Purpose and Specifications

MANN-FILTER HU 721/4 x is a genuine engine oil filter that removes metal particles and combustion contaminants from the engine oil, protecting bearings and moving parts and keeping the oil clean between changes.

Key specs include:

• Filter type: engine oil filter (OE-matched)
• Reference: HU 721/4 x
• Brand: MANN-FILTER (OE quality)
• Precise OE dimensions and sealing for a direct, leak-free fit
• High-grade media for effective filtration and long service life

When to Use / Replace?

Replace this engine oil filter at every engine-oil change, typically every 10,000-15,000 km or once a year. A clogged filter reduces performance and can damage downstream components, so inspect it at every service.

FAQ

Q: How do I know MANN-FILTER HU 721/4 x fits my car?
A: Match the reference HU 721/4 x (or the OE number in your service book) to your exact model, engine and build year.

Q: How often should this filter be changed?
A: Replace it at every engine-oil change, typically every 10,000-15,000 km or once a year.

Q: Is this a genuine MANN-FILTER part?
A: Yes - an original MANN-FILTER product built to OE specification for a precise fit.

Important: one filter reference can fit several models, and the same model may use different filters depending on engine and build year. Always verify fitment by the manufacturer reference or your vehicle's OE number before purchase - if in doubt, check against your owner manual.