Item 7138521 has must read information.
Comments: Replaces P/N 7114754 on the 8042. Works on the following models: 5028, 6036, 8042, 10042 and 10054. Additional parts are required for some models, see below: When ordering for an 8042, P/N 7114604 is required. When ordering for a 10042, P/Ns 7138521, 7114604 and 7099923 are required. When ordering for a 10054, P/Ns 7138521, 7114604 and 7115114 are required. 
Attachments: 7138521 

HARNESS WIRING CONSOLE

$2,002.77
Net Item: Yes

Item Number:
7138521

Shipping Dimensions:
Length: 11.5  Width: 11.5  Height: 6  Weight: 6.6

Unit of Measure:
EA
Consult Factory:
Yes
Shipping Type:
Parcel
HARNESS WIRING CONSOLE - 7138521