Part Location Diagram of 90503089 DeWALT Motor and Gearbox
See part 5 in the diagram
( Grid squares measure 1x1 inch )

Motor and Gearbox 90503089

Manufactured by:
DeWALT
ERP Number:
ERP10185408
Part Number:
90503089
Original Equipment Manufacturer ?
$32.28
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

15 - 30 mins 

(1 rated repair) ?

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Troubleshooting

This part works with the following brands:
  • Black and Decker
This part works with the following products:
  • Cordless Drill
  • Boring Machine
Part# 90503089 replaces these:
90503089,

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Customer Repair Instructions

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A Bit Difficult 

15 - 30 mins 

(1 rated repair) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Motor sparked and drill quit working

Edward from Montgomery, Alabama

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
90503089
1 Lay drill on bench and open the drill shell by removing the black Philips head screws
2 Lift up the shell leaving other side and motor laying as they are, be careful of the two springs at battery connector.
3 Disconnect the 2 wires on the back of the motor.
4 Open the chuck all the way and looking inside you can see th e screw holding the chuck
5 Remove this screw which is a #15 Torq head and is reverse threaded
6 Unscrew the chuck from the motor shaft and screw it on to new motor
7 Secure it with the reverse threaded screw and place the motor on the shell
8 Connect the two wires noting the red mark on the motor to show polarity.
Replace the shell and install the the phillips head screws removed in step one.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP10185408
Manufacturer Part Number: 90503089
Brand Model Number Description
Black and Decker CDC1800 Cordless Drill - Cordless Drill
Black and Decker CDC180A Cordless Drill - Cordless Drill
Black and Decker CDC180AK Cordless Drill - 18V Cordless Drill
Black and Decker CDC180ASB Cordless Drill - 18V Cordless Compact Drill
Black and Decker CDC18SB-2 Boring Machine - 18v Compact Drill