2005 Mercruiser 4.3L V6 TKS Oil Pan Seal/Gasket

[Markx]

So my timing cover has been leaking, so needs replacing. This requires the oil pan to be removed (motor out job). Is in the shop for this. Issue is when the shop ordered a new mercury factory oil pan seal based on my engine s/n, it doesn't match my oil pan. Job halted. I'm wondering if there is an after market oil pan for my engine that would have a different seal. Does anyone have any experience or insight into this?

 

[alldodge]

Hey @Scott Danforth

 

[Scott06]

@achris i think chris went through this with leaking timing cover and pan, i think he posted the gm part numbers

 

[Markx]

Thanks @Scott06. I've read @achris 's post a number of times. Very very useful. I'm trying to determine if I have the original Mercruiser Oil Pan, or an after market, as the oil seal appears to be different from the original. Does anyone know if the original was cast, or alloy?

 

[achris]

From 1996 the sump was cast aluminium. You haven't posted your serial number, but there's are 2 different aluminium sumps. Pre 2008 with the composite timing cover and post 2008 with an aluminium timing cover...

Chris....

 

[Markx]

From 1996 the sump was cast aluminium. You haven't posted your serial number, but there's are 2 different aluminium sumps. Pre 2008 with the composite timing cover and post 2008 with an aluminium timing cover...

Chris....

Thank you Chris. Appreciate your response. Unfortunately the boat is in the shop at the moment. I'm in NZ and we just entered a short sharp COVID lockdown. So I'm not sure of the Serial Number right now.