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Old 02-10-2014, 12:21 AM
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Help pls in Choosing the correct timing cover

Hi guys,

MY 05 WK started leaking coolent & was found to be from a crack in the timing chain cover (where the water pump is attached to). the PN is :- 53021227AA.

My question is, can a unit bought from a 3.7 engine work? reason i ask is, so far ebay has turned up used units, but its for the 3.7.

i recall reading that the 3.7 & 4.7 are essentially the same engine with less cylinders. if so, will the timing case fit?

please help me out guys. it hurts to see the jeep in this state.
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Old 02-10-2014, 10:09 PM
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Re: Help pls in Choosing the correct timing cover

Bump! ,..anybody?
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Old 02-11-2014, 03:34 PM
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Re: Help pls in Choosing the correct timing cover

I do not believe the timing chain covers are interchangeable, but do not know for sure.

The cover for the 3.7 is part #53021238AB.

I have also heard that the 3.7L and 4.7L are the same engine, with a couple cylinders chopped of the 4.7...I wouldn't take that statement too literally. I think you will find many differences between the two, apart from the 6 vs. 8 cylinder thing.
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Old 02-11-2014, 11:28 PM
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Re: Help pls in Choosing the correct timing cover

thats the issue, when checking by P/N alone, it would seem that the same unit was used in 4.7's of the 05'+ 1st gen & 2nd gen engines. they also turn up for 05' & up 3.7 engines.
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Old 03-21-2014, 01:15 PM
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Re: Help pls in Choosing the correct timing cover

well for those of you who mmay come across a similar issue, i bought a timing cover off a 2008 JGC & it fits perfect. looks like the front ends are infact similar on both generation 4.7's
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