57-2542
FORD
*1988-95 F-150 / Bronco
V8-5.0L / 5.8L
*1989 F-250
V8-5.0L
* Vehicles that do not come
equipped with mass air sensor.
X
NOTE: This kit was not designed
to fit vehicles with a body lift.
TOOLS NEEDED:
Flat Blade Screwdriver
5mm Allen
10mm Wrench
11mm Wrench
10mm Socket
13mm Socket
Ratchet
Extension
Drill
1/4 Drill Bit
PARTS LIST:
Description
Qty.
Part #
Description
Qty.
Part #
Description
Qty.
Part #
A
hose clamp, #36
4
08530
I
8mm wave washer
1
08239
Q
Heat shield
1
074008
B
hose, 2-3/8"idX2" L
2
08405
J
8mm X 1.25 X 35mm bolt
1
07784
R
Edge trim 30"L
1
102489
C
K&N intake tube (CP)long
1
087082
K
6mm nuts, nylock
5
07553
S
bolt; 6mm-1.00 X 20mm hex
4
07865
D
hose, 5/8"X13" L, black
1
08602
L
1/4"id X 5/8"od flat washer
7
08275
T
fender washer, 1/4"idX1"od
2
08160
E
support bracket, w/out A/C
1
07165
M
nylon cup washer; black
1
08180
U
bracket (L)
1
070932
F
support bracket, with A/C
1
07164
N
bolt; 6mm f/h/a
1
08376
V
bracket (L)
1
07879
G
spacer, .625"od X .375" long
1
07849
O
saddle bracket
1
078855
W
air filter
1
RC-3690
H
5/16"id X 5/8"od flat washer
1
08276
P
hose clamp, #60 ss
1
08628
X
hose clamp #60
1
08624
If you need any assistance please call 1-800-858-3333 to speak with a representative
in our Customer Service Center before returning the product.
NOTE: FAILURE TO FOLLOW INSTALLATION INSTRUCTIONS AND NOT USING THE PROVIDED HARDWARE
MAY DAMAGE THE INTAKE TUBE, THROTTLE BODY AND ENGINE.
TO START:
1. Turn off the ignition and disconnect the negative
battery cable.
NOTE: Disconnecting the negative battery cable
erases pre-programmed electronic memories.
Write down all memory settings before
disconnecting the negative battery cable. Some
radios will require an anti-theft code to be
entered after the battery is reconnected. The
anti-theft code is typically supplied with your
owner’s manual. In the event your vehicles’
anti-theft code cannot be recovered, contact an
authorized dealership to obtain your vehicles
anti-theft code.
6. On vehicles that come equipped with A/C,
assemble the saddle bracket onto bracket (07164)
as shown.
4. Remove the fresh air intake tube from the
bottom of air box as shown.
6a. On vehicles that do not come equipped with
A/C, assemble the saddle bracket onto bracket
(07165) as shown.
2. Loosen the two hose clamps at the throttle body,
then remove the two intake tubes from the throttle
body as shown.
3. Loosen the two hose clamps at the airbox then
remove the two intake tubes from the air box as
shown.
5. Remove the crank case vent from air box then
remove the two 8mm bolts that reatin the air box
to vehicle. Then remove air box from vehicle as
shown.
NOTE: K&N recommends that customers do
not discard factory air intake
7. On vehicles that come equipped with A/C,
remove the front lower A/C mounting bolt. Then
secure the saddle bracket assemble from step 6
onto vehicle as shown.
INSTALLATION INSTRUCTIONS
Continued
7a. On vehicles that do not come equipped with
A/C, mount the saddle bracket assembly from step
6a onto the idler pully bracket as shown.
NOTE: Be sure to place the provided spacer
(07849) under the bracket.
11. Remove the nut that retains the coolant tank to
vehicle then mount the provided bracket (070932)
to tank with the nut that was removed.
16. Remove the crank case vent tube from valve
cover then connect the provided silicone hose to
the valve cover, then connect to the intake tube as
shown. Trim hose for best fit.
17. Install the air filter onto the new intake tube as
shown.
8. Secure the provided silicone hoses (08405) onto
the throttle body with the provided hose clamps as
shown.
12. Install the heat shield onto the vehicle then line
up the fresh air duct to the heat shield and mark
the two holes with a marker, then remove heat
shield from vehicle.
18. Reconnect the vehicle’s negative battery cable.
Double check to make sure everything is tight and
properly positioned before starting the vehicle.
9. Install edge trim onto heat shield as shown. Trim
if needed.
13. Remove the heat shield and drill two 1/4” holes
were you marked in the previous step.
19. The C.A.R.B. exemption sticker, (attached),
must be visible under the hood so that an
emissions inspector can see it when the vehicle
is required to be tested for emissions. California
requires testing every two years, other states may
vary.
20. It will be necessary for all K&N® high flow intake
systems to be checked periodically for realignment,
clearance and tightening of all connections.
Failure to follow the above instructions or proper
maintenance may void warranty.
ROAD TESTING:
10. Install the provided bracket (07879) onto the air
box mounting bracket as shown using one of the
the bolts that was removed in step 5.
14. Re-install the heat shield onto the
vehicle then mount the fresh air duct to the heat
shield with the provided hardware as shown.
1. Start the engine with the transmission in neutral
or park, and the parking brake engaged. Listen for
air leaks or odd noises. For air leaks secure hoses
and connections. For odd noises, find cause and
repair before proceeding. This kit will function
identically to the factory system except for being
louder and much more responsive.
2. Test drive the vehicle. Listen for odd noises or
rattles and fix as necessary.
3. If road test is fine, you can now enjoy the added
power and performance from your kit.
10a. On vehicles that come with a relay mounting
bracket cut the two tabs off for heat shield
clearance as shown.
15. Install the new K&N® intake tube onto the
throttle body, then secure the intake tube to the
saddle bracket as shown.
4. K&N Engineering, Inc., requires cleaning the
intake system’s air filter element every 100,000
miles. When used in dusty or off-road
environments, our filters will require cleaning more
often. We recommend that you visually inspect
your filter once every 25,000 miles to determine
if the screen is still visible. When the screen is no
longer visible some place on the filter element, it is
time to clean it. To clean and re-oil, purchase our
filter Recharger® service kit, part number 99-5050
or 99-5000 and follow the easy instructions.
* FREE K&N® decal To register your warranty, please see us online at knfilters.com/register. FREE K&N® decal *
• 1455 CITRUS ST., P.O. BOX 1329, RIVERSIDE, CA., U.S.A. 92502 • TECH SERVICE 800-858-3333 • FAX 951-826-4001
• e-mail:
[email protected]® • WWW: http://www.knfilters.com®
170013H
8/08/17