Fuel Water Separator 131-1812 for Caterpillar Skid Steers, Backhoe Loaders & Wheel Loaders
131-1812 fuel water separator for Caterpillar skid steers, backhoe loaders, and wheel loaders. OEM cross-reference verified. Orders from IXIN Filter.
Description
This 131-1812 fuel water separator is a standard-efficiency spin-on filter engineered as a direct replacement for the Caterpillar 131-1812, one of the most widely used fuel/water separators across CAT’s skid steer, backhoe loader, and wheel loader lineup. It’s designed to remove water and fine contaminants from diesel fuel, extending the life of the secondary fuel filter and protecting precision fuel injectors.
Product Overview
The 131-1812 fuel water separator uses cellulose filter media designed to eliminate essentially all free water and the majority of emulsified water from diesel fuel, along with fine particulate contamination. As explained in this overview of fuel water separator function, water in diesel fuel can cause corrosion, microbial growth, and injector damage if it isn’t removed before reaching the engine. Construction features supporting durability include a nylon center tube to help prevent metal contamination and molded end caps designed to prevent leaks, with pleat spacing supported to resist bunching and maintain filtration surface area. Each unit is dimensionally verified against OEM measurements and tested for filtration performance before shipment — not just matched by part number.
Fits the Following Caterpillar Models & Engines
| Category | Models |
|---|---|
| Skid Steer Loaders | CAT 216, 226, 228, 236, 242, 246, 247, 248, 252, 257, 262, 267, 277 |
| Integrated Toolcarriers | CAT IT14G, IT28G |
| Wheel Loaders | CAT 914G, 924G, 924GZ, 928G, 930G |
| Backhoe Loaders | CAT 416B, 416C, 416D, 420D, 422E, 424D, 426B, 426C, 428B, 428C, 428D, 428E, 430D, 432D, 432E, 434E, 436B, 436C, 438B, 438C, 438D, 442D, 442E, 444E |
| Engines | Caterpillar 3034, 3054 |
Always confirm your machine’s serial number range against the OEM cross-reference before ordering, as fuel system filtration specifications can vary across production years within the same model.
OEM Cross-Reference Numbers
| Brand | Number |
|---|---|
| Caterpillar | 131-1812, 1311812 |
| Baldwin | BF1238, BF7649, BF7672, BF7672D |
| Donaldson | P550398, P550503, P550772, P551427 |
| Fleetguard | FS19554, FS19589 |
| Bosch | F026402055 |
| Mann | WK8108, WK8110 |
| John Deere | RE53729, RE537926, RE537927, RE537928, RE537929, RE537930, RE537931, RE538101, RE62421 |
| Fram | PS7409, PS7409A, PS8533 |
| Napa | 3638 |
| SF Schupp | SK3429 |
| Hengst | H291WK |
Key Features
- Standard-efficiency water separation, removing essentially all free water and the majority of emulsified water from diesel fuel
- Nylon center tube to help prevent metal contamination
- Molded end caps designed to prevent leaks
- Dimensionally verified against OEM specifications, not just cross-reference number matching
- Consistent batch quality control, with raw material and pre-shipment testing on every production run
- Broad application coverage, spanning CAT skid steers, integrated toolcarriers, wheel loaders, and backhoe loaders
Specifications (Publicly Referenced Dimensions)
Dimensions below are compiled from publicly available cross-reference filter databases and were reasonably consistent across sources. Please verify against your machine’s actual filter housing or OEM documentation before bulk ordering.
| Spec | Detail |
|---|---|
| Height | 151-154 mm |
| Outer Diameter (Max) | 83 mm |
| Outer Diameter (Min) | 69 mm |
| Inner Diameter / Depth (Max) | 17 mm |
| Filter Type | Spin-on fuel/water separator |
| Filter Media | Cellulose, standard efficiency |
| Application | Skid steers, integrated toolcarriers, wheel loaders, backhoe loaders |
| Packaging Options | Standard retail box, bulk carton, or private-label packaging available |
Why Source This Fuel Water Separator from IXIN Filter
We manufacture this 131-1812 fuel water separator in our own production facility, with quality control checkpoints from raw material inspection through final pre-shipment testing. If you’re sourcing for a distribution business or fleet, we can provide:
- Sample units for independent testing before a bulk order
- Documentation on OEM cross-reference verification
- Flexible MOQ and private-label packaging options
- Consistent batch-to-batch quality for repeat orders
Frequently Asked Questions
Does this filter remove water from diesel fuel? Yes. The 131-1812 is designed to remove essentially all free water and the majority of emulsified water, along with fine contaminants, before fuel reaches the secondary filter and injection system.
What equipment uses the 131-1812 fuel water separator? It’s used across CAT’s skid steer loader lineup (216 through 277), several integrated toolcarrier and wheel loader models, and a wide range of B/C/D/E-series backhoe loaders.
Will this fit all the models listed? It fits the equipment listed above, but fuel system configurations can vary by production year and serial number range. We recommend confirming your machine’s specific configuration before ordering, especially for bulk purchases.
Do you offer samples before a bulk order? Yes. We recommend requesting a sample for independent testing before committing to a bulk order, especially for first-time buyers.
Ready to order or request a sample? Contact IXIN Filter for pricing, MOQ, and lead time on the 131-1812 fuel water separator.
