This is a genuine Mazda part. As these cars get old, some of these places will leak. This grommet hardens over time and can cause a small vacuum leak which can lead to idling issues. Sometimes pulling out the PCV will require you to replace this gasket. Make sure to have this on deck when you’re doing PCV service(just in case).
DON’T CHEAP OUT ON AN AFTERMARKET! Aftermarket gaskets usually leak and make a mess. Do it once, and do it right! This gasket lasts many years, so just get the correct one from the beginning.
We have tried many and have gone back to ONLY using a Genuine Mazda Gasket for this.
Other items like belts and waterpumps are fine to use Gates. This isn’t one of those items.
EVERY YEAR CAR is different! Please select the appropriate car.
MAKE SURE YOU FOLLOW THE WRITEUP TO GET THE BEST RESULTS!
This is a genuine Mazda part. As these cars get old, some of these places will leak. These O-Rings can be the cause of that gas smell under the engine bay. These should not be re-used! Your car will require more than 1, order accordingly.
Water Neck (Thermostat Housing) O-Ring Seal – 1989-2005 Mazda Miata B61P-15-106A $7.99
Application: Mazda Miata 1989-2005
Description:
This is a genuine Mazda part. If you are doing your front service, or have a small leak, DON’T FORGET THIS O-RING! If you’re in there doing some work, might as well make sure you hit all the gaskets. This O-Ring fits on the Waterneck(to the head).
This is a genuine Mazda part. As these cars get old, some of these places will leak. This notorious O-Ring leaks directly onto your heater core hoses. Your hoses will turn into playdoh and rupture prematurely. MAKE SURE YOU CHECK THIS! You can check by just using your finger on the bottom side of the CAS when the engine is cool. Remember to mark the CAS position prior to doing the gasket replacement so that you don’t need to re-time your car. We have had good luck just using a sharpie or paint pen and marking a line
