Hydraulic systems run at high pressure through very fine clearances, so they are rated by beta ratio rather than a single micron figure. Here is what those numbers mean and which parts carry them.
You will notice these are rated differently from the engine filters. A hydraulic filter is quoted as a beta ratio at a particle size: beta 75 at 20 micron means that for every 75 particles of 20 micron going in, one comes out, which is 98.7% efficiency at that size.
That is why one filter below lists three or four figures. Reading them together tells you far more than a single micron number would. Beta ratios explained has the conversion table.
Note the HF6552: at beta 200 it removes 99.5% of particles at 13 micron, which makes it the finest on this list and a sensible choice for precision circuits. The HF6555 and HF6565 share dimensions but differ in media, so check which one your machine takes rather than matching on size alone.
MANN W 962/14 is worth a second look. The W prefix normally marks an engine oil filter, but MANN catalogue this one as a hydraulics filter, so do not read across from the W 962 on the oil filter page. It is also rated differently from the Fleetguard numbers above, so see micron ratings on why a nominal figure and a beta ratio are not directly comparable.
9 hydraulic filter numbers we are asked for most often, across Fleetguard and MANN-FILTER. Our range is far wider than this — if your number is not listed, it is very likely we can still supply it or match an equivalent.
Fleetguard
Spin-on hydraulic filter
Typical applications JCB, Komatsu, Case IH, New Holland, Deutz and Lamborghini construction and agricultural equipment, 1980 to 2020.
Fleetguard
Spin-on hydraulic filter
Typical applications Ford, Peterbilt, Volvo, Caterpillar, John Deere, Case IH and Massey Ferguson equipment, 2004 to 2023.
Fleetguard
Spin-on hydraulic filter
The same diameter as the HF6710 but considerably taller, so it holds more dirt.
Typical applications Volvo Construction Equipment, Case IH, Massey Ferguson, Gleaner, Challenger and Caterpillar machines.
Fleetguard
Spin-on hydraulic filter
Typical applications New Holland, Gehl, Bobcat, Timberjack, Bell Equipment and Versatile hydraulic systems.
Fleetguard
Spin-on hydraulic filter
Synthetic media, and finer than the HF6565 it shares dimensions with.
Typical applications Volvo, Caterpillar, Komatsu, John Deere, JCB, Case IH and New Holland hydraulic systems.
Fleetguard
Spin-on hydraulic filter
The finest hydraulic filter on this list. At beta 200 it removes 99.5% of particles at 13 micron.
Typical applications Caterpillar, John Deere, Komatsu, Case IH, New Holland and Bobcat hydraulic systems.
Fleetguard
Spin-on hydraulic filter
Typical applications JCB, Volvo, Case IH and Ferrari construction and agricultural equipment, 1980 to 2020.
Fleetguard
Spin-on hydraulic filter
Typical applications John Deere 110, 120, 375, 575, 675, 970, 3375, 5415, 5515, 5615 and 9410; New Holland loaders and combines; Kalmar, Tennant and Mustang machines.
MANN-FILTER
Spin-on hydraulic filter
MANN catalogue this as a hydraulics filter rather than an engine oil filter, despite the W prefix.
Typical applications Hydraulic systems on industrial and agricultural equipment.
This is a shortlist, not our range. Send us the number stamped on the old element, or the make and model of the machine, and we will identify the right part, confirm the fitment and quote it with availability. We can also cross a number from one brand to its equivalent in another.