
Product Overview
This is a premium replacement water pump engineered for Komatsu 6D105 and S6D105 series diesel engines. Designed for durability and optimal cooling performance, it is an essential component for maintaining engine efficiency and preventing overheating in demanding applications. We supply this high-quality part globally, with established logistics to major industrial markets including North America, Europe, the Middle East, and Asia-Pacific.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and reliable operation.
- Superior Durability: Constructed with high-grade materials to withstand high temperatures and pressures, ensuring a long service life.
- Optimal Cooling Performance: Efficient impeller design ensures consistent coolant flow for effective engine temperature regulation.
- Corrosion Resistance: Critical components are treated or coated to resist corrosion from coolant and environmental exposure.
- Ready for Installation: Supplied as a complete, ready-to-install assembly to minimize downtime during maintenance or repair.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 6136-61-1401 |
| OEM | Komatsu |
| Compatible Engine Models | 6D105, S6D105 |
| Component Type | Water Pump (Coolant Pump) |
| Material (Housing) | Cast Iron / Aluminum Alloy |
| Seal Type | Mechanical Seal |
| Bearing Type | Precision Ball Bearing |
| Condition | New, Aftermarket Replacement |
OEM Cross-Reference
This part is a direct replacement for the following OEM part numbers:
- Komatsu: 6136-61-1401
Note: Always verify the part number from your original component or equipment manual before ordering to ensure compatibility.
Compatibility
This water pump is specifically designed for Komatsu diesel engines and is commonly found in the following applications:
- Engine Models: Komatsu 6D105, Komatsu S6D105.
- Primary Application: Komatsu excavators, wheel loaders, and other heavy machinery utilizing the 6D105/S6D105 engine platform.
- Typical Equipment: Komatsu PC200, PC220, PC300, WA320, and similar models from the 1990s to early 2000s (exact model/year compatibility should be confirmed with your equipment’s service manual).
Global Supply & Distribution
We are a trusted global supplier of heavy machinery engine parts, specializing in efficient international logistics for B2B clients.
- Worldwide Shipping: We export to all major industrial regions, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), Asia-Pacific (Australia, Japan, Singapore, Indonesia), the Middle East (UAE, Saudi Arabia), and South America.
- Fast Delivery Network: Leveraging partnerships with major freight forwarders, we ensure timely delivery to key ports and logistics hubs. Air and sea freight options are available.
- Export Expertise: All shipments are handled with professional export documentation, including commercial invoices, packing lists, and certificates of origin, ensuring smooth customs clearance.
- Bulk Order Support: We offer competitive pricing and dedicated logistics support for container loads (FCL) and large wholesale orders.
Quality Assurance
Our commitment is to provide reliable parts that meet the rigorous demands of the construction and mining industries.
- Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and quality control processes.
- Rigorous Testing: Each pump undergoes performance testing for seal integrity, bearing rotation, and pressure resistance before packaging.
- Warranty: Backed by a standard 12-month warranty against manufacturing defects from the date of purchase.
- Certification: Parts are manufactured to meet or exceed original performance specifications, though they are aftermarket replacements.
FAQ
Q1: How can I confirm this water pump fits my specific Komatsu machine?
A: The most reliable method is to cross-reference the part number. Locate the water pump on your engine and check for the stamped part number (6136-61-1401). Also, verify your engine model (6D105 or S6D105) from the engine nameplate. Providing your machine’s model and serial number to our sales team can also help confirm fitment.
Q2: Is this a complete assembly, and what is included?
A: Yes, this is supplied as a complete, ready-to-install unit. It typically includes the pump housing, impeller, shaft, bearings, mechanical seal, and pulley (if applicable) pre-assembled. No additional core components are required for a standard replacement.
Q3: What are the signs that my Komatsu engine’s water pump needs replacement?
A: Common failure indicators include coolant leakage from the pump’s weep hole, unusual grinding or whining noises from the front of the engine, engine overheating due to insufficient coolant circulation, or visible wobble in the pump pulley. Regular inspection during routine maintenance is recommended to prevent sudden failure.
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 .