Description
Overview:
The Piston Ring Set for the Yanmar 4TNV98 diesel engine is a precision-made replacement kit that restores cylinder sealing, compression, and oil control. Manufactured from high-strength ferrous alloys with wear-resistant surfaces, the rings are designed to withstand the heat and pressures of diesel operation. This set replaces OEM No. 129003-22050 and is suitable for compact construction and agricultural machinery powered by the 4TNV98, such as mini excavators and generators. The 4TNV98 is a 98 mm (3.86 in) bore class engine, and this ring set is made to suit that specification. This is a Non Genuine aftermarket replacement part, offering reliable performance when installed with correct clearances and orientation during an engine service or rebuild.
Key Features:
- Non Genuine aftermarket replacement for OEM No. 129003-22050
- Made to suit the Yanmar 4TNV98 (98 mm / 3.86 in bore class)
- Helps restore compression and reduce oil consumption and blow-by
- Durable, wear-resistant materials for demanding diesel service
- Precision ring profiles and controlled wall tension for proper bedding-in
- Oil control ring design promotes efficient oil scraping and stability
- Heat and corrosion resistance for long service life
- Compatible with routine overhaul practices; check ring end gaps and groove clearance
- Straightforward fit for competent mechanics; observe “TOP” marks and ring orientation
- Ideal for preventative maintenance and full engine rebuilds on site or in the workshop
Typical Applications:
Used during engine overhauls and repairs on equipment powered by Yanmar 4TNV98 engines, including mini excavators, skid steers, dumpers, compact tractors, compressors, pumps, and generator sets. Suitable for restoring performance where low compression, high oil consumption, or smoke indicates worn rings.
Also known as:
Piston rings, ring pack, compression rings, oil control ring set, piston ring kit, 4TNV98 ring set, Yanmar 98 mm rings, diesel engine ring set.
Fits Models:
4TNV98
Alternate Part Numbers:
129003-22050
Product Specifications
| L&S Part No. | 996 998 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Yanmar |
| Fits Models | 4TNV98-VTBZ |
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