background image

INSTALLATION TO VTX 1800 C 
1.

Ensure that the motorcycle is on flat level ground. 

2.

It is recommended that the motorcycle sit for at least one

hour prior to installation to allow the engine to cool.

3.

Remove the three radiator mounting bollts and allow the

radiator to hang from the hoses (10mm Socket).

Install Frame Bracket

4.

From the front,  place the “U” Bolt  on the frame down

tube near the top of the engine. 

Figure 1. Loosely

install

Frame Bracket with Flat Washers and  Whizlock Nuts (1/2”
Wrench.) 

Orient assembly so Whizlock Nuts face engine.

Do not tighten. 

Figure 2. 

By National Cycle 

INSTALLATION AND OWNER’S MANUAL

P4009 

for HONDA® VTX1800 C 

NOTE: 

Right and Left side of Motorcycle is determined

while sitting on the bike. 

PARTS LIST

Index

Part No.

Description

Qty.

1

90-970100-000

Highway Bar, Left

1

2

90-970101-000

Highway Bar, Right

1

BAG 380

3

51-515720-000

Screw, M8 x 20

4

4

51-513105-000

Screw, M10-1.25 x 105

3

5

37-371590-000

Frame Bracket

2   

6

51-513050-000

“U” Bolt 

2

7

42-431010-000

Whizlock Nut, Chrome

4

8

49-490311-200

Washer, Flat

4

Ball End Hex Key, 6mm
Hex Key, 8mm
10mm and 14mm Socket
Wrench 14mm
Wrench, 1/2” 
Handle with 3/8” Drive
Torque Wrench
Service Manual 

4

2

5

7

1

6

3

8

Page1 of 2 

10-114850-000 

04/03

Figure 2

Parts List 

Figure 1

6

8

7

Note: to facilitate installation of the Whizlock Nuts to the “U” Bolt,
loosely pre-assemble the Frame Bracket to the “U” Bolt with
threaded ends of “U” facing outward. 

Once your frame
bracket is loosely
assembled, rotate
bracket so whizlock
nuts face engine.

Reviews: