Owners manual

INSTALLATION INSTRUCTIONS AND PARTS LIST

VEHICLE APPLICATION:

MODEL 251720 (12” X 20”) & 251723 (12” X 23”) FRONT OR REAR MUDGUARDS

2017 AND NEWER FORD SUPER DUTY SERIES TRUCKS

1. READ INSTRUCTIONS COMPLETELY AND CHECK TO MAKE SURE THAT ALL REQUIRED PARTS

(LISTED ON SERVICE PARTS LIST) ARE ON HAND BEFORE STARTING THE INSTALLATION.

MOUNTING 251720/251723 MUDGUARDS ON THE FRONT OF THE VEHICLE: (SEE FIG. 1)

2. REMOVE THE TWO FASTENERS HOLDING THE ROCK GUARD TO THE BOTTOM OF THE FENDER.

THESE WILL NOT BE REUSED. NOTE: IF THE VEHICLE HAS A FACTORY FENDER FLARE USE A

9/32” DRILL BIT AND DRILL A HOLE AT EACH OF THE ROCK GUARD FASTENER LOCATIONS.

3. USING TWO M4.2 X 30MM SEMS SCREWS (ITEM #13), TWO BLACK FENDER WASHERS (ITEM #6)

ATTACH THE MUDGUARD (TO THE FENDER AS SHOWN IN FIG. 1. LEAVE THESE FASTENERS

LOOSE AT THIS TIME. NOTE: FOR VEHICLES WITH FACTORY FENDER FLARES USE TWO 8-15 X

1.75 PAN HEAD SCREWS (ITEM #8), TWO SST FLAT WASHERS (ITEM #9) AND TWO BLACK

FENDER WASHERS (ITEM #6) INSTEAD OF THE M4.2 X 30MM SEMS SCREWS.

4. USING A 1/4-20 X 1.5” ALUMINUM HEX HEAD SCREW (ITEM #3), A 1/4” ALUMINUM FLAT WASHER

(ITEM #5), A BLACK FENDER WASHER (ITEM #6) AND A 1/4-20 ALUMINUM LOCK NUT (ITEM #4)

ATTACH A SST Z-CLIP (ITEM #11) TO THE INBOARD CORNER OF THE MUD GUARD. LEAVE LOOSE

AT THIS TIME.

5. POSITION THE MUD GUARD IN ITS FINAL POSITION AND LOCATE THE TOP MOUNTING

LOCATION FOR THE MUD GUARD. USING A 9/32” DRILL BIT, DRILL A HOLE THROUGH THE

FENDER LIP.

6. USING A 1/4-20 X 1.5” ALUMINUM HEX HEAD SCREW (ITEM #3), A 1/4” ALUMINUM FLAT WASHER

(ITEM #5), A BLACK FENDER WASHER (ITEM #6), AND A ¼-20 ALUMINUM LOCK NUT (ITEM #4)

ATTACH THE MUD GUARD TO THE FENDER AS SHOWN IN FIG. 1.

7. LOCATE THE Z-CLIP FROM STEP FOUR AGAINST THE WHEEL WELL LINER AND USING A 9/32”

DRILL BIT, DRILL A HOLE THROUGH THE WHEEL WELL LINER. ATTACH THE Z-CLIP TO THE

WHEEL WELL LINER USING A 1/4-20 X 1.5” ALLUMINUM HEX HEAD SCREW (ITEM #3), A ¼”

ALUMINUM FLAT WASHWER (ITEM #5), A BLACK FENDER WASHER (ITEM #6) AND A ¼-20

ALUMINUM LOCK NUT (ITEM #4)

8. ADJUST THE MUD GUARD SO THAT IT IS LEVEL AND UPRIGHT AND TIGHTEN ALL FASTENERS.

NOTE: IT IS RECOMMENDED TO START WITH THE TOP FASTENER. NOTE: BE CAREFUL TO

NOT OVER TIGHTEN FASTENERS

9. REPEAT FOR LEFT SIDE OF VEHICLE.

552983 SHEET 1 OF 4 21SEP16

PAGE 1
INSTALLATION INSTRUCTIONS AND PARTS LIST VEHICLE APPLICATION: MODEL 251720 (12” X 20”) & 251723 (12” X 23”) FRONT OR REAR MUDGUARDS 2017 AND NEWER FORD SUPER DUTY SERIES TRUCKS 1. READ INSTRUCTIONS COMPLETELY AND CHECK TO MAKE SURE THAT ALL REQUIRED PARTS (LISTED ON SERVICE PARTS LIST) ARE ON HAND BEFORE STARTING THE INSTALLATION. MOUNTING 251720/251723 MUDGUARDS ON THE FRONT OF THE VEHICLE: (SEE FIG. 1) 2. REMOVE THE TWO FASTENERS HOLDING THE ROCK GUARD TO THE BOTTOM OF THE FENDER.
PAGE 2
MOUNTING 251520 / 251523 MUD GUARDS ON THE REAR OF THE VEHICLE. (SEE FIG. 2) 10. REMOVE THE TWO PLASTIC FASTENERS HOLDING THE ROCK GUARD TO THE FENDER. THESE WILL NOT BE REUSED. NOTE: IF THE FACTORY FENDER FLARE COVERS THESE FASTENERS USE A 9/32” DRILL BIT AND DRILL A HOLE AT EACH OF THESE LOCATIONS. 11. REMOVE THE FACTORY SPLASH GUARD BOLT AND INSTALL A .360” X 1.5” NYLON WASHER (ITEM #7) AND THE SUPPORT BRACE (ITEM #10) AS SHOWN IN FIGURE 2. 12. USING TWO 1/4-20 X 1.
PAGE 3
PAGE 4