
Product Overview
This high-performance BD30 Diesel Engine Oil Cooler is engineered for durability and optimal thermal management in demanding industrial and commercial applications. As a leading global supplier of heavy-duty engine components, we provide reliable parts with worldwide shipping to major markets including North America, Europe, the Middle East, and Asia-Pacific. This unit is a direct-fit replacement designed to meet or exceed OEM specifications, ensuring seamless integration and reliable operation for your Nissan-powered machinery.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM dimensions and specifications for a perfect fit and optimal cooling performance.
- Enhanced Durability: Constructed from high-grade materials to withstand high temperatures and pressures in demanding diesel engine environments.
- Optimal Thermal Regulation: Efficiently manages engine oil temperature, reducing wear, preventing overheating, and extending the service life of critical engine components.
- Rigorous Quality Control: Each unit undergoes thorough machinery testing and video outgoing-inspection to ensure flawless performance before shipment.
- Global Compliance Ready: Packaged and documented for smooth international export and customs clearance to destinations worldwide.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Oil Cooler |
| Engine Model | BD30 |
| Engine Type | Diesel |
| Primary Part Numbers | 21010-40K25, 21010-40K26 |
| Size | OEM Standard Size |
| Weight | 6 kg (approx.) |
| Warranty | 6 Months |
| Quality Documentation | Machinery Test Report, Video Outgoing-Inspection Provided |
| Packing | Plastic Bag, Box, Carton |
| Place of Origin | Guangdong, China |
OEM Cross-Reference
This oil cooler is a direct replacement for the following OEM part numbers:
- Nissan: 21010-40K25
- Nissan: 21010-40K26
Please verify your existing part number for confirmation.
Compatibility
This BD30 Oil Cooler is designed for Nissan diesel engines and is suitable for a wide range of industrial and commercial vehicles, including but not limited to:
- Primary Application: Nissan BD30 Diesel Engine
- Vehicle & Machinery Types:
- Forklifts
- Excavators
- Trucks
- Loaders
- Bulldozers
- Buses
- Other heavy-duty equipment powered by the BD30 engine
Global Supply & Distribution
We specialize in the international B2B supply of automotive and industrial engine parts. Our established logistics network ensures efficient delivery to key industrial hubs worldwide.
- Worldwide Shipping: We export to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America.
- Fast Delivery: Consolidated shipments and partnerships with major freight forwarders enable cost-effective and timely delivery to major ports and inland logistics centers.
- Export Expertise: All documentation (commercial invoice, packing list, certificate of origin) is prepared to full international standards, ensuring smooth customs clearance.
Quality Assurance
Our commitment to quality ensures you receive a reliable, performance-ready component.
- Manufacturing Standards: Produced in a certified facility using precision tooling and quality-controlled materials.
- Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your operations.
- Pre-Shipment Verification: Every unit is subject to a functional machinery test and a recorded video outgoing-inspection, providing transparent proof of quality prior to dispatch.
FAQ
Q1: How can I confirm this oil cooler is compatible with my specific equipment?
A1: The primary compatibility is with the Nissan BD30 diesel engine. Please verify the engine model in your machinery (forklift, excavator, etc.) and cross-reference the part number stamped on your existing oil cooler (21010-40K25 or 21010-40K26) for a guaranteed fit.
Q2: What is included in the quality documentation mentioned?
A2: With each order, we provide a detailed machinery test report verifying the cooler’s performance metrics. Additionally, a video outgoing-inspection is available upon request, which visually documents the final check of your specific unit(s) before packing, covering aspects like physical integrity and fitting surfaces.
Q3: What are the recommended maintenance checks after installation?
A3: After installing a new oil cooler, it is crucial to check for any leaks at the connection points once the engine is at operating temperature and pressure. Monitor engine oil temperature during initial operation to ensure the cooling system is functioning correctly. Always use the correct grade and specification of engine oil as recommended for the BD30 engine.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .