Caterpillar 320E 323E L LN LRR

High-Performance Hydraulic Main Pump for CAT 320E 323E L LN LRR Excavator | Part No. 339-0512 334-9992

1. Product Core Overview
E-Series Precision: Specifically engineered for the Caterpillar 320E and 323E platforms, including L (Long), LN (Long Narrow), and LRR (Log Loader/Reduced Radius) configurations. This pump is designed to handle the high-efficiency requirements of Tier 4 engine integration.

13-Year Specialized Expertise: Supplied by a professional factory with 13 years of leadership in CAT hydraulic systems, ensuring every unit meets the stringent flow-compensation standards of the E-series.

Exact OEM Compatibility: Fully interchangeable with Caterpillar part numbers 339-0512 (3390512) and 334-9992 (3349992). This is a direct-fit replacement that restores factory-level breakout force and cycle times.

2. Technical Specifications & Compatibility
Product Name: Main Hydraulic Pump Assembly

Part Numbers: 339-0512 / 334-9992 / 3390512 / 3349992

Machine Compatibility: * CAT 320E, 320E L, 320E LN, 320E LRR, 320E RR

CAT 323E, 323E L, 323E LN, 323E SA

Quality Tiers: Original New, Premium OEM Grade, and High-Performance Rebuild options available.

Core Build: Constructed with high-density alloy cylinder blocks and precision-lapped piston sets to ensure zero internal leakage and maximum thermal stability under heavy load.

3. Why Partner with a 13-Year Professional Expert?
Technical Mastery: We understand the electronic load-sensing nuances of the 320E/323E series. Our pumps are calibrated to sync perfectly with the machine’s ECM, preventing hydraulic "lag" or engine over-speeding.

Full-Body Parts Support: Our expertise covers the entire machine—from main pumps and travel motors to undercarriage and attachments—supporting brands like CAT, Volvo, Komatsu, and Sany.

Flexible Quality Selection: Whether you require an original premium unit for a long-term project or a cost-effective aftermarket solution for an older machine, we provide clear, tiered quality options.

Direct Factory Prices: Benefit from our optimized 13-year supply chain, providing high-quality hydraulic solutions at competitive wholesale prices.

Proven Global Reliability: Trusted by international repair workshops and distributors for consistent quality, expert technical support, and rapid warranty response.

4. Fast Global Delivery & Logistics
We prioritize speed to get your E-series excavator back to work:

Express Delivery: Rapid door-to-door shipping via DHL, FedEx, UPS, and TNT (Typical arrival: 3-7 business days).

Air Freight: Fast airport-to-airport delivery for urgent, high-priority project needs.

Sea Freight: The most economical solution for bulk inventory orders and large-scale replenishment.

Secure Export Packaging: Every 339-0512 pump is secured in a reinforced, shock-proof wooden crate to ensure it arrives in perfect condition.

5. Ordering & Professional Support
Fitment Verification: Please provide your machine's serial number (e.g., prefix TJR, PWB, or REW) to ensure 100% fitment accuracy.

Real-Time Quote: Contact us today for the latest pricing, stock status, and tiered quality comparisons.

Installation Guidance: Our technical team is available 24/7 to provide advice on hydraulic system flushing and initial pump priming.