Description
Overview:
This Valve Intake is a genuine Yanmar part for the 4TNV84T-XWA diesel engine, OEM No. 129508-11100. It is a precision poppet valve made from heat-treated steel alloy for strength and long service life. The valve controls and seals the intake of air into the combustion chamber, supporting stable compression, clean combustion, and consistent power output. Designed as a direct replacement, it matches original specifications for accurate fit and reliable performance in Yanmar industrial engines found in compact construction equipment, generators, and plant machinery. Compatible with 4TNV84T-XWA and 4TNV84T-KWA variants, it helps restore correct airflow and valve seating during head repairs or overhauls, reducing the risk of misfiring, hard starting, and loss of efficiency. This is a Genuine Yanmar part for straightforward maintenance and dependable results.
Key Features:
- Genuine Yanmar OEM intake valve (OEM No. 129508-11100) for assured compatibility and quality
- Heat-treated steel alloy construction for durability and wear resistance under high temperatures
- Precision machined stem and valve face to promote proper sealing with the seat
- Direct-fit replacement for quick installation with standard workshop tools
- Supports efficient airflow and combustion for stable idle and strong performance
- Engineered for the 4TNV84T series to maintain correct clearances and timing
- Helps reduce blow-by and restore compression when replacing worn or pitted valves
- Suitable for professional workshops, fleet maintenance, and DIY users
Typical Applications:
Used during cylinder head rebuilds, top-end overhauls, or routine maintenance when intake valves are worn, burnt, or damaged. Common in Yanmar-powered compact excavators, site equipment, generators, and other plant where reliable cold starting, smooth running, and fuel efficiency are required.
Also known as:
Inlet valve, intake poppet valve, engine intake valve, inlet engine valve, air intake valve, admission valve.
Fits Models:
4TNV84T-KWA
4TNV84T-MWA
4TNV84T-XWA
Alternate Part Numbers:
129508-11100, 12950811100
Product Specifications
| L&S Part No. | 129508 11100 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Yanmar |
| OEM No. | 129508-11100 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Yanmar |
| Key Features | - Genuine Yanmar OEM intake valve, part number 129508-11100 - Heat-treated steel alloy for durability and wear resistance - Direct-fit replacement for Yanmar 4TNV84T series engines - Precision machined for proper sealing and airflow - Suitable for cylinder head rebuilds and maintenance tasks |
| Fits Models | 4TNV84T-XWA | 4TNV84T-KWA | 4TNV84T-MWA |
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