Description
Overview:
This genuine Kubota water separator is designed to remove water contamination from diesel fuel in mini excavators, helping to protect injectors, pumps and the wider fuel system. Built from durable, corrosion‐resistant materials for everyday site use, it keeps fuel clean to support reliable starts and steady engine performance. The unit is a direct replacement for OEM No. RA238-51400 and is commonly fitted to Kubota compact excavators such as the U50-5 and U30-5. By reducing moisture and debris reaching sensitive components, it helps limit wear, reduces unplanned downtime, and supports consistent operation during regular maintenance intervals. Suitable for Kubota KX and U series machines, it is a practical service part for owners, hire fleets and workshops looking for straightforward, correct‐fit replacements.
Key Features:
- Genuine Kubota part for assured compatibility and performance
- Separates water from diesel to protect pumps, injectors and filters
- Robust construction for long service life in harsh site conditions
- Direct replacement for OEM No. RA238-51400 to simplify sourcing
- Helps reduce corrosion, poor running and cold‐start issues
- Compact in-line design for straightforward fitting and servicing
- Supports cleaner fuel supply for more consistent engine operation
- Suitable for regular maintenance schedules to minimise downtime
Typical Applications:
Used in the low‐pressure side of the fuel system on Kubota mini excavators to remove water and particulate before it reaches the engine. Ideal during scheduled servicing, fuel system repairs, or when machines operate in wet, dusty or variable fuel conditions. Helps maintain performance on construction sites, landscaping projects, utilities work and hire fleet operations.
Also known as:
Diesel water trap, fuel/water separator assembly, fuel sedimenter, water sedimenter, diesel fuel de‐waterer, fuel pre‐filter with water separation.
Fits Models:
KX121-3s, KX1213S, KX91-3a2, KX913A2, U15, U17, U25S, U30-3a2, U30-5, U303A2, U305, U35S, U45S, U50-5, U505
Alternate Part Numbers:
RA238-51400, RA23851400, RA238 51400
Product Specifications
| L&S Part No. | RA238 51400 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kubota |
| OEM No. | RA238 51400 |
| Unit of Sale | 1 |
| Applications | KX121-3s, KX1213S, KX91-3a2, KX913A2, U15, U17, U25S, U30-3a2, U30-5, U303A2, U305, U35S, U45S, U50-5, U505 |
| Machine Type | Excavators |
| Fits Brands | Kubota |
| Fits Models | U30-5 | U30-3a2 | KX91-3a2 | KX121-3s | U15 | U17 | U35S | U45S | U25S |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
