FILTER (Hyundai HN3978040-RFX)

HN3978040-RFX: A damaged filter can allow contaminants to circulate, leading to accelerated wear in connected components. Hyundai is the OE maker for this aftermarket replacement part, cross-referenced as HN3978040-RFX. The filter's primary function is to trap particles and debris from a fluid or air stream. Over time, a clogged filter restricts flow, which may cause system pressure drops or overheating. Keeping a filter in sound condition helps maintain consistent performance and extends service intervals. This item is a generic replacement and does not include any specific material qualifiers or specs beyond the catalog reference. Verify the serial number or application, then call (562) 693-7748.

Part number variants: HN3978040-RFX, hn3978040-rfx, HN3978040RFX, hn3978040rfx