Description
Overview:
This Intake Valve is a genuine Kubota part for the ARX2500 and AV2500 generator engines, supplied to restore and maintain correct engine breathing. Made from durable, heat‐resistant steel with a machined stem and valve head, it meters fresh air into the combustion chamber and seals tightly against the seat to preserve compression. Accurate air control supports clean combustion, easier starting, steady power output and fuel efficiency. As a direct replacement for OEM No. E3131-13112 (also referenced as E3131 13112), it is designed to fit and function exactly like the original component. Suitable for routine servicing or engine repair, this valve helps keep site, standby and portable generators running reliably in demanding conditions.
Key Features:
- Genuine Kubota part for assured fit, materials and compatibility with ARX2500 and AV2500
- Direct replacement for OEM No. E3131-13112 (also referenced as E3131 13112)
- Heat‐resistant steel construction for durability under high temperature and load
- Precision-ground stem and seating face for reliable sealing and restored compression
- Maintains correct intake airflow for efficient combustion and stable generator output
- Manufactured to OEM tolerances for straightforward installation with no modification
- Compatible with existing valve guides, springs and retainers used in these engines
- Suitable for preventative maintenance, rebuilds and corrective repairs to address wear
Typical Applications:
Used during engine overhauls and scheduled maintenance on Kubota ARX2500 and AV2500 generators found on construction sites, farms, hire fleets and facilities. Replaces worn, pitted or bent intake valves to recover compression, improve starting and smooth running, and help keep voltage output stable when powering tools, lighting, pumps and backup systems.
Also known as:
Inlet valve, intake poppet valve, admission valve, engine air inlet valve, cylinder head intake valve, generator engine intake valve, intake side valve, air intake valve for petrol/diesel small engines.
Fits Models:
ARX2500, AV2500
Alternate Part Numbers:
E3131-1311-2, E3131-13112, E313113112
Product Specifications
| L&S Part No. | E3131 13112 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kubota |
| OEM No. | E3131 13112 |
| Unit of Sale | 1 |
| Machine Type | Generators |
| Fits Brands | Kubota |
| Key Features | - Genuine Kubota part for ARX2500 and AV2500 engines - Direct replacement for OEM No. E3131-13112 - Heat-resistant steel for durability under high temperatures - Precision-ground stem ensures reliable sealing and compression - Compatible with existing valve guides and retainers |
| Fits Models | KC51 |


