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  Milwaukee 0420-1 (SER 851A) Cordless Hammer Drill Parts
Milwaukee Cordless Hammer Drill Replacement For Model 0420-1 (SER 851A)

Milwaukee Cordless Hammer Drill Replacement Parts For Model 0420-1 (SER 851A)

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Popular Parts for Milwaukee 0420-1 (SER 851A)

Questions & Answers for Milwaukee 0420-1 (SER 851A)

Page A
Milwaukee 0420-1 (SER 851A) Cordless Hammer Drill Page A Diagram
 Fig #
1
6-19 X .708 Pan Hd. Pt Screw T
 $3.99

Part Number:06-82-9207

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
2
Right Handle Half Obsolete - Not Available
 $5.15

Part Number:31-44-1885

Discontinued

Discontinued
 $5.15
Discontinued
3
Variable Speed Switch Obsolete - Not Available
 $47.65

Part Number:23-66-2300

Discontinued

Discontinued
 $47.65
Discontinued
4
Motor Housing Obsolete - Not Available
 $5.99

Part Number:31-50-1080

Discontinued

Discontinued
 $5.99
Discontinued
5
Gear Spacer Obsolete - Not Available
 $2.99

Part Number:45-36-1260

Discontinued

Discontinued
 $2.99
Discontinued
6
Service Nameplate Kit Obsolete - Not Available
 $2.99

Part Number:12-20-1155

Discontinued

Discontinued
 $2.99
Discontinued
7
Brush Tube
 $4.99

Part Number:22-20-0860

In Stock

In Stock
 $4.99
In Stock
 $4.99
8
Brush Assembly - Top Obsolete - Not Available
 $4.99

Part Number:22-18-0840

Discontinued

Discontinued
 $4.99
Discontinued
8A
Brush Assembly-Bottom Obsolete - Not Available
 $4.99

Part Number:22-18-0845

Discontinued

Discontinued
 $4.99
Discontinued
9
Brush Spring
Minimum Quantity of 2 Required
 $4.99

Part Number:40-50-8840

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
10
Left Handle Half Obsolete - Not Available
 $5.09

Part Number:31-44-1880

Discontinued

Discontinued
 $5.09
Discontinued
11
Field Assy Obsolete - Not Available
 $50.52

Part Number:18-01-0010

Discontinued

Discontinued
 $50.52
Discontinued
12
Service Armature Assy Obsolete - Not Available
 $70.93

Part Number:16-01-1010

Discontinued

Discontinued
 $70.93
Discontinued
13
Fan Assembly
 $3.99

Part Number:22-84-0830

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
14
6-19 X 11/16 Pan Hd. Plastite
Minimum Quantity of 2 Required
 $4.99

Part Number:06-82-7261

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
15
Ball Bearing
 $5.19

Part Number:02-04-0848

In Stock

In Stock
 $5.19
In Stock
 $5.19
16
Fiber Washer Obsolete - Not Available
 $2.99

Part Number:45-88-0355

Discontinued

Discontinued
 $2.99
Discontinued
17
Diaphragm Assembly Obsolete - Not Available
 $15.02

Part Number:28-28-1980

Discontinued

Discontinued
 $15.02
Discontinued
18
Woodruff Key
 $4.99

Part Number:06-42-0400

In Stock

In Stock
 $4.99
In Stock
 $4.99
19
.25x.43x.31 Fc Opn
 $7.80

Part Number:02-50-1611

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.80
Usually ships in 7 - 12 business days
 $7.80
20
1/8X3/8 Groove Pin 5 Obsolete - Not Available
 $2.99

Part Number:06-65-0800

Discontinued

Discontinued
 $2.99
Discontinued
21
Needle Bearing
 $5.19

Part Number:02-50-1640

In Stock

In Stock
 $5.19
In Stock
 $5.19
22
Gasket Obsolete - Not Available
 $2.99

Part Number:43-44-0900

Discontinued

Discontinued
 $2.99
Discontinued
23
Thrust Washer - Heat Treated
 $3.99

Part Number:45-88-7721

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
24
Intermediate Gear Obsolete - Not Available
 $12.69

Part Number:32-40-2260

Discontinued

Discontinued
 $12.69
Discontinued
25
Interm. Pinion Shaft Obsolete - Not Available
 $26.22

Part Number:36-66-4360

Discontinued

Discontinued
 $26.22
Discontinued
26
Spindle Gear Obsolete - Not Available
 $12.93

Part Number:32-75-3175

Discontinued

Discontinued
 $12.93
Discontinued
27
Over Lap Wave Washer Obsolete - Not Available
 $2.99

Part Number:45-88-0940

Discontinued

Discontinued
 $2.99
Discontinued
28
Gear Case Obsolete - Not Available
 $29.15

Part Number:28-14-2105

Discontinued

Discontinued
 $29.15
Discontinued
29
Ball Bearing
 $5.75

Part Number:02-04-0640

In Stock

In Stock
 $5.75
In Stock
 $5.75
30
3/16 Steel Ball
 $3.99

Part Number:02-02-0180

In Stock

In Stock
 $3.99
In Stock
 $3.99
31
Fixed Ratchet
 $7.52

Part Number:44-84-0240

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.52
Usually ships in 7 - 12 business days
 $7.52
32
Bearing Spacer Obsolete - Not Available
 $2.99

Part Number:45-36-1225

Discontinued

Discontinued
 $2.99
Discontinued
33
Rotating Ratchet Obsolete - Not Available
 $9.28

Part Number:44-84-0235

Discontinued

Discontinued
 $9.28
Discontinued
34
Shift Spacer Obsolete - Not Available
 $7.30

Part Number:45-36-1215

Discontinued

Discontinued
 $7.30
Discontinued
35
1/8 Obsolete - Not Available
 $2.99

Part Number:02-02-0120

Discontinued

Discontinued
 $2.99
Discontinued
36
Thrust Washer Obsolete - Not Available
 $2.99

Part Number:45-88-0935

Discontinued

Discontinued
 $2.99
Discontinued
37
Ball Brg. Retaining Ring
 $3.99

Part Number:34-60-0920

In Stock

In Stock
 $3.99
In Stock
 $3.99
38
Ball Bearing
 $13.34

Part Number:02-08-0510

In Stock

In Stock
 $13.34
In Stock
 $13.34
39
Compression Spring Obsolete - Not Available
 $2.99

Part Number:40-50-0220

Discontinued

Discontinued
 $2.99
Discontinued
40
Spindle Obsolete - Not Available
 $28.85

Part Number:38-50-5515

Discontinued

Discontinued
 $28.85
Discontinued
41
Retaining Ring Obsolete - Not Available
 $2.99

Part Number:34-80-2020

Discontinued

Discontinued
 $2.99
Discontinued
42
O - Ring Obsolete - Not Available
 $2.99

Part Number:34-40-4040

Discontinued

Discontinued
 $2.99
Discontinued
43
Locking Collar Obsolete - Not Available
 $2.99

Part Number:31-58-0055

Discontinued

Discontinued
 $2.99
Discontinued
44
O-Ring Obsolete - Not Available
 $2.99

Part Number:34-40-1500

Discontinued

Discontinued
 $2.99
Discontinued
45
Retaining Ring Obsolete - Not Available
 $2.99

Part Number:34-60-2125

Discontinued

Discontinued
 $2.99
Discontinued
46
Dust Shield Obsolete - Not Available
 $2.99

Part Number:45-12-0520

Discontinued

Discontinued
 $2.99
Discontinued
47
3/8" Chuck Obsolete - Not Available
 $42.98

Part Number:48-66-0400

Discontinued

Discontinued
 $42.98
Discontinued
48
Chuck Screw - L.h. Thread
Minimum Quantity of 2 Required
 $4.99

Part Number:45-04-0750

In Stock

In Stock
 $4.99
In Stock
 $4.99
49
Side Handle Obsolete - Not Available
 $3.41

Part Number:43-62-0905

Discontinued

Discontinued
 $3.41
Discontinued
50
Flange Spacer Obsolete - Not Available
 $2.99

Part Number:45-36-1255

Discontinued

Discontinued
 $2.99
Discontinued
51
7 -18x 2 Pan Hd. Screw T-20
 $3.99

Part Number:06-82-7393

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
52
Ball Bearing
 $4.99

Part Number:02-04-5130

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
53
12.0 Volt Battery Obsolete - Not Available
 $125.70

Part Number:48-11-0200

Discontinued

Discontinued
 $125.70
Discontinued
54
Brush Spring Clip
 $4.99

Part Number:22-32-0400

In Stock

In Stock
 $4.99
In Stock
 $4.99
55
Mounting Plate Obsolete - Not Available
 $2.99

Part Number:44-66-6140

Discontinued

Discontinued
 $2.99
Discontinued
56
Wave Spring Washer
 $3.99

Part Number:45-88-5615

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
Miscellaneous Parts
 Fig #
400
Warning Label Obsolete - Not Available
 $2.99

Part Number:10-15-9485

Discontinued

Discontinued
 $2.99
Discontinued
Drill Parts  Hammer Drill Parts  Cordless Drill Parts

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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.

How to Remove a Stuck Drill Chuck

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