Topic: 4.0 exhaust /inlet gasket (Read 1976 times)

Panic mechanic! · « **on:** May 03, 2012, 10:05:08 PM »

silly question but I beleive they are all the same.... but are they? I need one for the Wj and been quoted 2 different numbers?

Carlos Fandango · « **Reply #1 on:** May 04, 2012, 10:13:21 PM »

Ive got 53010238

Panic mechanic! · « **Reply #2 on:** May 04, 2012, 10:39:37 PM »

I have P4529243 and MS93094

Delk · « **Reply #3 on:** May 05, 2012, 06:54:10 AM »

I would guess they would have changed in 99 with the different cylinder head ports

Jonny Jeep · « **Reply #4 on:** May 05, 2012, 06:45:55 PM »

I have P4529243 and MS93094

First part number is mopar performance and according to summit racing site fits 87-98 4.0L engines. The second is the fel-pro number which according to rockauto fits 99-on 4.0L engines.

http://www.summitracing.com/parts/DCC-4529243/Application/?prefilter=1

Panic mechanic! · « **Reply #5 on:** May 06, 2012, 12:28:20 AM »

guess a lot of the number's just rely on what and where suppliers get their stuff.

Delk · « **Reply #6 on:** May 06, 2012, 06:02:31 AM »

99 is when the 4.0 changed heads and manifolds with the small exhaust ports.

Panic mechanic! · « **Reply #7 on:** May 06, 2012, 11:17:54 AM »

its also the year that if you do swap over the inlet manifold to an earlier engine you do get up 15hp increase apparently as it flows more air .

greggmo · « **Reply #8 on:** May 11, 2012, 11:21:05 PM »

i see a wj parked up very soon. what ya gettin next

sorry couldnt help me self.

Panic mechanic! · « **Reply #9 on:** May 11, 2012, 11:23:09 PM »

nah its on its way out the door..... just don't like it that much. not even Nik kershaw being a previous owner can help it lol

Bubba · « **Reply #10 on:** May 12, 2012, 08:29:18 AM »

one thing is certain its a nice jeep well worth fixin