Product Overview

This high-performance rotor head is engineered as a direct replacement for Yanmar 4TNV94 and 4TNV98 series diesel engines. Manufactured to exact OEM specifications, it ensures optimal engine balance, fuel injection timing, and overall operational integrity. We supply this critical component to a global network of distributors, engine rebuilders, and industrial equipment service centers across North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineered: Manufactured to strict tolerances for a perfect fit and seamless integration with Yanmar 4TNV series engines, ensuring reliable performance.
• Enhanced Durability: Constructed from high-grade materials to withstand the rigorous demands of continuous operation in industrial, marine, and generator applications.
• Optimal Engine Balance: Critical for smooth engine running, reducing vibration and wear on associated components like bearings and seals.
• Direct OEM Replacement: Designed as a 1:1 substitute for the original part, eliminating compatibility concerns and simplifying the repair process.
• Comprehensive Support: Backed by a 6-month warranty and full technical documentation, including machinery test reports for quality verification.

Technical Specifications

OEM Cross-Reference

This rotor head corresponds directly to the following OEM part number:

• Yanmar: 129935-51741

It is a direct replacement component designed for compatibility without modification.

Compatibility

This rotor head is specifically designed for Yanmar’s 4TNV series of industrial diesel engines. Primary applications include equipment powered by these engines, such as:

• Generator Sets (Gensets): For prime and standby power applications.
• Marine Propulsion & Auxiliary Engines: Used in workboats and commercial vessels.
• Construction Machinery: Including excavators, loaders, and compactors.
• Industrial Equipment: Pumps, compressors, and material handling systems.
• Agricultural Machinery: Tractors and irrigation systems.

Global Supply & Distribution

We are a specialized exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. Our supply chain is optimized for fast, reliable delivery to major global markets.

• Worldwide Shipping: We ship to all major industrial regions, including North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Singapore, Japan).
• Efficient Logistics: Consolidated shipments to key ports and direct freight options to major industrial hubs ensure timely delivery for your projects.
• Export Expertise: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared to meet international customs requirements.

Quality Assurance

Every component is subject to a rigorous quality control process to meet the high standards required for industrial diesel engines.

• Manufacturing Standards: Produced in ISO-certified facilities using precision CNC machinery and advanced metallurgy.
• Comprehensive Testing: Each rotor head undergoes dimensional inspection and dynamic balancing tests. A machinery test report is provided with each shipment.
• Video Outgoing-Inspection: Available upon request, providing visual verification of the part and its packaging prior to shipment.
• Warranty: This part is covered by a 6-month warranty against manufacturing defects, ensuring peace of mind for our B2B clients.
• Post-Warranty Support: Continued online technical support is available to assist with installation or operational queries.

FAQ

Q1: Is this rotor head a direct fit for my Yanmar 4TNV98 engine?
A1: Yes. This rotor head (Part# 129935-51741) is manufactured to the exact OEM specifications and dimensions for the Yanmar 4TNV94 and 4TNV98 engine series, ensuring a direct, bolt-on replacement without requiring modifications.

Q2: What documentation is provided to verify the part’s quality?
A2: We provide a machinery test report with each unit, detailing key inspection results. Additionally, we can arrange a video outgoing-inspection prior to shipment for final buyer approval, offering full transparency into the product’s condition.

Q3: Do you offer support for installation or compatibility questions?
A3: Absolutely. We provide dedicated online technical support. For complex installations, we recommend consulting the official Yanmar service manual. Our team can assist with cross-referencing and confirming the application for your specific equipment model.

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 .