Mercury 858452-1 859772-1 Cylinder Head Seal Set V-150 V-175 V-200 EFI DFI 2.5L Flame Arrestor Not Sure what brand this

Not Sure what brand this is possible Perko

and also one specific 305 model in 1987

I think this is an earlier variant as the exhaust end is a bit longer than more modern propellers

Appears all of the screws themselves match

Mercury 858452-1 859772-1 Cylinder Head Seal Set V-150 V-175 V-200 EFI DFI 2.5L Flame Arrestor Not Sure what brand thisPart Number(s) Included (Enough parts to do one side only) Quicksilver Mercury Mariner 858452 1 Seal (x1) Quicksilver Mercury Mariner 859772 1 Seal (x3) **Original packaging may look different than pictured, and in some cases may not even be included with the item.** Application & Compatibility Compatibility details have not been added at this time, if you are unsure just ask! (or check with a parts diagram) Purchase with confidence! This is a NEW