Deatschwerks 110mm Stainless Steel 10/100 Micron Fuel Filter

DeatschWerks 110mm Stainless Steel Fuel Filter Elements (10 Micron / 100 Micron) and -10AN Housing Kit - Universal

A fuel filter keeps working until the element starts to load up. Debris collects on the screen, flow gets harder to push through, and the pump has to work harder to hold pressure. A small element loads up faster simply because there's less screen to catch the debris. That's especially true after you switch to E85, which strips years of varnish out of a tank and lines. DeatschWerks' 110mm housing gives you a longer element with more screen area than their 70mm compact housing. It takes longer to load up, it's less restrictive at high flow, and you'll go longer between cleanings.

This page covers the replacement elements and a complete housing kit. If you already run a DeatschWerks 110mm housing, the elements are how you service it or change its micron rating. If you're starting from scratch, the -10AN housing kit comes with a 10 micron element already installed. If your setup is tight on space, the 70mm compact filter will fit where this one won't. If you have the room, the 110mm gives you more filter.

10 Micron or 100 Micron?

The two ratings do different jobs and go in different places. A 100 micron element goes before the pump. It catches rust flakes, tank sediment, and anything big enough to damage a pump, without making the pump work to pull fuel through it. A 10 micron element goes after the pump, between the pump and the rail. It catches the fine particles that can stick an injector open. Don't put a 10 micron element on the suction side. The pump has to work too hard to pull fuel through it, and that can cause cavitation and starve the pump. Plenty of serious fuel systems run both: 100 micron before the pump and 10 micron after it.

Washable Stainless Mesh

Both elements are woven stainless steel mesh, not paper, so you clean them and reuse them instead of throwing them away. Paper elements break down in ethanol, and stainless mesh doesn't. That's why these are rated for E85. To service an element, pull it out and soak it in a clean solvent, rinse it through, and let it dry completely before you reinstall it. Check the mesh for tears or a crushed pleat each time you clean it, and replace it if it's damaged.

The -10AN Housing Kit

The housing kit comes with a 110mm stainless housing and a 10 micron element, with -10AN ORB ports on each end. ORB stands for O-ring boss. The port has a straight thread, and an O-ring on the fitting does the sealing, not the threads. That means no thread tape and no tapered threads to crack the housing if you over-tighten. -10AN is a common feed line size on high-flow and E85 builds, so the filter won't become the restriction in your line.

Install Notes

Depressurize the fuel system before you open the housing. Use a new O-ring on the housing whenever you change or clean the element, and lube it with a little clean fuel or engine oil before you thread the housing back together. Mount the housing solidly so it isn't hanging off the lines, make sure it's facing the right flow direction, and check for leaks at full pressure before you drive. If you just switched to E85, check the element sooner than you normally would. That first tank flushes out a lot of debris.

Fitment

• Elements: fit DeatschWerks 110mm filter housings only. Not compatible with the 70mm compact housing
• 10 micron element: install after the fuel pump (pressure side)
• 100 micron element: install before the fuel pump (suction side)
• Housing kit: -10AN ORB ports, includes 10 micron element