Product Overview

This is a premium replacement crankshaft engineered for the Yanmar 4D94LE diesel engine, a core power unit in heavy-duty industrial and agricultural machinery. Manufactured to exact OEM specifications (YM129902-21050), this component is designed for durability and performance under demanding conditions. We specialize in global B2B supply, serving major markets across North America, Europe, the Middle East, and the Asia-Pacific region with reliable logistics and export compliance.

Key Features & Benefits

• Precision Engineered: Manufactured to strict OEM dimensions and tolerances, ensuring a perfect fit and optimal engine balance.
• Superior Durability: Crafted from high-grade materials and subjected to rigorous heat treatment for enhanced strength and resistance to wear and fatigue.
• Guaranteed Performance: Restores full engine power and torque output, maintaining the operational efficiency of your machinery.
• Comprehensive Quality Control: Each unit undergoes thorough machinery testing and video-recorded outgoing inspection to verify quality before shipment.
• Direct OEM Replacement: A cost-effective alternative to genuine Yanmar parts without compromising on reliability or fitment.

Technical Specifications

OEM Cross-Reference

Primary OEM Part Number: Yanmar 129902-21050 / YM129902-21050

This is a direct cross-reference for the genuine Yanmar crankshaft. Please verify this number against your engine’s documentation or the original part for confirmation.

Compatibility

This crankshaft is specifically designed for the Yanmar 4D94LE diesel engine. This engine is commonly found in a wide range of industrial and commercial equipment, including but not limited to:

• Excavators: Various Yanmar and compatible-brand excavator models.
• Trucks & Buses: Medium-duty commercial vehicles.
• Material Handling: Forklifts and Loaders.
• Earthmoving: Bulldozers and other construction machinery.
• Agricultural Machinery: Tractors and farm equipment.

It is the buyer’s responsibility to confirm the engine model in their specific equipment before ordering.

Global Supply & Distribution

We are a professional exporter of heavy-duty engine components with extensive experience in international B2B trade. Our streamlined supply chain ensures efficient delivery to key industrial hubs worldwide.

• Worldwide Shipping: We ship to all major markets, including the USA, Canada, Germany, UAE, Australia, Japan, and Southeast Asia.
• Fast Port-to-Port Delivery: Optimized logistics for timely delivery to major seaports and airports.
• Export Compliance: All documentation (Commercial Invoice, Packing List, Certificate of Origin) is provided in full compliance with international trade regulations.
• Bulk & Single Orders: Available for both single-unit replacement and larger wholesale procurement.

Quality Assurance

Our commitment to quality ensures you receive a reliable, high-performance component.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and metallurgical processes.
• Testing & Inspection: Every crankshaft is precision-measured and undergoes a detailed machinery test report. A video outgoing-inspection is provided for transparency.
• Warranty Backed: Protected by a 6-month warranty against manufacturing defects, providing peace of mind for your operations.

FAQ

Q: How do I confirm this crankshaft fits my Yanmar 4D94LE engine?
A: The most reliable method is to cross-reference the part number stamped on your original crankshaft or listed in your engine’s service manual with our OEM number: 129902-21050 or YM129902-21050. Always verify the engine model (4D94LE) is correct.

Q: What is included with the crankshaft, and is it ready for installation?
A: The crankshaft is supplied as a single, fully machined component. It does not include bearings, seals, or other assembly parts. We recommend replacing these related components during a rebuild. The part is clean, inspected, and ready for professional installation following standard engine rebuilding procedures.

Q: What are the shipping terms and lead time to my country?
A: We operate on standard international trade terms (FOB, CIF, etc.). Lead times vary by destination but are optimized for speed. Please contact us with your destination port/city for an accurate shipping quote and estimated time of arrival. We have extensive experience shipping heavy parts globally.

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 .