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DeWALT DC988 Type 1 18V Cordless Hammer Drill

DeWALT DC988 Type 1 18V Cordless Hammer Drill Parts

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We Sell Only Genuine DeWALT ® Parts.

DeWALT DC988 Type 1 18V Cordless Hammer Drill

DeWALT DC988 Type 1 18V Cordless Hammer Drill Parts

Page A
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 Fig #
1
Clamshell Set
 
No Longer Available [ More Info ]
Part Number: 620711-02SV
Discontinued
Not Available


2
End Cap
 $5.40
Part Number: 620747-00
In Stock, 18 Available
Ships within 1 business day

3
Bit Clip
 $2.99
Part Number: 148354-03
In Stock, 10 Available
Ships within 1 business day

4
Screwdriver Bit
 $2.99
Part Number: 607918-41
In Stock, 25+ Available
Ships within 1 business day

Note: P#2/S#8
5
Nameplate
 $3.99
Part Number: 645166-00
In Stock, 19 Available
Ships within 1 business day

Note: DC988 TYPE 1
6
Forward/Reverse Button ( Fits the Marquette Switch)
 
No Longer Available [ More Info ]
Part Number: 634728-00
Discontinued
Not Available

Note: Use Switch 152274-19

7
VSR Switch
 $77.83
Part Number: 152274-22
In Stock, 2 Available
Ships within 1 business day

Note: Incl. Item 6,20,21
8
Motor Adaptor
 $3.99
Part Number: 626494-00
In Stock, 1 Available
Ships within 1 business day

9
Motor and Pinion
 $58.90
Part Number: 396505-22SV
In Stock, 25+ Available
Ships within 1 business day

Note: Incl. 22 - Includes Figure 22
10
Torx Screw
 $1.99
Part Number: 682211-00
In Stock, 13 Available
Ships within 1 business day

Note: M3 X 16mm T10
11
Transmission
 
No Longer Available [ More Info ]
Part Number: 397892-05SV
Discontinued
Not Available

Note: Incl. 12

12
Detent Shifter
 $3.99
Part Number: 608060-00
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

13
Keyless Chuck
 $31.75
Part Number: N196034
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Note: Jacobs 4000 Non-Carb
14
Dewalt Logo Label
 $3.99
Part Number: 395657-00
In Stock, 3 Available
Ships within 1 business day

15
Gear Case Assembly
 $81.43
Part Number: 399102-01SV
In Stock, 1 Available
Ships within 1 business day

Note: Incl. 18, 28 - Includes Figures 18, 28
16
Screw,Plastic
 $1.99
Part Number: 330019-49
In Stock, 7 Available
Ships within 1 business day

Note: M3x16 T10
17
Reverse Thread Chuck Screw
 $2.99
Part Number: 605256-01
In Stock, 25+ Available
Ships within 1 business day

Note: Lh
18
Cam Return Spring
 $9.80
Part Number: 399059-00
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Note: Included In Figure 15
19
MTR LWire Guide
 $3.99
Part Number: 603529-00
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

20
Lead Wire
 $3.99
Part Number: 398978-00
In Stock, 6 Available
Ships within 1 business day

Note: Purple, Only Used on Original Non-Sealed Motor.
21
Lead Wire Assembly
 $3.99
Part Number: 398979-01
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Note: Only Used on Original Non-Sealed Motor.
22
Brush Box
 $7.80
Part Number: 603754-01
In Stock, 25+ Available
Ships within 1 business day

Note: Only Used on Original Non-Sealed Motor. - Included In Figure 9; Sold Individually
23
Side Handle
 $6.08
Part Number: 646594-00
In Stock, 6 Available
Ships within 1 business day

Note: Not Supplied
26
Screw,Base
 $2.99
Part Number: 330019-00
In Stock, 11 Available
Ships within 1 business day

Note: M3.12 X 16mm T10
28
Spindle
 $47.90
Part Number: 611904-00SV
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Note: Included In Figure 15
861
Kitbox
 $34.99
Part Number: 660141-00
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Note: Dc056 Kitbox (Optionl)
866A
DeWALT 18V Ni-Cd XR Power Tool Battery
 $178.00
Part Number: 651034-01
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Note: Dc9099
866B
Dewalt 18 Volt Battery (XRP, Ni-Cd)
 $215.10
Part Number: 389795-23
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Note: 18 Volt
867
Battery Cap
 $1.99
Part Number: 645221-00
In Stock, 25+ Available
Ships within 1 business day

Note: Not Included W/Unit
871A
DeWALT 7.2V-18V NiCd - NiMh - Li-Ion Battery Charger
 $150.33
Part Number: DC9310
In Stock, 10 Available
Ships within 1 business day

Miscellaneous Parts
 Fig #
871B
DeWALT 7.2V - 18V Charger
 $112.48
Part Number: 388683-12
In Stock, 2 Available
Ships within 1 business day

Note: Acc. Dw9107
Drill Parts  Hammer Drill Parts  Cordless Drill Parts
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Power Tool Care and Maintenance 101

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This video explains steps for how to remove threaded-on chucks and taper-fit drill chucks, as well as steps for removing a spindle from an open-center chuck.

Drilling, Fastening, and Hammering Power Tools
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This article lists the major categories of drilling, fastening, and hammering tools, and explains the basic applications, types, and features of each.

Removing And Replacing DeWALT Drill Transmissions

This video explains how to carefully remove the transmissions of DeWALT drills and drivers, and how to replace them again.

Accessories
Accessories for the DeWALT DC988

Questions & Answers

I bought this 18 V DeWalt the clamshells broken or the handle part and when I do put a battery in it and started it seems very weak and start to smoke what do I need to replace give me the price and availability I can order it as soon as possible
Paul for model number DC 988
Hello Paul, thank you for writing. You will want to consider the Brush Box part 603754-01 and the Motor and Pinion part 396505-22SV for your model to fix the weak power and smoking. The replacement Side Handle is part 646594-00, but unfortunately, the Clamshell Set is discontinued and is no longer available. We have no known replacement information in our system. We recommend you contact DeWALT directly to see if they have recently released a new substitute. Please feel free to get back in touch with us to place an order if they provide a substitution part number. Thank you.
Discussion
Discussion for the DeWALT DC988 Type 1 18V Cordless Hammer Drill

Discussion is closed. To ask our experts a question about a part, use the Q&A feature on our product pages.
Question: DC988 Lube & Switch Troubles...

VBC

What lube/grease for the internals of a DC988 Type 1 also I was wondering when troubleshoot the VSR switch with a volt meter what kind of readings should you get Thanks
Hi VBC,
The lube you can use a little wheel bearing grease.Don't put too much as it will leak out on to the armature commutator. As far as the voltage from the switch,you should get 18-20 static voltage when the trigger is pulled full open.Hope that helps.Good luck.
Tinker
Question: DC988 Slow

RogerHSr

I have dropped my DeWalt DC988 drill and is now running very slow and making the battery's over heat. What do I need to check/repair.
Hi RogerHsr,
You need to remove the four screws on the back cover then remove the cover and look at the brush cartridges to see if they were knocked out of their socket. A number of time I've seen them knocked out and setting in side ways with a little bit of the brush riding on the commutator and making just enough contact to allows the tool to run.If this is the case just slide it back in the socket.Hope that helps.Good luck.
Tinker
Question: Dewalt Dc988 - Torque Collar Iss...

aquabill

I can't get the torque adjustment collar into the drill or hammermill function, what gives?
Hi aquabill,
This seems to have been an issue with the detent pin in a lot of these drills. Some times you can run the drill in reverse while rotating the selector ring in to drill mode. Some times if you switch from 1 to 2 to 3 gear and run the tool it will free up the pin.Also by loosing the front screws about 1 turn of the way out and lightly turning the ring it will free the pin.But be very careful not to loosen the four front screws too much as the rear transmission plate will pop out and not allow you to tighten the screws without taking the transmission completely out.Just keep trying and in a good many of the cases it will just start working again.Hope this helps.Good luck.
Tinker
Question: Dewalt Chuck Issues

ducky

I have a dewalt dc988 18v hammer drill. I'm pretty sure that my chuck is stripped badly. I was able to remove a stuck drill bit, but i am unable to open the chuck enough to access the left handed screw. The chuck will close all the way but will only barely open. If I could open it enough to even get a bit extention in there I could salvage the tool or remove the chuck. Any ideas?
Hi Ducky,You will have to cut off the chuck outer case and cut off the ring nut.This will allow the pawls to be pushed out and you will then be able to reach the screw.Hope that helps.
Tinker
Thanks Tinker, I was hoping to avoid that, but I kind of figured that was my last recourse. Thanks again for the info, Ducky.
Question: Dc988 Clutch

Chris

I can't get the clutch adjustment ring to go past 22. It won't go to drill or hammer. Is there an easy fix?
Mine does this too. I have found that if you turn the clutch to the lowest setting and then hold it so that it slips, then you can turn it back to drill or hammer.
Chris and or Karl, I had the same problem and thanks to Karl it worked. Still need to look into why this is so. Seems like something is to blame for this. Guess i'll check with the guys at ereplacement
Hi Guys,
The DC988 had a number of issues with the transmission.The problems were clutch slippage,sticking rotator rings and jumping out of gear.there was never any service bulletin about the problem.Look at the bottom of the drill where the battery goes in and look for a date code.It will start with a 20xx xx-xx. The first 4 digits is the year the tool was made the second will be the week and i think the last where it was made.The transmissions have a three year warranty so if your tool fall within the three years you can get a replacement transmission under warranty. Hope this helps.Good luck.
Tinker
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