Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
DeWalt
Drill/Driver

Model # DCD991B TYPE 1 Official DeWalt drill/driver

Here are the diagrams and repair parts for Official DeWalt DCD991B-TYPE-1 drill/driver, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 35 parts  |
Fwd/rev Button N431555
#36

Main asy diagram

Fwd/rev button

Part #N431555

The manufacturer no longer makes this part, and there's no substitute part

Ring Gear N156100
#16

Main asy diagram

Ring gear

Part #N156100

The manufacturer no longer makes this part, and there's no substitute part

Shifter N375867
#21

Main asy diagram

Shifter

Part #N375867

The manufacturer no longer makes this part, and there's no substitute part

Side Handle N433408
#44

Main asy diagram

Side handle

Part #N433408

The manufacturer no longer makes this part, and there's no substitute part

Housing Assembly N419328
#31

Main asy diagram

Housing assembly

Part #N419328

The manufacturer no longer makes this part, and there's no substitute part

Screw 330019-52
#37

Main asy diagram

Screw

Part #330019-52

The manufacturer no longer makes this part, and there's no substitute part

O N309119
#25

Main asy diagram

O

Part #N309119

The manufacturer no longer makes this part, and there's no substitute part

Service Tool N354959
#836

Main asy diagram

Service tool

Part #N354959

The manufacturer no longer makes this part, and there's no substitute part

Sensor Assembly N404613
#7

Main asy diagram

Sensor assembly

Part #N404613

The manufacturer no longer makes this part, and there's no substitute part

Warning Label N449354
#49

Main asy diagram

Warning label

Part #N449354

The manufacturer no longer makes this part, and there's no substitute part

Parts & More