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Junior Member
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515 Posts
Discussion Starter #1
Trying to look up exhaust bridges for my 3zj. It says contact dealer. Call dealer and they claim 7c-0048 is supersede to 7c-0049. when I look at other 3zj serial numbers it gives me a choice of the 7c-0049 as well as 101-1818. The 7c-0049 is 71 bucks now but I can find several of the 101-1818 on ebay in genuine Cat and aftermarket for considerably less. When you just reference the 101-1818 on google it shows to b for 3406b and c models.Very little info on 7c-0049 fro google search . Cat parts online shows the intake as 101-1816 for my engine as well as the others I checked. Are there really several different exhaust bridges for these b and c engines? Just trying to freshen things up a bit . About 900 bucks through Cat or get oem for under 350 to change them all. I watch for stuff I don't need right this minute but do feel should be replaced, in effort to save a few bucks. Thanks. I figured one of you few remaining Cat mechanical gurus might know what I am dealing with off the top of your head.
 

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Junior Member
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515 Posts
Discussion Starter #3
93 model 3zj27561. One page in Cat manuals calls it a B model but it is a wide rod 7e5888 11 degree engine. C model, full mechanical oem. Don't know the block number off hand.
 

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Junior Member
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515 Posts
Discussion Starter #5
Yeah, I know in one place it calls it a B then a C. For all intents and purposes it a C almost by definition. I appreciate your looking it up. I can get to the parts manual at Cat but it is not near as user friendly or informative as SIS. I use to get SIS no problem. Now when I use the parts lookup it tells me "for more detailed info try SIS". But when I try it it says I am not authorized. Going to talk to them about that today when I go by there to pick up some lines. My main question is what makes my exhaust bridges different than those on say a 7fb?
 

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168 Posts
all the same as long as it has jake brakes...the original bridges for motors with no jakes are built like the intake rockers. The only difference between the old and newer ones for jakes are updates but the 3 different ones i know of will all interchange...on a side note a belt sander will flatten them back off and is permissable one time according to cat specs.
 
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