A 5000 gauss neodymium magnet intercepts fine ferrous debris at every oil change, protecting Renesis apex seals and bearings between service intervals.
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$70
The RX8 magnetic sump plug is a direct-replacement drain plug for every Renesis-powered RX8. It fits the factory oil pan location on both series. Its 5000 gauss neodymium magnet is confirmed by GReddy Trust as the strongest magnet type available. It captures fine metallic particles suspended in engine oil.
Those particles recirculate and abrade bearing and apex seal surfaces if left unchecked. A standard oil filter catches coarser debris, but the finest ferrous particles pass straight through. This plug intercepts them at the one point the sump is opened each service interval.
For RX8 enthusiasts, fitting a magnetic sump plug pays off immediately and keeps paying off at every service. Every time the plug comes out, the magnet tells you something about what is happening inside your Renesis. Over successive services, that information is genuinely useful.
Whether you are running a daily driver or building toward a track day, reducing abrasive material in the oil is one of the lowest-effort, highest-return reliability steps available for the SE3P oil pan.
Rounding out the oil service makes sense while this RX8 magnetic sump plug is out. Pair it with the GREDDY TRUST Oil Filter for Series 1 cars, or the GREDDY TRUST Oil Filter for Series 2, to keep the full filtration path consistent. If you run a manual gearbox, the R-MAGIC Super Magnetic Gearbox Drain Plug applies the same principle to the gearbox drain, a practical companion service item. For full manufacturer information on the GReddy Trust Super Magnetic range, see Trust’s official website.
Independent reviews of this product gathered from other stores and owner communities.
Steering wheel , GReddy Radiator , Odula intake , Extractors , OMP sheild , Brass gear stick bush , Alternator , GReddy pulley set , New gear stick boot , Magnetic sump plug with a lot more to come ! One of the nicest guys to deal with as well for parts and knowledge on Mazdas is next level !
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Related RX8 Upgrades
Yes, the GREDDY TRUST Super Magnetic Oil Pan Sump Plug is a direct replacement that fits the factory drain location on both Series 1 (2003-2008) and Series 2 (2009-2012) RX8 oil pans. No modification is required for either series.
The plug uses a 5000 gauss neodymium magnet, which is strong enough to retain fine ferrous particles that remain suspended in engine oil and pass freely through a standard oil filter. These are the microscopic metallic particles generated by normal internal wear on the Renesis engine.
Remove the plug as you normally would during an oil change, then wipe it clean on a white rag. A light grey metallic smear is considered normal wear. Heavy or chunky deposits are a signal to consult a rotary specialist before your next hard run or track day.
No. The GREDDY TRUST plug body is compact enough to leave sump clearance unchanged, so it installs at the factory drain location without fouling standard undertrays. It is a like-for-like replacement in terms of fitment envelope.
The two parts address different particle sizes and work best together. The magnetic sump plug captures fine ferrous debris that bypasses the filter media, while a quality oil filter handles larger contaminants in the full oil flow. Pairing the sump plug with the matching GREDDY TRUST Oil Filter gives the most complete filtration path for a Series 1 or Series 2 RX8.
This plug is designed for the engine oil pan only. For manual gearbox applications, the R-MAGIC Super Magnetic Gearbox Drain Plug applies the same magnetic debris-capture principle to the gearbox drain and is available separately.
Inspect it at every oil change interval. Because the plug sits at the one point the sump is opened each service, every drain gives you a fresh reference point. Comparing what you see across successive services is the most useful way to track whether the Renesis engine's internal wear rate is changing.
