Product Overview

This high-quality Flywheel Gear Assembly is engineered as a direct replacement for Yanmar 4D94 series diesel engines. Designed for durability and precise fitment, it is an essential repair component for heavy machinery and commercial vehicles. We supply this part globally, with significant demand from industrial markets in North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable performance for your equipment fleet.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications (OEM Size) for a perfect fit and seamless integration with your Yanmar engine.
• Enhanced Durability: Constructed from high-grade materials to withstand the high-torque demands and thermal stresses of diesel engine operation.
• Reliable Engine Starts: Features precisely cut gear teeth for smooth and consistent engagement with the starter motor, ensuring reliable engine cranking.
• Corrosion Resistance: Treated surfaces help prevent rust and wear, extending the service life of the assembly even in harsh operating environments.
• Cost-Effective Solution: Provides OEM-level quality and performance at a competitive price, reducing downtime and maintenance costs for your business.

Technical Specifications

OEM Cross-Reference

This flywheel gear assembly is a direct replacement for the following OEM part numbers:

• Yanmar: 129930-21590, Ym129930-21590

Always verify the part number from your original equipment or service manual before ordering to ensure compatibility.

Compatibility

Compatible Yanmar Engine Models: 4D94, 4D94E, 4D94LE diesel engines.

Vehicle & Machinery Applications: This part is commonly used in a wide range of equipment powered by the specified Yanmar engines, including but not limited to:

• Excavators
• Wheel Loaders and Skid-Steer Loaders
• Bulldozers
• Industrial Forklifts
• Medium-Duty Trucks
• Buses and Coaches
• Generators and Industrial Power Units

Global Supply & Distribution

We are a professional exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. Our global supply chain ensures efficient delivery to key industrial regions worldwide.

• Worldwide Shipping: We ship to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), Asia-Pacific (Australia, Japan, Singapore), the Middle East (UAE, Saudi Arabia), and South America.
• Fast Delivery to Hubs: Consolidated shipments to major ports and logistics centers (e.g., Rotterdam, Los Angeles, Singapore, Dubai) ensure reduced transit times for bulk orders.
• B2B Expertise: We specialize in serving distributors, workshops, and fleet maintenance companies, with support for customs documentation and Incoterms.

Quality Assurance

We are committed to supplying parts that meet the highest standards of reliability and performance.

• Manufacturing Standards: Components are produced using precision machining and quality-controlled processes.
• Warranty: Backed by a 6-month warranty against manufacturing defects from the date of purchase.
• Testing & Inspection: Each batch undergoes rigorous quality checks. A Machinery Test Report is available, and Video Outgoing-Inspection can be provided upon request to verify product condition before shipment.

FAQ

Q: How can I confirm this flywheel gear assembly will fit my specific Yanmar engine?
A: The most reliable method is to cross-reference the part number. This assembly replaces Yanmar part number 129930-21590. Please check your engine’s service manual or the part number stamped on your original flywheel or ring gear. It is compatible with the 4D94, 4D94E, and 4D94LE engine models.

Q: What is included in the packaging, and is installation guidance provided?
A> The part is supplied as a single flywheel gear assembly, securely packed in a plastic bag inside a box or carton for export. While basic specifications are provided, professional installation by a qualified mechanic is required. We recommend consulting the official Yanmar service manual for detailed torque specifications and installation procedures.

Q: Do you offer technical support and what are the lead times for international orders?
A> Yes, we provide pre-sales technical support for compatibility verification. Lead times vary by destination and order size. For standard container loads (LCL/FCL) to major ports, typical sea freight transit is 20-35 days. We also offer expedited air freight options for urgent requirements. Please contact us for a specific shipping quote based on your location.

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 .