Engine operators and repair shops requiring a high-precision 129367-22090 or 12936722090 piston will find our OEM-standard components to be the ideal solution for Yanmar 3TNE84 and 4TNE84 series power units. This piston is engineered to restore compression and ensure thermal stability in demanding industrial and agricultural applications.
Directly supporting 3TNE84-G1A, 3TNE84-EYE, and 4TNE84-EB models, our stock is ready for immediate global dispatch to minimize your equipment downtime.
| Model NO. | Yanmar 3TNE84 / 4TNE84 Series | Part Number | 129367-22090 / 12936722090 |
|---|---|---|---|
| Product Name | Engine Piston | Type | Internal Combustion Engine Parts |
| Condition | Brand New, OEM Standard Replacement | MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch | Packaging | Industrial Export Packing |
| Application | Engine rebuild, overhaul, maintenance | Delivery | DHL, Fedex, EMS, UPS, Air/Sea |
| Payment Terms | T/T, Western Union, MoneyGram | ||
Choosing the right replacement part is critical for engine longevity. Below is a comparison highlighting our core purchasing advantages.
| Core Purchasing Point | Standard Market Replacement | Our Premium 129367-22090 Quality |
|---|---|---|
| 1. Material Integrity | Basic Aluminum Alloy | High-Silicon Eutectic Aluminum Alloy for Superior Heat Resistance |
| 2. Dimensional Precision | Standard Tolerance | Micron-level Precision Machining for Perfect Cylinder Fit |
| 3. Surface Treatment | Untreated or Simple Polish | Anodized Piston Crown to Prevent Thermal Cracking |
| 4. Groove Durability | Standard Machining | Reinforced Ring Grooves to prevent blow-by and oil consumption |
| 5. Pin Fitment | Loose or Tight Variances | Optimized Piston Pin Bore for smooth oscillation and reduced noise |
| 6. Life Expectancy | Short to Medium Term | Designed for Long-term heavy-duty operation in 3TNE84/4TNE84 Engines |
Not sure how this issue affects your equipment?
Our team helps operators achieve maximum uptime by providing technical clarity:
Identify potential risks during maintenance
Recommend suitable replacement parts if needed
Support both inspection advice and parts supply
Contact our experts via Email: [email protected]
Common signs include excessive blue smoke from the exhaust (oil burning), significant loss of power, and "blow-by" gases escaping through the oil filler cap. If you notice knocking sounds from the cylinder block, it may indicate piston slap or a broken ring land on your 12936722090 assembly.
While replacing a single 129367-22090 piston is possible for emergency repairs, we strongly recommend a full overhaul. Replacing all pistons along with new liner kits and gaskets ensures balanced compression across all cylinders, extending the overall life of your Yanmar power unit.
Answer: Our units feature an OEM-standard tri-metal structure and are trusted by repair shops & equipment fleets worldwide for their durability and exact fitment.
We specialize in providing high-performance engine components for global brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our inventory covers everything from complete engine assemblies to internal components.
Stay updated with our latest stock and technical tips on our social media:
Follow Us on FacebookClick the button below to visit our Facebook profile and stay updated with the latest news and updates!
Visit Facebook Profile
English
English