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High-Quality 312D Excavator Hydraulic Pump
The Weihuparts 312D Excavator Hydraulic Pump is engineered to deliver exceptional performance and reliability for your excavator’s hydraulic system. Designed specifically for 312D models, this pump ensures optimal hydraulic pressure and smooth operation, helping your machinery maintain peak efficiency even under demanding conditions.
At Weihuparts, we understand that downtime is costly. That’s why our hydraulic pumps undergo rigorous quality control, ensuring each unit meets high standards of durability and performance. Built with High Quality materials and advanced manufacturing technology, the 312D hydraulic pump offers long-lasting service life and resists wear and tear from heavy workloads.
This pump is a perfect replacement part, designed for easy installation and compatibility with your excavator system. With superior sealing and precision engineering, it minimizes leaks and maximizes efficiency, supporting smooth and responsive hydraulic functions essential for excavation tasks.
Choosing Weihuparts means more than just buying a part—you gain a trusted partner dedicated to supporting your business with reliable products, competitive pricing, and timely delivery worldwide. Our commitment to innovation and quality innovation is reflected in every hydraulic pump we supply.
Ensure your excavator runs smoothly and efficiently by investing in the Weihuparts 312D Excavator Hydraulic Pump—a robust, cost-effective solution engineered to keep your equipment moving forward.
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Frequently Asked Questions
What types of excavator parts do you offer?
Weihuparts provides a comprehensive range of excavator parts, including but not limited to buckets, hydraulic components, undercarriage parts, and engine components. Our goal is to be your one-stop solution for all excavator needs.
What is your shipping policy?
We offer a variety of shipping options to meet your needs. Orders are typically processed within [insert processing time] days, and delivery times may vary based on your location. We will provide you with tracking information once your order has shipped.
Do you provide warranties on your products?
Yes, we stand by the quality of our products. Most parts come with a warranty that covers manufacturing defects. Please refer to the specific warranty information provided with your purchase or contact our customer service team for details.
Are your parts compatible with all excavator brands?
Weihuparts strives to offer parts compatible with a wide range of excavator brands and models. However, we recommend checking the product specifications or consulting with our team to ensure compatibility with your specific excavator.

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Weihuparts offers the high-performance Isuzu 4HK1 diesel engine, ideal for excavators. The reliable 4HK1 diesel engine for excavators ensures optimal power and efficiency. Explore our diesel engine excavator for sale and boost your machinery’s productivity today.

Yanmar 3TNV74F-SPFN Diesel Engine | 3-Cylinder, 1.5L Compact Power Unit
🔧 Yanmar 3TNV74F-SPFN Engine Product Overview
The Yanmar 3TNV74F-SPFN is a high-performance, low-emission, 3-cylinder, water-cooled diesel engine designed for small and medium-sized construction machinery, agricultural equipment, and generator sets. Its compact design and excellent fuel efficiency make it an ideal choice for a variety of applications.
✅ Core Technical Specifications
Displacement: 0.993 liters
Bore × Stroke: 74 mm × 77 mm
Maximum Power: 11.2 kW (approximately 15.1 HP) @ 2400 rpm
Compression Ratio: 23.1 (Effective Compression Ratio 21.3)
Fuel Type: Diesel
Combustion Method: Indirect Injection (IDI)
Intake Method: Naturally Aspirated
Cooling Method: Water-Cooled
Emission Standards: Meets EPA Tier 4 Final and EU Stage V standards
Weight: Approximately 103 kg
Mounting Method: Suitable for variable-speed and fixed-speed equipment

Cummins B5.9 Engine for Excavators | Trusted Heavy-Duty Diesel
Weihuparts offers the reliable Cummins B5.9 engine for excavators, perfect for heavy-duty performance. Buy a B5.9 excavator engine and genuine B5.9 engine parts for excavators from us. Explore a top-quality Cummins excavator engine for sale now and boost your machinery’s power.

K3V112DTP Hydraulic Pump | High-Performance Axial Piston Pump for Excavators
The K3V112DTP hydraulic pump is a top-quality axial piston pump widely used in excavators and heavy machinery. Known for its durability and efficiency, this pump ensures stable hydraulic power transmission and smooth equipment operation. Available in both OEM and aftermarket versions, it is an ideal replacement or upgrade for hydraulic systems requiring precision and reliability.
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✔️ Designed for excavators and heavy machinery applications
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✔️ Axial piston pump for efficient hydraulic power delivery
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✔️ OEM and aftermarket options to suit various budgets
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✔️ High pressure capacity and stable fluid flow
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✔️ Made from durable materials with precision manufacturing
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✔️ Fast shipping with secure packaging
- 🛒 Order Your K3V112DTP Hydraulic Pump Today – Durable, Reliable & Efficient
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