PIAA oil filter Z2-M

The Z2-M pairs twin-layer filter paper with a magnetic ring, giving it two ways to target iron particles in engine oil. PIAA specifies a 10-micron filter-paper type combined with a standard 20-micron construction, alongside a 1,000-gauss magnet. That makes its design more involved than a basic paper-only element, though the listing does not provide independent performance or service-life results. It is identified for selected Toyota and Mazda vehicles, so the exact application matters before you buy.

Where it shines

The main point of difference is the magnetic ring plate fitted at the centre of the filter element. PIAA says it attracts iron dust, helping reduce the particle load on the filter material, the twin-power paper structure is intended to handle filtration as well. In practical terms, that combination is aimed at capturing iron particles while oil circulates through the engine, rather than relying on filter paper alone.

The listed dimensions are 85 mm high and 74 mm in outer diameter, with a 3/4-16UNF screw diameter. The product information also specifies a 100 mm magnetic ring plate and a strength of 1,000 gauss. Those details help identify the part, but they do not by themselves confirm that it suits every vehicle in the named ranges. The representative applications include Land Cruiser Prado, Mark II and Atenza models, among others.

If you prioritise a magnetic element as well as layered filtration, this design offers that extra feature, if you prefer a straightforward replacement filter with fewer specialised features, a conventional paper-only element may be the simpler choice. It makes sense if your vehicle is listed and the filter’s dimensions and thread match the required part.

What to know

The filtration figures describe the paper construction, not a guaranteed outcome for a particular engine or driving pattern. There is no stated change interval, vehicle-year breakdown or information about installation, so avoid treating the representative vehicle list as a complete fitment guide. Check the exact application for your vehicle before ordering, especially if its model name covers multiple variants.

The magnet is specifically described as targeting iron dust, the listing does not claim that it removes every type of contaminant. Nor does it give comparative test results for filtration efficiency or pressure loss. The stated aim is higher filtration efficiency with lower pressure loss, but the available product details are not enough to quantify that advantage against another filter.

Best use cases

This is intended as an engine oil filter replacement for the Toyota and Mazda applications named in the listing. For example, when selecting a service part for a listed Prado, you can compare the Z2-M’s 85 mm height, 74 mm outer diameter and 3/4-16UNF thread with the exact requirement for that vehicle. That is a more useful check than relying on the model name alone.

Best avoided if you cannot confirm the fitment or need documented service intervals and test data before choosing a filter. The magnetic ring and twin-paper construction are the reasons to consider it, they are not substitutes for matching the part to the engine.

Final thoughts

The PIAA Z2-M is worth considering when its listed Toyota or Mazda application is confirmed and you specifically want a filter element that combines paper filtration with magnetic capture of iron particles. Its appeal is that dual approach, not a proven longer replacement interval or a quantified performance gain. If you need certainty across a particular model year or engine variant, prioritise exact fitment information over the broad representative vehicle list.