Description
Overview:
This Exhaust Valve is a genuine Kubota engine component for compact construction machinery. Built from heat- and wear‐resistant alloy steel with a precision‐ground valve face and stem, it seals the exhaust port and controls the flow of hot gases out of the combustion chamber. Correct sealing preserves compression, protects the seat, and helps the engine run smoothly under heavy load. Supplied to Kubota's OEM specification under No. 12658 13120, it is a direct replacement for the original valve in machines such as the KC50 tracked dumper and ARX2500. Its robust construction withstands repeated thermal cycles and high exhaust temperatures typical of small diesel engines, supporting reliable performance, easier tuning, and long service life when paired with sound guides, seats, and springs.
Key Features:
- Genuine Kubota part for assured fit, performance, and reliability
- OEM reference: 12658 13120 (also 1265813120) for straightforward identification
- Heat‐resistant alloy steel for durability at sustained high exhaust temperatures
- Precision‐ground face and stem promote accurate seating and gas sealing
- Direct-fit replacement that matches original dimensions and geometry
- Helps maintain compression, power output, and fuel efficiency
- Supports smoother running and reduced risk of burnt or pitted valves
- Suitable for routine maintenance or top‐end rebuilds on supported models
- Compatible with Kubota ARX2500, AV2500, and KC50 applications
- Built to Kubota specifications for dependable operation in demanding site conditions
Typical Applications:
Used during scheduled engine maintenance, top‐end overhauls, or repairs when exhaust valves show wear, pitting, or burning. Common in tracked dumpers and compaction equipment operating for long hours under load. Helps restore proper exhaust flow, reduce blow‐by at the exhaust port, stabilise idle, and maintain starting performance in Kubota diesel engines fitted to machines such as the KC50 and similar compact construction units.
Also known as:
Engine exhaust valve, exhaust poppet valve, Kubota diesel exhaust valve, outlet valve, exhaust-side engine valve for Kubota compact equipment, KC50 exhaust valve, ARX/AV series exhaust valve, Kubota engine valve (exhaust).
Fits Models:
ARX2500, AV2500, KC50
Alternate Part Numbers:
1265813120, 12658 13120
Product Specifications
| L&S Part No. | 12658 13120 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kubota |
| OEM No. | 12658 13120 |
| Unit of Sale | 1 |
| Machine Type | Tracked Dumpers |
| Fits Brands | Kubota |
| Key Features | - Genuine Kubota part ensures fit and reliability - OEM reference: 12658 13120 for easy identification - Heat-resistant alloy steel for high temperature durability - Precision-ground face and stem for accurate gas sealing - Compatible with Kubota ARX2500, AV2500, KC50 models |
| Fits Models | KC50 | KC51 |
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