freeze plug replacment

[995jim]

Hello, If replacing a freeze plug will any plug do, or does a marine environment necessitate brass material. Not sure what is best. application is a 305 mercruiser
thanks jim

 

[Quarterwave]

Brass is best for marine. You can find marine application plugs at Jegs and/or Summit Racing for about $10 to $15 + shipping.

 

[Rick Stephens]

I got them at my local NAPA last time. Common item.

 

[alldodge]

Brass or stainless

 

[Scott Danforth]

Oreillys, autozone, napa, carquest, etc all carry brass core plugs

However if the core plug was pushed out, you may have a cracked block

 

[tpenfield]

A question to ask is why does the original core plug need to be replaced? Did it pop out . . . from freezing?

 

[Bondo]

Ayuh,.... Agreed,... Which replacement is easy, the Big question is Why are ya doin' it,...