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Lifted Super Duty with chrome train horns and red suspension undercarriage

Help Center · Compressors

How To: Relocate The Air Filter

Move the compressor air filter to a high, dry location so moisture and debris never get pulled into the intake.

  • What you need: two barbed fittings, air filter housing, mounting hardware, and 3/8" air line (included with the compressor)

Overview

Relocating your air filter is one of the most important steps when installing your HornBlasters kit. If you are mounting your compressor outside the vehicle, chances are it’s going to get wet at some point in its lifetime. No problem, right? Only if your air filter has been relocated properly. If the air filter is mounted right onto the compressor, it can get wet and ultimately allow the compressor to breathe in moisture/debris. This can/will lead to issues with the compressor and eventually failure.

The Process

Your air compressor came with two of the barbed fittings pictured below, a set of mounting hardware, and an air filter housing.

1

Thread the male fitting into the compressor

Start by threading the male (threaded) fitting into the compressor. No Teflon tape is required for these fittings as they will not be holding back any pressure. If Teflon tape is used, it is possible for pieces of it to get stuck within your air compressor.

Air filter relocation fittings
Barbed fittings — male for the compressor, female for the filter.
2

Install the female fitting on the filter housing

Thread the female fitting onto the male thread of the filter housing, so that you end up with the following:

Fittings installed on air filter and compressor
3

Mount the filter in a high, dry location

Finally, locate a good spot for the filter housing. You ideally would mount this in a high/dry location such as the cab, but any area where water will not reach the filter will work.

4

Connect compressor to filter with 3/8" line

At this point, you can use the supplied roll of 3/8" air line provided with the compressor to connect the compressor to the filter housing, as shown below:

Your air compressor is now ready for use, through all conditions!
Air filter connected to compressor with air line

Next

How to connect to your factory horn button — wiring the solenoid with T-taps for steering-wheel control.

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