What FD004 Covers
FD004 is a hanger-and-flap kit, not a bare bracket. The hanger arm is stainless, formed to a 45-degree angle, and runs 30 inches — the common length for tractor and trailer flap positions. Bolt spacing at the mount is 2-1/2 inches, which is what decides whether it drops onto your existing frame holes or not.
The 45-degree angle is functional, not cosmetic. It kicks the flap outboard and back so spray clears the drives instead of packing the frame rail, and it lets the flap ride flatter at highway speed instead of ballooning forward and slapping the tire. Straight hangers on a truck spec'd for angled ones will sit the flap too close and chew the edges.
Listing specs show unit quantity of one kit. Material shows stainless for the hanger with the flap element listed separately as silicone-type compound on the spec sheet — check the listing spec block against what you're replacing if flap durometer matters to you, since flap and hanger are two different materials in one kit.
Why FD004 And 02224LLR Cross
FD004 is the PartStop number. 02224LLR is the cross-reference number carried on the same part in other catalogs. They cross because the parts share the dimensions that actually control fitment: 30-inch hanger length, 45-degree bend, and 2-1/2 inch mounting bolt spacing. Same form, same mounting footprint, same job.
Mud flap hangers are dimensional parts, not electronically coded ones. There is no calibration, no serial matching, no truck-side software that cares which number is stamped on the arm. If the bolt centers line up and the arm length and angle match what came off, the hanger mounts and the flap hangs where it should.
02224LLR is listed here for identification only. PartStop is an aftermarket seller and is not affiliated with, endorsed by, or authorized by any original equipment manufacturer. The number is here so you can confirm you're looking at the same part you have in your hand.
Check Before You Order
Measure before you buy. Put a tape on the bolt centers at the frame bracket — you're looking for 2-1/2 inches. Then measure the arm from mount face to flap end for 30 inches, and eyeball the bend against a square to confirm it's angled and not straight. Cross-reference is a starting point; fit is confirmed by your VIN or by the number on the old hanger.
Hangers usually fail one of three ways: the arm takes a curb or a dock and bends, the pivot seizes from salt and stops absorbing flap impact, or the flap tears out at the bolt line and the arm gets dragged. Look at the mounting bracket on the frame too — if the holes are ovaled out, a new hanger will loosen again within a few thousand miles.
FD004 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to FD004. 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
Is FD004 the same part as 02224LLR?
They cross to the same hanger configuration — 30-inch length, 45-degree angle, 2-1/2 inch bolt spacing. FD004 is our aftermarket number; 02224LLR is listed for identification only. Confirm by measuring the bolt centers and arm length on the unit you're replacing before you order.
Does FD004 come with the mud flap or just the hanger?
It's listed as a hanger plus flap kit, unit quantity one. That means you're not sourcing the flap separately for that position. If you're refreshing both sides of the truck, order accordingly and check the listing quantity so you don't end up one kit short.
Will a 45-degree hanger work where a straight one was fitted?
Not reliably. The angle changes where the flap sits relative to the tire and the frame rail. Swapping angled for straight can put the flap too close to the tread or too far outboard for your width limits. Match the angle to what came off the truck.
Not sure it fits? We check before you pay.
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.
More cross-reference guides
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Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.