Advanced Leak Prevention: Features a patented sealing and locking mechanism with a dynamic O-ring that expands on contact with oil, reducing risk of oil leaks and catastrophic loss.
Engine & Oil Pan Protection: Made with a durable alloy that reduces wear and prevents thread stripping, preserving your engine and oil pan.
Eco-Friendly Solution: Helps prevent oil pollution with secure sealing—perfect for green oil changes using synthetic or re-refined oils and long-life filters.
Fast & Easy Installation: Includes preassembled washer/gasket, unified torque setting, and easy plug identification system for quicker, safer installation.
Reusable & Reliable: Built to last with recyclable materials and designed for multiple oil changes, saving time, money, and the environment.
SMART-O R4 Oil Drain Plugs provide an innovative, safer alternative to regular oil drain plugs at an affordable cost. Considered the safest and greenest oil plug available, Smart-O plugs reduce oil leaking out of your vehicle and into the environment. Uses high-performance sealing technology and patented anti-leak and anti-vibration mechanism. Designed with an O-ring that expands upon contact with oil, acting as a seal to prevent leakage and creating resistance to the plug coming lose from vibrations from the engine. O-ring reduces need for overtightening. Aluminum washer acts as bushing to reduce metal to metal contact. Head-markings for quick plug identification. Specifications Thread Diameter x Pitch: M12 x 1.5 mm Hex / Recess: 17 mm Plug Material: Low carbon steel Plug Finish: Black oxide with black dip oil WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.