
Product Overview
This high-quality Idler Gear (Part Number: 129150-14100) is engineered as a direct replacement for Yanmar 4TNE88 diesel engines. Designed for durability and precise fitment, it is an essential component for maintaining optimal engine timing and performance. We supply this part globally to major markets including North America, Europe, the Asia-Pacific region, and the Middle East, supporting the construction, industrial, agricultural, marine, and power generation sectors.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications (OEM Size) for a perfect fit and reliable operation within the engine’s timing system.
- Enhanced Durability: Made from high-grade materials to withstand the stresses of diesel engine operation, ensuring long service life and reduced downtime.
- Guaranteed Performance: Restores original engine timing accuracy, contributing to smooth engine running, optimal fuel efficiency, and consistent power output.
- Rigorous Quality Control: Each part undergoes thorough inspection, supported by machinery test reports and video outgoing-inspection documentation.
- Global Compliance: Packaged and documented for seamless international shipping and customs clearance to destinations worldwide.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 129150-14100 |
| OEM Number | 129150-14100 |
| Engine Model | Yanmar 4TNE88 |
| Part Type | Idler Gear (Timing Gear) |
| Engine Type | Diesel |
| Weight | Approximately 1 kg |
| Size | OEM Standard Size |
| Packing | Plastic Bag, Box, Carton (Export Ready) |
| Place of Origin | Guangdong, China |
OEM Cross-Reference
This aftermarket idler gear is a direct replacement for the following OEM part number:
- Yanmar: 129150-14100
Note: OEM service for custom specifications is available upon request.
Compatibility
This idler gear is specifically designed for use in the following application:
- Primary Engine Model: Yanmar 4TNE88 Diesel Engine.
- Typical Applications: This engine model is commonly found in a wide range of machinery, including:
- Construction Equipment (Excavators, Loaders)
- Industrial Machinery & Pumps
- Agricultural Tractors and Implements
- Power Generation Sets (Gensets)
- Marine Auxiliary Engines
- Material Handling Equipment
Important: Always verify your engine’s model and existing part number before purchase to ensure correct fitment.
Global Supply & Distribution
We are a trusted B2B supplier with extensive experience in the global automotive and machinery parts trade. Our streamlined logistics ensure reliable delivery to key industrial hubs worldwide.
- Worldwide Shipping: We export to all major continents, including North America (USA, Canada), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Japan, Singapore), and the Middle East (UAE, Saudi Arabia).
- Fast Delivery Network: Efficient shipping to major ports and inland logistics centers via air and sea freight.
- Export Expertise: All documentation (commercial invoice, packing list, certificate of origin) is provided for smooth customs clearance in compliance with international trade regulations.
Quality Assurance
We stand behind the quality and reliability of every part we supply.
- Manufacturing Standard: Produced in ISO-certified facilities using precision machining to meet or exceed original specifications.
- Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects.
- Stringent Testing: Components are subject to dimensional checks, material analysis, and functional validation. Machinery test reports are available.
- Post-Warranty Support: Continued online technical support is available after the warranty period to assist with installation or application queries.
FAQ
Q1: How can I confirm this idler gear is compatible with my specific Yanmar 4TNE88 engine?
A: The surest method is to cross-reference the part number. Locate the idler gear currently installed in your engine and match its stamped part number to our listed OEM number (129150-14100). You can also verify your engine’s model plate, which should clearly state “4TNE88”.
Q2: What is included with the part, and is it ready for installation?
A: The part is supplied as a single item, packaged securely in an export-ready carton. It is a direct replacement gear and is ready for installation following proper engine disassembly and timing procedure. No additional hardware or kits are included unless specified.
Q3: What should I do if I encounter an issue during or after installation?
A: We provide comprehensive after-sales support. Within the 6-month warranty period, contact us with your order details and a description (preferably with photos/video) of the issue for a warranty claim. For technical guidance on installation at any time, our online support team is available to assist.
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 .