Is your coolant cap leaking or not holding pressure? This universal expansion tank cap is a perfect replacement for many Honda, Hyundai, Nissan, and Toyota models! Brand new and unbranded, but built to fit. Compatible with tons of OEM part numbers including 25330-05000, 16401-53440, MR968532, and many more (see full list). Keeps your cooling system sealed and operating at the right pressure. Prevents overheating and coolant loss. Easy to install—just twist it on. A must-have for any DIY mechanic or car owner. Don't let a faulty cap cause engine problems. Keep your ride cool and running smoothly. Works on radiator overflow tanks and expansion reservoirs. Affordable, reliable, and ready to ship. Whether you're fixing a leak or doing routine maintenance, this cap has you covered. Order now and protect your engine from overheating!