Automotive maintenance part designed to trap metal debris during oil changes while helping extend engine life. Confidence for DIY mechanics and workshop technicians who want simple, durable protection. Does JNNJ Magnetic Oil Drain Plug fit your vehicle and give a reliable seal?
⚡ At a Glance
- • Build & Material: Stainless steel aluminium construction with a powerful neodymium magnet and copper crush washer
- • Best for: Owners and garages wanting an easy upgrade to capture metal filings during oil changes
- • Not ideal for: Vehicles with uncommon drain plug thread pitches not listed in the supplied sizes
Reusable stainless steel aluminium drain plug with a neodymium magnet and five copper crush washers. Supplied with a range of common metric thread sizes for broad compatibility.
Reduced Engine Wear – With a powerful neodymium magnet
A neodymium magnet embedded in the plug attracts fine iron filings that would otherwise circulate in the oil. Magnetic capture prevents small metallic particles from contributing to abrasive wear.
Less metal in the oil means reduced internal abrasion and a cleaner oil supply during normal running and between services.
Reliable Sealing – Thanks to included copper crush washers
A copper crush washer creates a conforming seal between the drain hole and plug head when tightened. Multiple washers allow replacement at each service to preserve sealing integrity.
A secure seal reduces the chance of slow leaks after an oil change, keeping the sump dry and oil levels stable.
Broad Fitment for Workshops – With multiple common thread pitches supplied
The kit includes a selection of metric thread sizes listed for reference, covering several common car, motorcycle and boat pitches. Compatibility requires checking the vehicle’s drain plug pitch before fitting.
Supplied sizes make it straightforward to find a matching thread for many vehicles, reducing the need to buy separate drain plugs for different models.
✨ The 4 Key Reasons for JNNJ Magnetic Oil Drain Plug
- Engine Protection Design – Counteracts crankcase pressure, helping to limit sludge formation and wear
- Tight Fit, Fewer Leaks – Precision machining and washer reduce likelihood of oil seepage
- Universal Thread Options – Multiple common pitch sizes included for straightforward fit checks
- Simple Upkeep – Wiping debris off the plug keeps oil cleaner between services
📋 Technical Details at a Glance
- Material: Stainless steel aluminium
- Magnet Type: Neodymium magnet
- Washer Included: 5 x copper crush washers
- Pack Contents: 1 x magnetic drain plug, 5 x copper washers
- Compatible Threads: M12x1.75, M12x1.25, M14x1.5, M12x1.5, M14x1.25, M16x1.5, M18x1.5
❓ Frequently Asked Questions
Q: Are copper washers included with the drain plug?
A: Yes, the kit includes five copper crush washers to replace the seal at service intervals.
Q: Will the drain plug fit my car or motorcycle?
A: A range of common metric thread sizes is supplied, but users must check the vehicle’s drain plug pitch before purchasing for compatibility.
Q: How should the magnetic surface be maintained?
A: Wipe the magnet clean during each oil change to remove collected metal debris and restore full magnetic capture ability.
🏆 Our Verdict
Suitable for DIY mechanics and professional workshops that want an easy retrofit to reduce metal contamination, the drain plug's magnetic capture and included copper washers are the main selling points. Strong neodymium magnetism combined with replaceable washers helps protect the sump and maintain a reliable seal. While cost will vary by source, the reusable design and potential reduction in wear offer tangible long-term value.
