Excavator Hydraulic Plunger Pump Bob 331 Main Pump
Product Specifiions
| Part Name | Excavator Pump |
| Part Number | AP2D18 / AP2D18LV3RS7 |
| Packaging | Original / Neutral / Customized |
| Warranty | 6 Months |
| Payment Methods | T/T, PayPal, Western Union, etc. |
| Shipping Methods | DHL, FEDEX, UPS, TNT, Air and Sea |
Product Overview
This high-performance hydraulic plunger pump is designed specifically for Bob 331 excavators. The AP2D18 core pump assembly ensures reliable operation and optimal hydraulic performance for your heavy equipment.
Company Profile
Defeng Mechanical Manufacturing Limited Established in 2019, Although our company was established in 2019, but our team has been in this industry for over 15 years! Defeng Mechanical Manufacturing Limited is a dynamic China-based manufacturer and trader specializing in high-quality, custom-engineered components for heavy machinery. Headquartered in the Guangdong Province, we combine advanced production capabilities with global business expertise to serve clients across construction, mining, and marine industries worldwide.
We specialize in providing used excavators, excavator parts, and customized mechanical accessories. Our comprehensive services include:
- Large independent factory with 100 employees
- 15 sets of advanced equipment and 4 production lines
- Direct factory-to-customer delivery for competitive pricing
- Both supplier and manufacturer of mechanical engineering accessories
Contact us for a customized purchase plan tailored to your specific requirements.
Whatsapp: +8618026254557
E-mail: dfsophia2024@163.com
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Customer Feedback
Excellent Customer Satisfaction
All customers who purchase from us express high satisfaction with both our product quality and customer service. Our commitment to excellence ensures reliable performance and long-term value for your equipment.
Packaging & Delivery
We supervise the entire process from factory to customer-designated port to ensure accurate and safe delivery of your products.
- Carton or wooden box packaging with internal waterproof treatment
- Flat container loading for optimal space utilization
- Flexible air or sea transportation options

Frequently Asked Questions
Why should you buy from us instead of other suppliers?
We operate three companies and one factory, offering both price and quality advantages. Our team brings over 20 years of experience in the machinery industry.
What can you provide?
We provide a comprehensive range of excavator parts including long arms, telescopic arms, various bucket styles, amphibious excavator floating pontoon, used excavators and other spare parts like hydraulic components, motors, pumps, engines, under chassis parts...
How long is your delivery time?
Non-customized finished products typically ship within 10 days. Customized products are confirmed based on order quantity, usually requiring 10-15 days.
How about quality control?
Our expert testers conduct rigorous inspections of each product before shipment to ensure superior quality and accurate quantities.
How to order?
Provide us with the machine model, part name, part number, and required quantities. We will prepare a detailed quotation for your review.
What are your payment terms?
We accept T/T, L/C, Western Union, etc. in US dollars, Euros, or RMB. For orders ≤ $1000 USD, full payment in advance. For orders > $1000 USD, 40% T/T in advance with balance due before shipment.