| Hydraulic Filter Wix 51494 11448509 11036607 110366077Parameter: | |
| Part Number | Wix 51494 11448509 11036607 110366077 |
| Brand | Tamfiney |
| Weight | 1084 g |
| Height | 144 mm |
| Outer Diameter | 95 mm |
| Inner Diameter/ Thread Size | 1 3/8-12 UN |
| Minimum Order | 100 PCS |
| Place of Region: | Zhejiang, China |
| Payment Terms: | T/T |
| Price Terms: | FOB |
| Lead Time: | 30 to 50 days based on order quantities |
| Market Type: | After Market |
| Current Export Market: | Southeast Asian,North America, South America, Western Europe, Eastern Europe, Africa, Oceania |
Applications:
VOLVO A 25 DA 25 DA 25 EA 25 FA 25 GA 30 C 6X6A 30 DA 30 EA 30 EA 30 FA 30 GA 35 BA 35 CA 35 D 6X6A 35 EA 35 EA 35 FA 35 F-FSA 35 GA 35 G-FSA 40A 40 D 6X6A 40 EA 40 FA 40 F-FSA 40 GA 40 G-FSA 60 FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700FH II 16-700
Premium Wix 51494 Spin-On Hydraulic Filter 11448509 11036607 110366077
Q: What is a hydraulic spin-on filter?
Hydraulic spin on filter refers to a type of integral spin-on hydraulic filter, in which the filter cartridge is integrated with the metal housing, and installed directly on the hydraulic system base through threaded rotation, without the need to disassemble the housing for quick replacement.
Core Definition and Characteristics
- Structural form: The filter element, end cap, and seal are pre installed inside the can shaped housing, forming an inseparable "can type" assembly;
- Installation method: manually or manually screw in the threaded filter head, similar to an oil filter, without opening the valve group or emptying the pipeline;
- Main function: Filter metal shavings, dust, oxidized gum and other pollutants in hydraulic oil, protect pumps, valves, and actuators from wear or jamming;
- Typical applications: construction machinery (excavators, loaders), mobile hydraulic equipment, industrial power transmission systems, and low and medium pressure fixed devices.
Key advantages and parameters
- Convenient maintenance: The replacement time is reduced by about 50% compared to cartridge filters. Only the old part needs to be unscrewed. The new part needs to be screwed on after the pump is turned off to release pressure;
- Pressure rating: The common working pressure is ≤ 17.2 bar (250 psi), and some heavy-duty models can reach 25-30 bar. The burst pressure is usually ≥ 2.5 times the working pressure;
- Filtration accuracy: The medium is mostly synthetic fiber paper, with an efficiency of over 99% (β ≥ 1000) and a particle size range of 5-40 μ m interception;
- Safety design: It is often equipped with a bypass valve (to prevent blockage and pressure buildup), and an optional pressure difference indicator (to indicate the timing of replacement).
Q: How do you cross-reference a spin-on hydraulic filter?
NEW HOLLAND-87010592 ,87430661 ; PARKER-944027Q ; DONALDSON P167590 ,P573994 P173205 P163322 P163322 P166613 P170371 P170950 P171298 P569401 P762797 P763535 THERMO KING-3D96147G01 AGCO WR136641
Q: What is the bypass valve on a spin-on hydraulic filter?
The bypass valve on the rotary hydraulic filter is a pressure sensitive one-way safety valve built into the filter housing. When the filter element is clogged or the oil viscosity is too high, causing the inlet and outlet pressure difference to exceed the set value, it automatically opens, forcing the oil to bypass the filter element, and flow directly to prevent system interruption or pump suction damage, at the cost of temporarily losing the filtering function.
Core Definition and Mechanism
This is a normally closed mechanical one-way valve. It sits fully integrated inside a rotary filter. Next, it uses a simple spring and valve core structure.
It triggers when the filter element gets fully clogged. It also responds to overly thick cold-start oil. The pressure difference across the filter then spikes. This value tops the pre-set opening pressure threshold. Host factories or filter specs define this exact number.
Right then, the valve pops open without delay. Unfiltered oil flows straight to the system’s main oil passage. It keeps hydraulic parts like cylinders and motors fed. It stops dry running and cavitation from happening.
Later, the pressure difference drops back to normal. This happens after filter replacement or oil warms up. Spring force pushes the valve shut once more. Full, proper oil filtration resumes right away.
Meaning and Balance of Existence
- Primary objective: To prioritize addressing the risk of "mechanical wear/system paralysis caused by oil shortage" over the risk of "contamination caused by unfiltered oil", based on the principle of prioritizing the lesser of the two harms.
- Warning function: The opening of the bypass valve usually indicates that the filter element has exceeded its service life or the oil is abnormal, which is a strong signal that the machine must be stopped immediately for inspection or replacement of the filter element; If left open for a long time, it will lead to increased system pollution.
- Structural features: The spin-on design integrates the bypass valve, check valve (anti backflow), and filter element into one, which you can unscrewe as a whole during replacement, with fewer sealing points and easy maintenance.
You can be attention that the bypass valve is an emergency protection mechanism rather than a normal working channel, and its opening accuracy (opening pressure value) is one of the key indicators to measure the quality of the filter. Insufficient accuracy can lead to premature opening (filtration failure) or delayed opening (pressure build-up risk).







