So last year while putting the boat away I'd noticed a small crack in the cover plate of my heat exchanger (oem part number 44446)
I put the boat in the water yesterday and fired my engines up and noticed a small drip from the end cap. After removing the end cap and getting it home it actually broke in half..
I've been searching the web for a directly replacement of the end cap without having to replace my current heat exchanger.
I've found several on the web but because rubber gasket has a groove right to left in the middle I'm worried if it won't seal properly... Now if that is the case I can use just the new end plate but I'd rather replace the seals and all.
hopefully the picture shows the groove I'm talking about.
1988 Carver 3607 Mercruiser model 340
Heat exchanger end covers
- Ondercin
- Scurvy Dog

- Posts: 20
- Joined: April 20th, 2015, 5:48 pm
- Vessel Info: 1988 carver 3607 AFT
Penetanguishene - Has thanked: 2 times
- Been thanked: 3 times
Re: Heat exchanger end covers
Okay so I spoke with Mr. Cool (www.mrcool.us) and he advised me that when the gasket was first installed it would have been flat... That is what it looks like after being installed for 10-20 years
The part I ordered if anyone is ever looking for it: End Cap with Gasket Kit - 5 inch sku # MC-SK1500C
The guy i dealt with was Russ very fast service!!!
The part I ordered if anyone is ever looking for it: End Cap with Gasket Kit - 5 inch sku # MC-SK1500C
The guy i dealt with was Russ very fast service!!!
1988 carver 3607 AFT
Penetanguishene
Penetanguishene
- mjk1040
- Admiral

- Posts: 1531
- Joined: July 30th, 2015, 8:15 am
- Vessel Info: 1998 355 AC/MY "Deja Vu"
- Location: Savannah, NY
- Has thanked: 9 times
- Been thanked: 248 times
Re: Heat exchanger end covers
See how good this forum is! Your problem got solved and no one had to answer you! LOL!!!
Mike
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow