
Product Overview
This is a high-performance replacement Oil Pump Assembly engineered for Komatsu 6D140 diesel engines. Designed to meet or exceed OEM specifications, this critical component ensures reliable lubrication under demanding conditions. We supply this part globally to major industrial markets, including North America, Europe, the Middle East, and Asia-Pacific, supporting the maintenance and operation of heavy machinery fleets worldwide.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal oil pressure delivery.
- Enhanced Durability: Constructed from high-grade materials to withstand the high-pressure environment of a diesel engine, ensuring long service life.
- Reliable Performance: Maintains consistent oil flow to protect vital engine components like bearings, camshafts, and turbochargers from wear and failure.
- Direct Replacement: Designed as a complete assembly for straightforward installation, minimizing downtime during maintenance or overhaul.
- Rigorously Tested: Each unit undergoes stringent quality checks, including performance testing, to ensure reliability before shipment.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Oil Pump Assembly |
| Part Number | 6D140-3 |
| OEM Part Number | 6218-51-2004 |
| Compatible Engine Model | Komatsu 6D140 |
| Engine Type | Diesel |
| Size / Dimensions | OEM Standard Size |
| Weight (Approx.) | 10 kg |
| Warranty | 6 Months |
| Packing | Plastic Bag, Box, Carton |
| Place of Origin | Guangdong, China |
OEM Cross-Reference
This oil pump assembly is a direct replacement for the following OEM part numbers:
- Komatsu: 6218-51-2004
- Alternate/Internal Number: 6D140-3
Compatibility
Primary Application: This pump is specifically designed for Komatsu wheel loaders and other machinery equipped with the 6D140 diesel engine.
Compatible Machinery Models (Examples):
- Komatsu WA500 Wheel Loader
Wider Equipment Application: The 6D140 engine is also used in various other heavy equipment, including Excavators, Forklifts, Trucks, Bulldozers, and Buses. Please verify your specific engine model before ordering.
Global Supply & Distribution
We are a professional exporter of heavy machinery parts with extensive experience in international logistics and trade compliance. Our supply chain is optimized for fast, reliable delivery to key global markets.
- Worldwide Shipping: We ship to all major industrial regions, including North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Japan, Singapore), and South America.
- Efficient Logistics: Orders are processed rapidly and shipped via air or sea freight to major ports and industrial hubs to minimize transit time.
- Export-Ready Packaging: All parts are securely packed in export-standard cartons to prevent damage during long-distance transportation.
Quality Assurance
Our commitment to quality ensures you receive a reliable part that performs as expected.
- Manufacturing Standards: Produced in ISO-certified facilities using precision machining and quality-controlled materials.
- Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects.
- Pre-Shipment Verification: Every unit is supported by a Machinery Test Report. Optional Video Outgoing-Inspection is available to provide visual confirmation of the part’s condition and functionality before dispatch.
FAQ
Q: Is this oil pump a direct bolt-on replacement for my Komatsu WA500?
A: Yes, this Oil Pump Assembly (Part# 6D140-3 / 6218-51-2004) is manufactured to the exact OEM specifications for the Komatsu 6D140 engine found in the WA500 wheel loader, ensuring a direct fit without modification.
Q: What should I check before installing this replacement oil pump?
A: Prior to installation, it is good practice to prime the pump with clean engine oil to prevent dry start-up. Also, inspect the oil pickup tube and screen for any debris or damage, and ensure the mounting surface on the engine block is clean and flat.
Q: Do you provide documentation for customs clearance?
A: Yes, as experienced exporters, we provide all necessary commercial invoices, packing lists, and certificates of origin required for smooth customs clearance in your country.
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 .