
Product Overview
This high-precision eccentric shaft is engineered as a direct replacement for Yanmar 3TNA68 diesel engines. Designed for durability and exact fitment, it is a critical component for maintaining optimal engine timing and valve operation in heavy machinery. We supply this part globally, with significant demand from construction, logistics, and industrial sectors across North America, Europe, the Middle East, and Asia-Pacific markets.
Key Features & Benefits
- OEM-Spec Precision: Manufactured to exact original equipment dimensions (OEM Size) for a guaranteed fit and seamless integration into your Yanmar 3TNA68 engine.
- Enhanced Durability: Crafted from high-grade materials to withstand the high-stress environment of diesel engines, ensuring long service life and reliable performance.
- Optimal Engine Performance: Precisely machined to maintain correct valve timing, which is crucial for engine power, fuel efficiency, and reduced emissions.
- Rigorous Quality Control: Each shaft undergoes thorough inspection, supported by machinery test reports and video outgoing-inspection documentation for your assurance.
- Cost-Effective Solution: Provides the performance and reliability of OEM parts at a competitive price point, offering excellent value for fleet managers and equipment operators.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Eccentric Shaft |
| Compatible Engine Model | Yanmar 3TNA68 |
| Engine Type | Diesel |
| Size / Dimensions | OEM Standard Size |
| Approximate Weight | 5 kg |
| Warranty | 6 Months |
| Quality Documentation | Machinery Test Report, Video Outgoing-Inspection Provided |
| Place of Origin | Guangdong & Guizhou, China |
| Selling Unit | Single Item |
OEM Cross-Reference
This part is manufactured as a direct replacement for the original Yanmar eccentric shaft used in the 3TNA68 engine series. For confirmation, please cross-reference with your engine’s specific build sheet or consult our technical team with your existing part number.
Compatibility
Primary Engine Application:
- Yanmar 3TNA68 Diesel Engine
Typical Vehicle & Machinery Applications:
- Excavators
- Trucks
- Forklifts
- Bulldozers
- Buses
- Loaders
- And other industrial equipment powered by the Yanmar 3TNA68 engine.
Global Supply & Distribution
We are a seasoned exporter specializing in heavy-duty engine components for the international B2B market. Our logistics network ensures reliable shipping to key industrial regions worldwide.
- Worldwide Shipping: We export to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America.
- Efficient Logistics: We facilitate fast delivery to major global ports and inland freight hubs, supporting both sea and air freight options to meet your project timelines.
- Export Compliance: All shipments are prepared with complete commercial documentation (invoice, packing list, certificate of origin) to ensure smooth customs clearance.
Quality Assurance
Our commitment to quality ensures you receive a reliable, performance-ready component.
- Manufacturing Standards: Produced in ISO-certified facilities using precision CNC machining and strict quality control protocols.
- Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects.
- Verifiable Testing: Every batch is subject to material and dimensional inspections. Documentation, including test reports and pre-shipment inspection videos, is available to verify quality before dispatch.
FAQ
Q: How can I confirm this eccentric shaft will fit my specific Yanmar 3TNA68 engine?
A: This shaft is manufactured to the OEM specification for the 3TNA68 model. For absolute certainty, we recommend comparing the dimensions and configuration to your original part or providing us with any casting/part numbers from your failed component. Our technical team can assist with verification.
Q: What are the critical steps during installation to ensure proper function?
A: Proper installation is key. Ensure the engine timing is correctly set before installation. The shaft and its bearing journals must be thoroughly cleaned and lubricated with the recommended engine oil upon assembly. Always torque mounting bolts to the manufacturer’s specified values in the correct sequence to prevent misalignment or binding.
Q: Do you support bulk orders for fleet maintenance, and what are the lead times?
A: Yes, we specialize in supplying bulk quantities for fleet and workshop needs. Standard lead times apply, but we can often expedite production for larger orders. Contact our sales team directly with your quantity requirements and destination port for a precise quote and delivery schedule.
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 .