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DeWALT DW939 TYPE 1 18V 6-1/2 Cordless Circular Saw dewalt logo

 DeWALT DW939 TYPE 1 18V 6-1/2 Cordless Circular Saw Parts

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 Fig # Img Part Name Availability Price
1
Armature and Fan
Armature and Fan
Part #: 392996-00SV
Note: 8 TEETH
Ships in 10 - 16 business days
 $83.46
Add To Cart
2
Magnet Ring
Magnet Ring
Part #: 388232-01SV
In stock
4 available
 $15.75
Add To Cart
3
Brush and Lead
Brush and Lead
Part #: 387558-01
Note: Sold Individually
In stock
23 available
 $6.25
Add To Cart
4
Brush Spring
Brush Spring
Part #: 445860-00
In stock
25 available
 $3.99
Add To Cart
5
Brush Ring
Brush Ring
Part #: 382178-01
In stock
7 available
 $4.46
Add To Cart
7
Trigger Switch
Trigger Switch Obsolete - Not Available
Part #: N016194
Note: Includes Figure 60
Discontinued
N/A
9
Ball Bearing (608D)
Ball Bearing (608D)
Part #: 330003-04
Note: Included In Figure 57
In stock
15 available
 $11.01
Add To Cart
11
Spindle Assembly
Spindle Assembly Obsolete - Not Available
Part #: 393000-00SV
Note: 37 TEETH
Discontinued
N/A
12
Rubber Wiper
Rubber Wiper
Part #: 393004-00
In stock
2 available
 $1.20
Add To Cart
13
Gasket
Part #: 393005-00
Ships in 10 - 16 business days
 $1.20
Add To Cart
14
Gear Case Cover
Gear Case Cover
Part #: 393007-00
In stock
2 available
 $13.47
Add To Cart
15
Screw
Screw
Part #: 330045-06
In stock
25+ available
 $1.99
Add To Cart
16
Plug Obsolete - Not Available
Part #: 032731-00
Discontinued
N/A
17
Lock,Spindle
Part #: 150389-00
Ships in 10 - 16 business days
 $2.14
Add To Cart
18
Spring
Spring
Part #: 058698-00
In stock
6 available
 $3.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
19
Bolt,Carriage
Bolt,Carriage
Part #: 098128-15
In stock
6 available
 $3.99
Add To Cart
20
Shoe Assembly
Shoe Assembly
Part #: 393009-00
In stock
2 available
 $42.80
Add To Cart
21
Shoulder Screw
Shoulder Screw
Part #: 396631-00
In stock
2 available
 $1.20
Add To Cart
22
Nut,Lock
Nut,Lock
Part #: 148641-00
In stock
7 available
 $2.99
Add To Cart
23
Bolt
Bolt
Part #: 098128-97
In stock
3 available
 $3.99
Add To Cart
24
Knob
Knob
Part #: 395889-00
In stock
14 available
 $3.99
Add To Cart
30
Upper Guard
Upper Guard
Part #: 393016-00
In stock
2 available
 $27.12
Add To Cart
31
Screw
Screw
Part #: 398987-00
In stock
2 available
 $1.20
Add To Cart
32
Spring
Spring Obsolete - Limited Quantity
Part #: 606015-00
In stock
1 available
 $1.57
Add To Cart
33
Lower Guard
Lower Guard Obsolete - Limited Quantity
Part #: 393039-00
In stock
1 available
 $11.12
Add To Cart
34
Ring,Retaining
Ring,Retaining
Part #: 150383-00
In stock
5 available
 $3.99
Add To Cart
35
Bumper
Bumper
Part #: 389132-00
In stock
1 available
 $1.20
Add To Cart
36
Shoulder Screw
Shoulder Screw
Part #: 393473-00
In stock
2 available
 $1.20
Add To Cart
39
Cap,End
Cap,End
Part #: 150386-00
In stock
5 available
 $5.29
Add To Cart
40
Plastite Screw
Plastite Screw
Part #: 330019-04
In stock
25+ available
 $1.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
41
Inn.Blade CLMP
Inn.Blade CLMP
Part #: 393040-00
In stock
4 available
 $3.99
Add To Cart
42
Out. Blade CLMP
Out. Blade CLMP
Part #: 393053-00
In stock
7 available
 $3.99
Add To Cart
43
Bolt,Blade
Bolt,Blade
Part #: 150384-00
In stock
13 available
 $3.99
Add To Cart
44
ID Label
ID Label
Part #: 396062-00
In stock
1 available
 $1.20
Add To Cart
45
Nameplate
Nameplate
Part #: 616553-00
In stock
2 available
 $1.16
Add To Cart
46
Wrench,Hex-4mm
Wrench,Hex-4mm
Part #: 98000-09
In stock
2 available
 $8.15
Add To Cart
47
Bearing,Needle
Bearing,Needle
Part #: 093128-00
Note: Included In Figure 57
In stock
12 available
 $3.99
Add To Cart
50
Ball Bearing
Ball Bearing
Part #: 330003-08
In stock
25+ available
 $11.21
Add To Cart
51
Ring,Retaining
Ring,Retaining
Part #: 037464-00
In stock
2 available
 $1.06
Add To Cart
52
Button,Lock
Button,Lock
Part #: 145350-00
In stock
4 available
 $3.99
Add To Cart
53
Clamshell
Clamshell
Part #: 395987-00
In stock
6 available
 $34.85
Add To Cart
54
Sleeve
Sleeve
Part #: 445217-02
In stock
10 available
 $2.82
Add To Cart
55
Screw
Screw
Part #: 448269-00
In stock
2 available
 $1.20
Add To Cart
56
Baffle,Fan
Baffle,Fan
Part #: 150370-00
Ships in 10 - 16 business days
 $4.87
Add To Cart
57
Gearcase Assembly
Part #: 611971-00
Note: Includes Figures 9, 47
Ships in 10 - 16 business days
 $28.68
Add To Cart
Fig #ImgPart NameAvailabilityPrice
59
Screw
Screw
Part #: 098003-11
In stock
2 available
 $1.20
Add To Cart
60
Board,Terminal
Board,Terminal Obsolete - Not Available
Part #: 285371-00
Note: Included In Figure 7
Discontinued
N/A
100
Edge Guide
Edge Guide
Part #: 381091-00
In stock
8 available
 $8.38
Add To Cart
101
Nut,Wing
Nut,Wing Obsolete - Not Available
Part #: 84317-00
Discontinued
N/A
102
Spring
Spring
Part #: 381905-00
In stock
5 available
 $3.99
Add To Cart
104
Thumb Screw
Thumb Screw
Part #: 609301-00
In stock
4 available
 $3.99
Add To Cart
800
Grease
Grease
Part #: 286436-00
Note: 1 LB
In stock
2 available
 $109.27
Add To Cart
856
Blade
Blade
Part #: 628425-01
Note: 16 TEETH
In stock
7 available
 $10.75
Add To Cart
861
Kit Box
Kit Box
Part #: 395328-00
In stock
2 available
 $49.05
Add To Cart
867
Battery Cap
Battery Cap
Part #: 645221-00
In stock
19 available
 $1.99
Add To Cart

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Saw Parts  Trim Saw Parts

Repair Guides
Power Tool Care and Maintenance 101
Power Tool Care and Maintenance 101

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Discussion
Discussion for the DeWALT DW939 TYPE 1 18V 6-1/2 Cordless Circular Saw

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rick
Question: Switch

rick

What is the fix for a new switch on the dw939?
Robert Blackburn
Reply: Switch

Robert Blackburn

Need a new switch for saw
Greg
Question: Saw Quit

Greg

My DW939 quit. I smelled some smoke. Do you think it is repairable? How do I test the components?
Gordon Gould
Question: DW 939 Slipping Saw Blade

Gordon Gould

I can't keep the saw blade from slipping on the arbor shaft. The blade is not keyed as the lock washer is. I've tightened it as far as it will go and the blade still slips. How do I fix it?
Randy
Reply: DW 939 Slipping Saw Blade

Randy

Take the black end cap (pn 39) off so you can see the end of the armature shaft. Turn the blade by hand and see if that small shaft is turning. Mine stripped the gear on the other end of the armature shaft and the blade is actually free-wheeling. I could be wrong but I bet this is your problem.
k
Question: Dw939

k

How do you remove the retaining ring?
Mark
Reply: Dw939

Mark

Hi k,

I am guessing your are referring to item #34 on the parts diagram. It is a spring type retaining ring. If you look at the edge of it closely you will see that it is wound like a spring with a couple of layers. Take a small screwdriver and separate the layers apart. then slide the screwdriver, in between the layers, around the retainer. This will lift the retainer up so you can pull it off of the hub.

Good luck with your repair!

-Mark
dbeier@nctc.net
Question: Dewallt Cordless Circular Saws

dbeier@nctc.net

hi. i am looking to buy a dewalt 18v cordless circular saw, mainly this brand because it is good and also because i already have the batteries and charger. can someone tell me the difference between the dc 390 and the dw 939? thanks...
cmoorejack
Reply: Dewallt Cordless Circular Saws

cmoorejack

Hey,
The DW939 is a totally redesigned saw with a lot better quality. all the internal parts are different from the dc390...but along comes with that is it costs more to repair..!
Hope this has been helpful..
Craig
dbeier@nctc.net
Reply: Dewallt Cordless Circular Saws

dbeier@nctc.net

I called makita and they said buy the dc 390, because that the dw 939 was discontinued. But you got me going now because the dw 939 sounds like a better tool. At ewarehousedirect .com they have both tools reconditioned, the dc390 for 39.99 and the dw939 for 89.95. I thought the dw939 cost more because it was older and availability was less, but maybe it cost more because be cause its better. What do you think?

Thanks dave...
cmoorejack
Reply: Dewallt Cordless Circular Saws

cmoorejack

Hey dave,
it is because it is a better tool..parts should be still be available for it for a while even if it is discontinued..go for the good one..!
Craig
gabes413
Reply: Dewallt Cordless Circular Saws

gabes413

does anyone know how many amp the motor is for the dw939?
ifix2ls
Reply: Dewallt Cordless Circular Saws

ifix2ls

e-Bay sells lots of DeWalt tools seperately, no batteries or chargers. Hole lot cheeper and new or referbished.
Good Luck,
mike
regpaquet
Reply: Dewallt Cordless Circular Saws

regpaquet

My saw has trouble even cutting through piece of plywood. tried a new blade, new battery, and yes it was charged. Could it be the brushes, and if so how would i know they were worn out. I pulled them out and looked at them but they dont look all that worn.
Accessories
Accessories for the DW939

Standard Saw Blades:
See more standard saw blades 
A-85092
6-1/2" ATB 5/8" Arbor 24 Tooth Saw Blade
$32.05

DW9154
6-1/2" 5/8" Arbor 24 Tooth Circular Saw Blade
$26.43

CBCL618A
6-1/2" 5/8" Arbor 18 Tooth Circular Saw Blade
$21.01

fancyboxy