What FD013 Actually Is
FD013 is a hanger-and-flap kit, not a bare arm. You get the formed steel hanger with the 45-degree bend, a 30-inch working length, and the flap, so you aren't matching a new arm to a chewed-up flap. Bolt spacing is 2-1/2 inches, which is what you measure center-to-center on the mounting holes at the frame end.
The arm is heavy-gauge formed steel with a spring-loaded pivot. That pivot is the point of the design: when the flap catches a curb, a dock plate, or a snowbank, the arm gives and returns instead of folding. Finish is powder coat or zinc plating depending on the run, both aimed at surviving salt and brine spray on winter routes.
Installation is bolt-on through existing frame holes. No welding, no drilling, and it comes back off if you need to swap a trailer around. Unit quantity is one kit. Confirm what you're replacing before you order — count your hanger positions so you know how many kits the truck or trailer actually needs.
Why 02224LLR Crosses To FD013
02224LLR is listed as a cross-reference to FD013 because the two share the dimensions that decide whether a hanger bolts up: 30-inch length, 45-degree angle, and 2-1/2 inch bolt spacing. Mud flap hangers are a form-and-function part. If the arm length, the bend angle, and the hole pattern match, the flap hangs in the same plane and the mounting hardware lines up with the same frame holes.
That's the whole basis of the cross. There's no electronics, no calibration, no torque-sensitive interface. What changes between hanger part numbers is length, angle, hole spacing, and whether the pivot is fixed or spring-loaded. Get those four right and the part does the same job in the same location.
02224LLR is listed here for identification only. PartStop is not affiliated with, endorsed by, or authorized by any OEM. Use the number to identify the part, then confirm fit against the number stamped or tagged on the old hanger, or against the VIN. A cross-reference is a starting point, not a fitment guarantee.
Check This Before Ordering
Pull the old hanger and measure. Center-to-center on the mounting holes should read 2-1/2 inches. Measure the arm from the frame face to the outboard end for the 30-inch length, and check the bend — a 45-degree arm angles down and back, so the flap hangs behind the tire rather than straight down. A 90-degree straight-drop hanger is a different part.
Look at why the old one failed. Bent arm from impact means the pivot seized or was never sprung — check that the new one moves freely before you hang the flap. Rust-through at the frame bracket means water sat in the mounting holes; clean the frame face and use fresh hardware. Cracked flaps alone don't need a hanger, but a kit gets both matched.
Also check clearance at full suspension travel and at trailer turn. A 30-inch hanger swings wide on tight yard maneuvers. If the last set was clipping the landing gear or a fuel tank step, measure the position before you bolt on the same geometry again.
FD013 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to FD013. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| Cross-Reference | 02224LLR |
Frequently asked questions
Does FD013 come as a pair or a single hanger?
Unit quantity listed is one. Check your listing quantity against the number of hanger positions you're replacing before ordering. Most trucks need matched hangers left and right, so count your mounting points and order accordingly rather than assuming a set.
Will FD013 fit if my old hanger is stamped 02224LLR?
02224LLR is listed as a cross-reference to FD013 based on matching length, angle, and bolt spacing. That's a strong starting point, but it isn't a fitment promise. Measure your bolt spacing at 2-1/2 inches and confirm the 30-inch, 45-degree geometry against your old arm before you commit.
Can I use this if my frame doesn't have existing holes?
This kit is designed as a bolt-on into factory frame holes. If your frame is bare at the mounting location, you'll need a separate bracket or frame plate — drilling a truck frame rail is not something to do casually, and many fleets prohibit it. Verify your mounting provisions first.
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Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
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