I own a 1962 Gale manufactured Sea King 15HP outboard. A few days ago I ordered quite a bit of parts from marineengine.com. All parts fit but this head gasket. As I compare this head gasket to the old one it is about 1/8" bigger in all directions. This model shares parts with OMC outboards (Evinrude/Johnson) of the same vintage and I was aware some parts may not fit.
The existing gasket and gasket ordered are definitely from the same manufacturer, same logo is stamped and a four digit number is stamped near the logo. The existing head gasket is stamped 3051 and the part sent was 3138. I imagine the gasket sent was for an 18hp motor because there was no 15hp motors made by Evinrude or Johnson in 1962. Pictured is the ordered gasket sitting on top of the existing gasket. You can see the size difference. Can someone help me find this gasket?
Sea King 15HP 2 Stroke
Model number - GG18737C
Year - 1962
Parts ordered were from part catalog 15D13W which is a match to Sea King motors. Head gasket ordered from marineengine.com is part number 203247. Possibly they sent the wrong part? I sent an email to check.
The existing gasket and gasket ordered are definitely from the same manufacturer, same logo is stamped and a four digit number is stamped near the logo. The existing head gasket is stamped 3051 and the part sent was 3138. I imagine the gasket sent was for an 18hp motor because there was no 15hp motors made by Evinrude or Johnson in 1962. Pictured is the ordered gasket sitting on top of the existing gasket. You can see the size difference. Can someone help me find this gasket?

Sea King 15HP 2 Stroke
Model number - GG18737C
Year - 1962
Parts ordered were from part catalog 15D13W which is a match to Sea King motors. Head gasket ordered from marineengine.com is part number 203247. Possibly they sent the wrong part? I sent an email to check.