Sierra 18-4257 Pipe Plug

Sierra 18-4258 MerCruiser Pipe Plug Sierra stainless steel pipe plug with square drive. Note: Pipe sealant with Teflon is recommended for use on plug threads. Thread Size: 3/4" - 14 NPT Use...

Sierra 18-4265 Pipe Plug Sierra replacement pipe plug for Mercury and Mercruiser engines. Thread Size: 3/4" or 19.1mm - 14 NPT Material: Brass Interchangeable...

Sierra 18-4264 Pipe Plug Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives and Mercury Marine engines. Using Pipe Sealant with Teflon is...

Sierra 18-4256 Pipe Plug 56507 Pipe Sealant with Teflon is recommended for use on 

Sierra 18-4263 Pipe Plug 1/8"-27 NPT Sierra replacement pipe plug. Thread Size: 1/8" - 27 NPT Material:...