Caterpillar 1R0774, direct aftermarket replacement. This filter is an aftermarket hydraulic filter designed to replace filters from leading brands such as Baldwin, Donaldson, and Caterpillar. It uses impregnated paper media with a 25 µm filtration rating, effectively capturing contaminants in hydraulic systems. With a collapse pressure of 5 bar and an Out-In flow direction, this filter is built to the original dimensions and ratings for reliable performance. Its dimensions include a total height of 280 mm, largest outer diameter of 130 mm, and inner diameters of 85 mm and 79 mm, ensuring a proper fit in compatible housings. As a cost-effective alternative, it offers the same quality and fit without the premium price tag.
Technical properties & cross references
Specifications
| Collapse pressure |
5 bar (73 PSI) |
| Filtration Media |
Impregnated Paper 25 µm |
| Media type |
Impregnated Paper |
| Filtration Rating |
25 µm |
| Flow direction |
Out-In |
| Total Height |
280 mm (11 1/32") |
| Largest Inner Diameter |
85 mm (3 11/32") |
| Smallest Inner Diameter |
79 mm (3 1/8") |
| Largest Outer Diameter |
130 mm (5 1/8") |
| Stat. HS-Code |
84149000 |
| Country of Manufacture |
China |
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| Filtration Point |
USD 11.82 |
11 Oct 2026 |
| Oxfil |
USD 25.78 |
16 Oct 2026 |
| FilterFinder Online |
USD 27.00 |
11 Oct 2026 |
| G&T Engine Parts |
USD 29.22 |
11 Oct 2026 |
| Propel Parts |
USD 34.24 |
11 Oct 2026 |
| Spare Part Mart |
USD 9.46 |
Today |
Our price of USD 9.46 is 20% to 72% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Use cases & applications
Heavy-Duty Construction Sites
In dusty construction environments, the 25 µm impregnated paper media captures fine particles that can cause hydraulic system wear. This filter helps maintain fluid cleanliness, reducing downtime and extending component life.
Continuous-Duty Industrial Operations
For machinery running 24/7, the 5 bar collapse pressure ensures the filter withstands pressure spikes during continuous operation. This reliability prevents bypass valve opening and protects sensitive hydraulic components.
Fleet Maintenance Consolidation
Fleet operators servicing multiple Caterpillar machines can standardize on this single filter cross-referenced across many brands. This simplifies inventory management and reduces the risk of stocking the wrong part.
Remote or Harsh Environments
In remote mining or agricultural settings, the robust construction of this filter handles high contamination loads. Its Out-In flow design allows efficient particle capture, even in cold or humid conditions.
Frequently asked questions
How can I confirm this filter fits my equipment?
Check your current filter's part number against the cross-references listed for brands like Baldwin, Donaldson, and Caterpillar. If your filter matches one of those, this filter is a direct replacement. Always verify dimensions (280 mm height, 130 mm OD) against your housing.
What is the filtration rating and media type?
This filter uses impregnated paper media with a 25 µm filtration rating. It is designed for hydraulic systems requiring moderate filtration efficiency to protect pumps and valves.
What are the thread and seal dimensions?
The filter has a largest inner diameter of 85 mm and a smallest inner diameter of 79 mm. The largest outer diameter is 130 mm. Thread specifics are not provided, so consult your housing's thread size for compatibility.
Is this filter genuine OEM or aftermarket?
This is an aftermarket replacement, not genuine OEM. It is built to the original dimensions and ratings for fit and function, offering a cost-effective alternative to branded filters.
How do I install this filter?
Installation is straightforward: remove the old filter, clean the mounting surface, lubricate the gasket with clean oil, and hand-tighten the new filter until the gasket contacts, then turn an additional three-quarters turn. Do not overtighten.
What delivery and guarantee options are available?
We offer worldwide shipping with tracking. Your purchase is backed by a 30-day money-back guarantee and our price-beat guarantee. Contact us if you find a lower price on an identical product.