Kit Numbers
53810-00B, 53857-00B, 54258-10
This kit is used to complete the installation of a sissy bar upright on specific model motorcycles. See the P&A retail catalog or the Parts and Accessories section of (English only) for available sissy bar uprights and model fitment information.
This kit is designed to be used ONLY with Genuine Harley-Davidson sissy bar uprights.
Additional Parts Required
A sissy bar upright is needed.
Prior to installation of this Detachable Sideplate Kit, the correct Docking Hardware Kit and Directional Relocation Kit for this model motorcycle must be installed.
These items are available separately from a Harley-Davidson dealer.
Tools and Supplies Required
Loctite® 262 Threadlocker and Sealant - Red (H-D Part Number 99759-99) is required for the proper installation of this kit.
Rider and passenger safety depend upon the correct installation of this kit. If the procedure is not within your capabilities or you do not have the correct tools, have a Harley-Davidson dealer perform the installation. Improper installation of this kit could result in death or serious injury. (00308b)
Kit Contents
See Figure 5 and Table 1.
Sissy Bar Installation to Sideplates
1. See Figure 5. Insert the legs of the sissy bar upright (A) all the way into the channels (B) of the sideplates (1 and 2) as shown.
2. Apply a few drops of Loctite 262 - Red to the threads of the button head screws (4). Thread the screws into the holes in the sideplate channels, and tighten to 11–14 N·m (96–120 in-lbs).
Sissy Bar and Sideplate Installation to Docking Points
3. See Figure 1. While standing behind the motorcycle, place the left-side and right-side front sideplate notches (2) into the front docking points (4) on the fender supports (3). See Figure 2 for views of correct and incorrect sideplate engagement.
Failure to properly align the front docking points and sideplates may result in damage to the rear docking points.
1Sissy bar and sideplate assembly
2Front notch
3Right side fender support
4Front docking point
Figure 1. Place Front Notches into Front Docking Points
1Sideplate (right side)
2Right front docking point
3Correct: sideplate fully engaged in docking point
4Incorrect: sideplate NOT fully engaged in docking point
Figure 2. Sideplate Fit to Front Docking Points
1Rotary latch (2)
2Sideplate (2)
3Sideplate notch (2)
4Rear docking point (2)
5Rear docking point neck (2)
Figure 3. Lower Rear Notches Onto Rear Docking Points
4. See Figure 3. Position the rotary latches (1) over the rear docking points (4). Pull the rotary latches (1) back to their rearmost position as shown. Check to be sure the sideplate notches (3) and latches fit into the neck (5) of the rear docking points as shown. This may require some gentle squeezing or spreading of the sideplates (2).
5. Push the rear of the sideplates downward and close the rotary latches by pressing the latch levers as far forward as they will go (see Figure 4 ). A "CLICK" will be heard when the latches are in place. If the latches do not easily close, do not force. Check the sissy bar alignment again, as described in steps 3 and 4.
1Release button (2)
Figure 4. Close Rotary Latches
6. To remove the sissy bar and sideplate assembly, press the release button (1) on each side and pull the latch levers back. Carefully lift the rear of the sideplates up and pull the sissy bar assembly out of the front docking points.
Service Parts
Figure 5. Service Parts, Softail Detachable Sideplate Kit
Table 1. Service Parts
Description (Quantity)
Part Number
Sideplate, right
Not sold separately
Sideplate, left
Not sold separately
Pivot stud (2)
Not sold separately
Screw, button head (4)
Rotary latch kit, right (not shown)
Rotary latch kit, left (shown)
(both include items 6 through 9)
  • Rotary latch assembly
Not sold separately
  • Wave washer
  • Flat washer, stainless steel
  • Screw, button head
Items mentioned in text, but not included in kit.
Sissy bar upright
Channel in sideplate
Rotary latch release button