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Sierra Manifolds

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mschwenz

Contributing Member
"Im looking for a manifold for

"Im looking for a manifold for a 2001 4 cyl 3.0L but im having a hard time figuring out which one is the direct replacement.
The mercruiser part number of the old one is 860235A03. And sierra offers three different manifolds sierra #18-1954-1, #18-1955-1, #18-1956-1 anyone know which one fits

also any other companies make direct replacement manifolds?"
 
140 ser# 2508261 thru 6229717

140 ser# 2508261 thru 6229717 18-1955-1
140/3.0 L 6229718 & up 18-1956-1
3.0L/3.0 LX C856559-F603999 18-1956-1
 
Can't remmeber serial numb

Can't remmeber serial number (boats at the dock) but it starts with 0M5(?????) where does this fit in.. For those three manifolds the dates in the catalog are in the 1980s except for 1 that goes to 1995 which is still a ways off from 2001
 
"Mike, you'll need to call

"Mike, you'll need to call a Sierra dealer and ask them to cross the number for you, I have a contacts todo it but they're not open yet. I might be able to later today."
 
I was able to find a GLM part

I was able to find a GLM part substantially cheaper than sierra (over 100 bucks cheaper).
Does GLM have the same rep or quality sierra or OEM parts have?
 
"some people here dont like GL

"some people here dont like GLM, I've seen responses like Chinese junk er ah.. non-american garbage.. er... get the OEM, comes with a nice kits that others charge extra."
 
"alpha 1 gen 2-ok took my lowe

"alpha 1 gen 2-ok took my lower unit off to change impeller,noticed on the right rear of the water jacket where the gasket and faceplate ride,pencil size corrosion where it seems water is escaping to the filler block, is this a issue and would someone make a recommendation ?"
 
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