Product Overview

This is a premium piston ring set engineered for Yanmar 4TNV88 and 4TNE88 series diesel engines. Designed to meet or exceed OEM specifications, this critical component is essential for restoring engine compression, oil control, and overall performance. We supply these high-quality repair parts to a global network of distributors, workshops, and industrial operators across North America, Europe, the Middle East, Asia-Pacific, and Africa, ensuring reliable performance in construction, agriculture, power generation, and marine applications.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal sealing.
• Enhanced Durability: Made from high-grade materials to withstand high temperatures and pressures, ensuring long service life and reduced oil consumption.
• Restored Engine Performance: Proper installation restores cylinder compression, maximizes power output, and improves fuel efficiency.
• Comprehensive Compatibility: Direct replacement for specified Yanmar engine models, simplifying the parts sourcing process for technicians.
• Global Logistics Support: Packed for international shipment and supported by our experienced export team for smooth delivery to major industrial hubs and ports worldwide.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the following genuine Yanmar part numbers:

• Yanmar: 129001-22500 (YM129001-22500)
• Yanmar: 129005-22950 (YM129005-22950)

Always verify the part number from your original engine or service manual before ordering.

Compatibility

This piston ring set is specifically designed for Yanmar diesel engines. Primary compatible engine models include:

• Engine Series: Yanmar 4TNV88
• Engine Series: Yanmar 4TNE88

These engines are commonly found in a wide range of industrial and mobile equipment, including compactors, excavators, forklifts, agricultural tractors, generator sets, and small marine vessels.

Global Supply & Distribution

We are a professional supplier of heavy-duty engine components with extensive experience in international B2B trade. Our capabilities include:

• Worldwide Shipping: Reliable export to all major markets, including the USA, Canada, Germany, UAE, Australia, Japan, and South Africa.
• Fast Delivery Network: Efficient logistics to key global ports and industrial centers (e.g., Rotterdam, Los Angeles, Singapore, Dubai).
• Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) to ensure smooth customs clearance.
• Bulk & Wholesale Support: Dedicated support for container load (FCL) orders and established distributor partnerships.

Quality Assurance

We stand behind the quality and performance of our components.

• OEM Standards: Parts are manufactured to match original design specifications for fit, form, and function.
• Rigorous Testing: Products undergo machinery testing and video outgoing-inspection protocols to verify dimensional accuracy and material integrity.
• Warranty: Backed by a 6-month warranty against manufacturing defects from the date of purchase.
• Packaging: Securely packed to prevent damage during long-distance transport and storage.

FAQ

Q1: How do I confirm this piston ring set is the correct part for my Yanmar engine?
A1: The most reliable method is to cross-reference the part number stamped on your original rings or listed in your engine’s official service manual with our listed part numbers (129001-22500 or 129005-22950). Always verify your engine model (4TNV88 or 4TNE88) as the primary identifier.

Q2: Are these rings ready for installation, or is fitting required?
A2: These rings are supplied at the OEM standard size. However, professional engine rebuilding practice always requires checking the ring end-gap within the specific cylinder bore it will be used in, as per the engine manufacturer’s service specifications, to ensure proper thermal expansion clearance.

Q3: What documentation is provided with the shipment for international buyers?
A3> For all international B2B orders, we provide full export documentation, including a commercial invoice, detailed packing list, and a certificate of origin. This ensures transparency and facilitates efficient customs clearance in your country.

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 .