How to Replace oil filter adapter gasket & o-ring

[Hodges87]

How to: Replace your Oil cooler adapter gasket & o-rings

If your Oil cooler adapter is leaking like the one above don't worry its simple fix.

Here are the item needed to replace the gaskets:

Felpro gasket set # ES72671
De-greaser (optional)
Scraper to remove old gasket
1/2 inch socket and ratchet
Pick (if removing oil cooler lines)
Flat head screwdriver

Removal:

Step 1: Clean and degrease the adapter and surrounding area. (Not always necessary, but I like a clean engine)

Step 2: Drain the oil and remove the oil filter and drain for a few mins.

Step 3: (This is step optional, I wanted to clean the oil filter adapter and replace the o-rings on the oil cooler lines) Carefully remove the plastic keepers and slide them back, then use a pick to pull the c-clamp off and pull the line out of the adapter.

Step 4: Remove the 2 (1/2 inch) bolts holding the oil filter adapter on and separate the adapter from the engine

Step 5: Remove the o-ring and scrap away the old gasket

Installation:


Step 1: Replace the o-rings inside the oil cooler line fittings on the adapter

Step 2: Install the large o-ring and gasket (a little petroleum jelly will help the gasket stay in place)

Step 2: Install the adapter with 2 (1/2 inch) bolts

Step 3: Install the lines into the adapter.

Step 4: Install a NEW oil filter & engine oil

Finished! I hope this guide helped you fix your leak!

[88GMCtruck]

Good write up, I recently swapped my adapter for the older style straight down filter, it was the same process.

[Ol'Rover]

if you just did a straight down filter...did you completly by-pass the oil cooler?

[88GMCtruck]

if you just did a straight down filter...did you completly by-pass the oil cooler?

I actually used the older style adapter and added the larger external cooler. Overall it added 2 quarts to the oil system. I did a writeup on mine as well: http://www.gmt400.com/forum/showthre...nt-to-see-this)

[silverado_06]

awesome. i noticed mine is leaking as well, and was wondering how hard it would be to do myself. seems easy.

[Swims350]

I called autozone and advance on the fel pro number and they got 3 in stock at advance, gonna buy me one tomorrow and do an oil change on my truck, mines leaking. My dad said so a straight filter, but mine doesn't have oil cooler lines, just the same adapter.

[Swims350]

got mine today, gonna install them tomorrow, thanks for the write up and part no.

[Hodges87]

Its easy to do, but it can be messy.

[Swims350]

That's for sure, I had to pull mine with the filter on it since I couldn't find the right oil filter wrench or cup.

[joshjuniorr]

That's for sure, I had to pull mine with the filter on it since I couldn't find the right oil filter wrench or cup.

screwdriver makes for a universal filter wrench imo if you really need too.
Also at work we use our mcmap/riggers belt if we cant find a filter wrench.