Easy to install spacer kit makes more room to service fuel filter.
This spacer fits the 2011+ LML Duramax engine.
It's a tight fit to squeeze a filter wrench around the fuel filter with the newer longer filters. GM designed a step in the bottom of the can to help with the problem, but it's still very tight, especially, with the wires routed close to it.
After being frustrated with this, they developed a rather simple solution to the problem, a 3/8" thick aluminum spacer to move the filter head away from the valve cover. This is enough room to make getting a filter wrench in there a lot easier, but not enough that it makes it tough to get the filter out of the engine bay. Included are two bolts that are longer to support use of the spacer. Install is very easy. Simply, take out the two bolts that hold the filter head to the support bracket and install spacer and longer bolts. No fuel lines or wires need to be moved or extended.