Lets Start a Parts List.. Heres what I have so far.

[build4boost]

I have a couple Phantom 4s and get so frustrated going through hoops to get replacement part numbers.
I figure as a group, we should be able to make a complete list. Heres what I have so far.

1 GPS Module
2 Propeller Guard
3 Power Port Module
4 Gimbal
5
6
7 Intelligent Battery 5350mAh
8 Charging Hub (3 ports)
9 100W Power Charger
10 100W AC Power Adapter Cable (F)
11 100W AC Power Adapter Cable (UK)
12 100W AC Power Adapter Cable (USA)
13
14
15 100W AC Power Adapter Cable (JP)
16
17
18 Remote Controller
19
20
21
22
23 2312S Propeller Motor (CCW)
24 2312S Propeller Motor (CW)
25 9450S Propellers (2CW+2CCW)
26 Landing Gear
27 Body
28 Downward Vision Module
29
30
31 Mobile Device Holder
32 Vibration Absorbers Set
33 Screw Set
34 Cable Set
35 Gimbal Lock
36 Camera Flex Ribbon
37 Camera Lens Filter O2X6
38 Camera Lens Filter ND4
39 Camera Lens Filter ND8
40 Camera Lens Filter ND16
41 LED
42 Car Charger
43 Main Control Board
44 Center Control Board (Left)
45 Center Control Board (Right)
46 Multi-functional Backpack
47
48
49 LED Lens Cover
50 Remote Lanyard
51 Propeller Mounting Plates
52
53
54 HDMI Output Module
55 USB Charger
56 10pin to DC Power Cable

 

[msinger]

If you want to save some time, I already keep and maintain a P4 parts list here.

 

[build4boost]

Nice. I have all that already on my list plus more.
I dont think DJI sells any gimbal replacement parts, you have to purchase the whole thing.
But I do know every arm and motor is available aftermarket.

 

[DarkDrone 1]

Tagged for future reference.