This power steering oil filter is designed to remove contaminants from the hydraulic fluid within the power steering system of various European trucks. It ensures that clean fluid circulates, protecting the power steering pump and steering gear from wear and damage. A blocked or degraded filter will restrict fluid flow, leading to stiff steering and potential overheating of the power steering system.
Always verify with serial number before ordering.
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Alternate part numbers that interchange with Volvo 21392404
Fitment: Volvo Trucks: FL6: 1995> 2006, FH: 1994> FM: 1999> Scania Trucks: 4-Series PR94/114/124/144/164, PR-Series, DAF Trucks: F65, F75, F85, F95, 65CF, 75CF, 85CF, 95XF
Never run an engine without a filter — even briefly causes abrasive damage. Pre-fill fuel filters with clean fuel before fitting to reduce prime time. Replace O-rings on filter housings every second service. Record change dates on filter housing.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
A failing power steering filter will first cause the steering to become noticeably heavier or more difficult to turn, particularly when maneuvering at low speeds. If ignored, the power steering pump may overheat due to restricted fluid flow, leading to potential pump damage and a loss of power assist. The ultimate consequence is significantly compromised steering control, increasing the risk of accidents.
Ensure all power steering fluid lines are properly flushed before installing the new filter to remove any residual contaminants. Do not overtighten the filter housing, as this can damage the threads or the seal.
When replacing the power steering filter, it is also recommended to inspect the power steering fluid for signs of contamination or degradation and top up the fluid level as necessary.