Enhance Engine Performance with Fel-Pro BS 40183 Rear Engine Main Seal Set Review

Replaced the rear main oil seal in my 186,000 mile Jeep 4.0. Valve cover gasket and oil pan gasket renewed. Before replacing the RMS, you should check and make sure the leak isn't coming from two other places that are very leak prone. Of the three, the rear main oil seal looked the best, to be honest. I can't say much about the seal. It was the right size. It comes with a small plastic guide to help you insert the gasket into the cylinder block half without damaging the gasket. Don't forget to…

I have replaced the rear main oil seal and oil pan gasket on my 02 Grand Cherokee 3 times and they leak every time. Many houses are in this. I have followed all directions. I think the crankshaft was scratched. I gave up, just kept an eye on the oil level and drove like crazy. Then I found a brand new Wrangler and got it. So this Jeep went to a new home via Ebay. He knew about IVs, I think they all do. But overall the quality of this pad is excellent. I don't think that's what caused my leak…

Unsurpassed quality. This is a manufacturer of seals for Jeep Wrangler TJ as well as many other vehicles. The quality is definitely there. Installing the rear main oil seal on a 4.0 liter engine can be difficult but there are many installation reports online. And hey, you don't have to pull the transmission to get to it. However, you *really* have to pull out the entire exhaust system, which is a big PITA. You get to this by removing the oil pan, and the exhaust only gets in the way of this…