Installation Instructions
For Part Numbers:
400-226 720-473 Airaid Oiled Media Filter
401-226 721-473 SynthaMax Dry Media Filter - Red
402-226 722-473 SynthaMax Dry Media Filter - Black
403-226 723-473 SynthaMax Dry Media Filter - Blue
2009-10 Ford F-150 4.6L, 5.4L V8
2008-10 Ford F-250/F-350 Super Duty
5.4L V8, 6.8L V10
1. Disconnect the negative battery cable!
A.) Using the pr ovided #20 Tor x Bit remove two
screws and the Mass Air Flow (MAF) sensor from the
factory intake tube. There is no need to disconnect the
wiring harness.
B.) Loosen the factor y hose clamp.
C.) Unlatch 3 clips that secur e the air box lid to the
base.
2. Remove the factory airbox lid from the vehicle by
sliding the flexible tube off of the airbox lid neck, and
then rotate the lid up and out of the base.
3. Remove the factory air filter from the airbox base.
4. Assemble the two Quick Fit panels (#3 & #4) as
shown using four 6-32 screws (#6) flat washers (#7)
and kep nuts (#8).
5. Install the MAF Adapter Tube (#2) into the Quick Fit
Panel as shown using four 1/4-20 button head bolts (#9)
and flat washers (#10). Make sure the slot for the MAF
sensor is on the left side when looking from this view.
6. Install the Quick Fit Assembly onto the top of the
factory airbox base sliding the four tabs on the panel
into the slots on the base and then latching the three
factory latches. Slide the factory intake tube over the
MAF tube and tighten the factor y hose clamp as
shown.
7. Reinstall the MAF sensor into the Airaid Adapter
Tube using two 8-32 x 3/8” button head screws (#11).
Do Not Use The Factory Screws !
8. Install the Airaid Premium Filter (#1) onto the adapt-
er tube and tighten the hose clamp. Next install the
weather strip (#5) onto the top of the Quick Fit panels
as shown.
Component Identification
1. Airaid Premium Filter 1
2. MAF Adapter Tube 1
3. Front Panel 1
4. Rear Panel 1
5. Weather Strip 16 1/2” 1
6. 6-32x5/16” Screw 4
7. #6 Flat Washer 4
8. 6-32 Keps Nut 4
9. 1/4-20 Button Head Bolt 4
10. 1/4” Flat Washer 4
11. 8-32x3/8” Button Head Screw 2
12. #20 Torx Security Bit 1
A.
B.
C.
9. Double check your work!
Make sure there is no foreign material in the
intake path. Make sure all clamps, hoses,
bolts, and screws are tight.
intake path. Make sure all clamps, hoses,
bolts, and screws are tight. Periodically check
the tightness of all hose clamps.
10. Re-connect the negative battery
cable!
Full color instructions can be viewed on our web site at Airaid.com. Use the Product Search function to find your part number, and click View Details.
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