Direct supplier of 129004-22080 (12900422080) engine pistons. Optimized for Yanmar 3D84 and 4D84 series diesel engines. OEM-standard precision for immediate overhaul requirements.
| Part Number | 129004-22080 / 12900422080 | Condition | Brand New / OEM Standard |
| Engine Model | Yanmar 3D84 / 4D84 | MOQ | 1 Piece |
| Application | Overhaul / Rebuild | Stock | In Stock / Fast Dispatch |
| Shipping | DHL / Fedex / UPS / Sea | Payment | T/T, Western Union, MG |
| Core Point | Our Supply Solution | Generic Alternatives |
|---|---|---|
| 1. Material | High-temp Tri-metal structure | Basic cast aluminum |
| 2. Accuracy | Strict 3D84/4D84 CNC tolerances | Approximate fitment |
| 3. Reliability | Trusted by fleet repair shops | Short service life |
| 4. Coating | Anti-friction surface treatment | No surface protection |
| 5. Lead Time | Same-day dispatch available | 7-14 days waiting time |
| 6. Support | Full overhaul technical data | Sales only |
Experiencing engine blow-by or power loss? Our technical team assists operators to:
✔ Identify cylinder liner and piston ring wear patterns.
✔ Match exact 12900422080 specs to your engine serial number.
✔ Support inspection advice and full parts supply for 4D84 rebuilds.
Q: Why choose this specific 129004-22080 Piston?
A: It features an OEM-standard tri-metal structure, ensuring thermal stability under heavy load. Trusted by professional repair shops worldwide.
Q: How to solve overheating in 4D84 engines?
A: Often caused by cooling failure or piston crown carbon buildup. Replacing with a new 129004-22080 piston during overhaul restores compression and prevents future scuffing.
Specializing in engine assemblies and parts for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai.
Our core range: Cylinder liners, pistons, piston rings, main bearings, con-rod bearings, thrust washers, overhaul kits, fuel pumps, injectors, crankshafts, turbochargers, water pumps, oil pumps, cylinder blocks, and heads.
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