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Weihuparts CAT 312D Hydraulic Pump – Reliable Excavator Part
The Weihuparts CAT 312D Hydraulic Pump is engineered to deliver exceptional performance and reliability for your excavator. Designed specifically to fit CAT 312D models, this hydraulic pump ensures smooth and efficient hydraulic power for all your digging, lifting, and heavy-duty operations.
Crafted with precision and advanced technology, the Weihuparts hydraulic pump offers superior durability and long service life, minimizing downtime and maintenance costs. Its robust construction withstands demanding working conditions, making it an ideal choice for both routine tasks and challenging job sites.
Weihuparts prioritizes quality and innovation, with every hydraulic pump thoroughly tested to meet strict industry standards. With this pump, you can expect consistent hydraulic pressure, smooth fluid flow, and optimal machine performance—keeping your excavator running at peak efficiency.
As a trusted global provider of excavator spare parts, Weihuparts offers this hydraulic pump at a competitive price without compromising on quality. Fast shipping and reliable customer service ensure you receive the right part when you need it most.
Upgrade your CAT 312D excavator today with the Weihuparts hydraulic pump—built to extend your machine’s life and boost productivity with every operation. Experience the perfect balance of quality, affordability, and innovation that only Weihuparts can deliver.
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Q&A
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.
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.
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.
How can I place an order?
You can place an order through our user-friendly online platform or by contacting our sales team directly. Simply browse our catalog, select the parts you need, and follow the checkout process to complete your order.
If you have any other questions, please write email to us or call us , we will reply you ASAP.

Excavator 4BG1T Engine Assembly | High-Performance Engine for Heavy Equipment
Weihuparts offers high-performance Excavator 4BG1T engine assemblies. Our reliable Isuzu 4BG1T engine powers your heavy equipment. Find the ideal diesel engine excavator for sale solution for your needs.

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

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Discover the high-performance QSK23 Excavator Engine Assembly by Weihuparts, designed for reliable and efficient excavation. Ideal QSK23 engine parts for excavators, this engine assembly delivers durability and power. Explore our engine assembly for sale to boost your machinery’s performance today.

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