Product Overview

This high-performance piston assembly is engineered for Yanmar 4TNV98 diesel engines, designed to meet or exceed OEM specifications. As a leading global supplier, we provide reliable engine components to major markets worldwide, including North America, Europe, the Middle East, and Asia-Pacific, ensuring fast delivery to key industrial and port hubs.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal engine performance.
• Enhanced Durability: Constructed from high-grade materials to withstand the high-pressure and thermal stresses of diesel operation, ensuring long service life.
• Optimized Performance: Designed to maintain proper compression and combustion efficiency, contributing to fuel economy and reliable power output.
• Complete Assembly: Includes the piston pin for a ready-to-install solution, saving time and ensuring component compatibility.
• Rigorous Quality Control: Each part undergoes stringent inspection and testing, backed by a comprehensive machinery test report and video outgoing-inspection.

Technical Specifications

OEM Cross-Reference

Primary OEM Number: 129907-22090

This part is a direct replacement for the genuine Yanmar component bearing this number. Always verify the part number from your original engine or service manual before ordering.

Compatibility

This piston with pin is specifically designed for the Yanmar 4TNV98 diesel engine. This engine is widely used in various machinery across multiple industries, including:

• Construction: Excavators, compactors, light towers.
• Industry: Pump sets, air compressors, industrial power units.
• Agriculture: Tractors, harvesters, irrigation pumps.
• Genset: Standby and prime power generator sets.
• Marine: Auxiliary engines for small to medium vessels.
• Material Handling: Forklifts and other warehouse equipment.

Global Supply & Distribution

We specialize in the international export of high-quality engine components. Our logistics network ensures efficient shipping to all major global markets:

• Primary Regions: North America (USA, Canada), European Union, United Kingdom, Australia, Southeast Asia, Middle East, and Africa.
• Fast Delivery: Consolidated shipments to major ports like Los Angeles, Rotterdam, Singapore, Dubai, and Sydney, with reliable inland forwarding options.
• Export Compliance: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared to meet international customs requirements for a smooth import process.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machinery and strict quality protocols.
• Warranty: Backed by a 6-month warranty against manufacturing defects from the date of purchase.
• Testing & Inspection: Every batch undergoes dimensional checks, material analysis, and a final video outgoing-inspection. A machinery test report is provided with the shipment for your quality records.
• Origin: Manufactured in Guangdong, China, a global hub for precision automotive and machinery parts.

FAQ

Q: How do I confirm this piston is the correct part for my specific Yanmar 4TNV98 engine?
A: The most reliable method is to cross-reference the part number stamped on your original piston or listed in your engine’s official service manual with our OEM number 129907-22090. You can also provide your engine’s full model and serial number for our technical team to verify.

Q: Is the piston pin included, and is it pre-fitted?
A> Yes, this listing is for the complete piston assembly with the piston pin included. The pin is supplied separately within the packaging to prevent damage during transit and must be installed during the engine rebuild process according to the manufacturer’s torque and procedure specifications.

Q: What documentation is provided to assure quality for international buyers?
A> We provide comprehensive support documentation for B2B clients, including a detailed machinery test report, a video record of the outgoing inspection, and all necessary commercial shipping documents (invoice, packing list, certificate of origin). This ensures transparency and simplifies customs clearance.

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 .