4TNE88 Idler Gear 129150-14100 for Yanmar Engine Parts

Product Details

Product Overview

This high-quality Idler Gear (Part Number: 129150-14100) is specifically designed for the Yanmar 4TNE88 diesel engine. As a critical component of the engine’s timing gear train, this idler gear ensures precise synchronization between the crankshaft and camshaft, maintaining optimal engine timing and performance.

Manufactured to OEM specifications, this idler gear provides a direct replacement for the original Yanmar part. It is suitable for a wide range of heavy equipment applications where the 4TNE88 engine is commonly used, including construction machinery, agricultural tractors, industrial generators, and marine propulsion systems.

For B2B buyers and workshop professionals, this part offers a reliable, cost-effective solution for engine overhauls and repairs, helping to minimize downtime and restore engine efficiency.

Key Features & Benefits

• Precision Engineering: Machined to exact OEM dimensions (129150-14100) for perfect fitment and smooth gear meshing with minimal backlash.
• Durable Construction: Made from high-strength alloy steel with heat-treated teeth for superior wear resistance and long service life under heavy loads.
• Direct Replacement: Drop-in fit for Yanmar 4TNE88 engines; no modifications required, reducing installation time and labor costs.
• Enhanced Reliability: Rigorously tested for tooth profile, hardness, and dimensional accuracy to ensure consistent performance in demanding environments.
• Versatile Application: Compatible with various equipment types including excavators, tractors, generators, and marine engines powered by the 4TNE88 platform.
• Cost-Effective Solution: Provides significant savings compared to genuine Yanmar parts while maintaining OEM quality standards.
• Comprehensive Support: Backed by a 6-month warranty and online technical support for installation and troubleshooting.

Technical Specifications

OEM Cross-Reference

This idler gear is a direct replacement for the following OEM part numbers:

• Yanmar: 129150-14100
• : 4TNE88-Idler Gear

Note: Always verify your engine’s part number before ordering. Cross-reference with your existing part or consult your equipment manual.

Compatibility

This idler gear is commonly used for the following engine and equipment applications:

• Engine: Yanmar 4TNE88 (4-cylinder, 2.2L diesel engine)
• Applications:
  • Construction Equipment (excavators, backhoe loaders, mini excavators)
  • Agricultural Machinery (tractors, harvesters, tillers)
  • Industrial Equipment (generators, compressors, pumps)
  • Marine Propulsion Systems (small to medium vessels)
  • Material Handling (forklifts, telehandlers)

Important: This part is designed specifically for the 4TNE88 engine variant. It may not be compatible with 4TNE84, 4TNE98, or other Yanmar engine models. Always verify engine model casting numbers before purchase.

Global Supply & Distribution

We offer worldwide shipping to meet the needs of international B2B buyers. Our distribution network covers all major markets:

• North America: Fast delivery to ports in Los Angeles, Houston, New York, and Toronto.
• Europe: Regular shipments to Rotterdam, Hamburg, Antwerp, and Felixstowe.
• Asia-Pacific: Direct shipping to Singapore, Tokyo, Sydney, and Shanghai.
• Middle East & Africa: Service to Dubai, Jeddah, Durban, and Lagos.
• Latin America: Deliveries to Santos, Buenos Aires, and Callao.

We have extensive export experience and comply with international trade regulations. Bulk orders are welcome with competitive pricing and dedicated logistics support. Contact us for customized shipping solutions and lead time estimates for your region.

Quality Assurance

Every idler gear undergoes strict quality control procedures to ensure reliability and performance:

• Manufacturing Standards: Produced in ISO-certified facilities with advanced CNC machining and heat treatment processes.
• Dimensional Inspection: Each gear is measured for tooth profile, pitch diameter, and bore tolerance using precision instruments.
• Material Testing: Chemical composition and hardness tests verify the use of premium alloy steel.
• Warranty: 6-month warranty against manufacturing defects, with online support available for claims.
• Traceability: Each part is batch-coded for full traceability back to production records.

FAQ

Q1: How can I confirm this idler gear fits my Yanmar 4TNE88 engine?
A: Check the part number stamped on your existing idler gear. If it matches 129150-14100, this is a direct replacement. Additionally, verify your engine model is 4TNE88 by checking the engine nameplate or casting number. If you have any doubts, send us a photo of your old part for cross-verification.

Q2: What are the signs that my idler gear needs replacement?
A: Common symptoms include unusual knocking or rattling noises from the timing gear area, rough engine operation, difficulty starting, or visible wear on the gear teeth (chipping, pitting, or excessive play). If you are performing a full engine overhaul, replacing the idler gear is recommended as preventive maintenance.

Q3: Is any special installation procedure required for this gear?
A: Installation requires mechanical knowledge of diesel engine timing systems. You must ensure the timing marks are aligned correctly when installing the gear to avoid valve-to-piston interference. We recommend using a service manual for the 4TNE88 engine and checking the gear backlash according to Yanmar specifications (typically 0.05-0.15 mm). For professional workshops, standard tools and a torque wrench are sufficient.