Power Transfer Unit Components

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Power Transfer Unit Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Power Transfer Unit Alignment Sleeve
2	Power Transfer Unit Face Seal - O-Ring
3	Power Transfer Unit Case
4	Power Transfer Unit Locating Pin [2x]
5	Power Transfer Unit Cover Housing Seal
6	Power Transfer Unit Input Shaft Bearing Race- Front
7	Power Transfer Unit Input Shaft Bearing- Front
8	Power Transfer Unit Input Shaft Seal- Front
9	Power Transfer Unit Input Shaft
10	Power Transfer Unit Vent Hose
11	Power Transfer Unit Idler Gear Shaft Bearing- Front
12	Power Transfer Unit Idler Gear Shaft Bearing Race- Front
13	Power Transfer Unit Idler Gear Shaft Bearing Race Shim- Front
14	Power Transfer Unit Idler Gear Shaft Tube O-ring- Front
15	Power Transfer Unit Input Shaft Bearing- Rear
16	Power Transfer Unit Input Shaft Bearing Race- Rear
17	Power Transfer Unit Idler Gear Shaft Bearing Race Shim- Rear
18	Power Transfer Unit Input Shaft Seal- Rear
19	Power Transfer Unit Vent Hose Connector
20	Power Transfer Unit Extension Housing
21	Power Transfer Unit Fill Plug
22	Power Transfer Unit Extension Housing Bolt
23	Power Transfer Unit Idler Gear Shaft Tube O-ring- Rear
24	Power Transfer Unit Idler Shaft Tube
25	Power Transfer Unit Idler Gear Shaft Bearing Race Shim- Rear
26	Power Transfer Unit Idler Gear Shaft Bearing Race- Rear
27	Power Transfer Unit Idler Gear Shaft Bearing- Rear
28	Power Transfer Unit Idler Gear Shaft
29	Power Transfer Unit Intermediate Drive Shaft - Model Dependent
30	Power Transfer Unit Intermediate Drive Shaft Bearing
31	Power Transfer Unit Intermediate Drive Shaft Bearing Retaining Ring [2x]
32	Power Transfer Unit Intermediate Drive Shaft Bearing Retainer
33	Power Transfer Unit Cover to Intermediate Drive Shaft Seal
34	Power Transfer Unit Half Shaft Seal - O-Ring
35	Power Transfer Unit Half Shaft Retainer Clip
36	Power Transfer Unit Heat Shield Bolt - Model Dependent
37	Power Transfer Unit Heat Shield - Model Dependent
38	Power Transfer Unit Propeller Shaft Retainer
39	Power Transfer Unit Propeller Shaft Seal - O-Ring
40	Power Transfer Unit Rear Output Shaft Seal
41	Power Transfer Unit Rear Output Shaft Nut
42	Power Transfer Unit Rear Output Shaft Bearing
43	Power Transfer Unit Rear Output Shaft Bearing Race
44	Power Transfer Unit Rear Output Shaft Bearing Spacer
45	Power Transfer Unit Rear Output Shaft Housing Bolt
46	Power Transfer Unit Rear Output Shaft Housing
47	Power Transfer Unit Rear Output Shaft Shim
48	Power Transfer Unit Rear Output Shaft Housing Seal (O-ring)
49	Power Transfer Unit Rear Output Shaft Bearing Race
50	Power Transfer Unit Rear Output Shaft Bearing
51	Power Transfer Unit Rear Output Shaft
52	Power Transfer Unit Drain Plug