This fan blade is specifically designed for the 4D31 engine. It has a total length of 530mm, an inner diameter of 38mm, and a 12-blade design, effectively improving engine heat dissipation efficiency. Made of high-strength, heat-resistant materials, it offers a stable and corrosion-resistant structure, ensuring long-term use under high-temperature and high-load conditions. It's easy to install and can be directly replaced.
Key Features & Benefits
- High Strength and Durability: Made of high-quality materials, impact-resistant and corrosion-resistant.
- Efficient Heat Dissipation: 12 blades enhance engine cooling.
- Precise Dimensions: 530mm overall length, 38mm inner diameter.
- Direct Replacement: No modification required, easy installation.
- Adaptable to high temperatures and high loads: Maintains a stable structure for long-term use.
- Low Maintenance: Durable design reduces replacement frequency.

Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: If I only know the excavator model, but can not offer parts No., what should I do?
A2: If possible, you can send us pictures of old products, name plate or the size for reference.
Q3: Can you accept sample order?
A3: Yes sure. We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: How can I do if there is something wrong with the items?
A5: Our products have been professionally tested and the quality is very stable. If you really found something wrong, please contacts. We have a professional after-sales team to help you solve the problem.