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Bosch 11304 (0611304139) Demolition Hammer

Bosch 11304 (0611304139) Demolition Hammer Parts

Page A
 Fig #
4
Bearing Housing
 $77.75

Part Number: 1615805054

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $77.75
5
Deep-Groove Ball Bearing
 $36.77

Part Number: 1610900015

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $36.77
6
Screw Plug
 $21.09

Part Number: 1615500214

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $21.09
7
Insulating Housing
 $28.93

Part Number: 1615108104

In Stock, 1 Available

Ships within 1 business day
 $28.93
8
Fan
 $16.51

Part Number: 1616610091

In Stock, 4 Available

Ships within 1 business day
 $16.51
9
Hexagon Nut
 $3.99

Part Number: 1613313000

In Stock, 4 Available

Ships within 1 business day
 $3.99
11
Felt Washer
 $3.99

Part Number: 1610108013

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $3.99
12
Supporting Disc
 $3.99

Part Number: 1610102616

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $3.99
15
Needle-Roller Bearing
 $31.95

Part Number: 1610910091

In Stock, 2 Available

Ships within 1 business day
 $31.95
19
Eccentric Shaft
 $232.65

Part Number: 1616110033

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $232.65
21
Cylindrical Gear
 $155.50

Part Number: 1616318009

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $155.50
22
Cylindrical Gear
 $133.80

Part Number: 1616328036

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $133.80
23
Needle-Roller Assembly
 $6.90

Part Number: 1610913005

In Stock, 10 Available

Ships within 1 business day
 $6.90
24
Gear Cover
 $133.80

Part Number: 1615500323

In Stock, 2 Available

Ships within 1 business day
 $133.80
25
Connecting Rod
 $94.02

Part Number: 1612001040

In Stock, 2 Available

Ships within 1 business day
 $94.02
26
Needle-Roller Bearing
 $28.93

Part Number: 1610910092

In Stock, 2 Available

Ships within 1 business day
 $28.93
27
O-Ring
 $2.03

Part Number: 1610210033

In Stock, 25+ Available

Ships within 1 business day
 $2.03
28
Hammer Piston
 $442.40

Part Number: 1618700043

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $442.40
30
Retainer
 $3.99

Part Number: 1614601039

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $3.99
32
O-Ring
 $7.92

Part Number: 1900210156

In Stock, 12 Available

Ships within 1 business day
 $7.92
33
Piston Pin
 $6.90

Part Number: 3613101500

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $6.90
34
Striker
 $50.63

Part Number: 1618710039

In Stock, 1 Available

Ships within 1 business day
 $50.63
35
O-Ring
 $7.92

Part Number: 1610209007

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $7.92
36
O-Ring
 $4.50

Part Number: 1900210166

In Stock, 3 Available

Ships within 1 business day
 $4.50
37
Guide Tube
 
No Longer Available [ More Info ]

Part Number: 1615806029

Discontinued

Not Available

38
Guide Bushing
 $21.09

Part Number: 1610220009

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $21.09
39
Compression Spring
 $5.96

Part Number: 1614619005

In Stock, 2 Available

Ships within 1 business day
 $5.96
40
Intermediate Flange
 $94.02

Part Number: 1615700017

In Stock, 1 Available

Ships within 1 business day
 $94.02
41
O-Ring
 $5.19

Part Number: 1610210008

In Stock, 25+ Available

Ships within 1 business day
 $5.19
42
Striker Pin
 $155.50

Part Number: 1613123003

In Stock, 2 Available

Ships within 1 business day
 $155.50
44
Retaining Bracket
 $208.54

Part Number: 1618045026

In Stock, 3 Available

Ships within 1 business day
 $208.54
45
Locking Bolt
 $50.63

Part Number: 1613103004

In Stock, 2 Available

Ships within 1 business day
 $50.63
46
Clamping Sleeve
 $2.03

Part Number: 2917760187

In Stock, 22 Available

Ships within 1 business day
 $2.03
47
O-Ring
 $9.13

Part Number: 1900210172

In Stock, 8 Available

Ships within 1 business day
 $9.13
48
Locking Cover
 $16.51

Part Number: 1610516007

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $16.51
49
Insulation Tubing
 $2.03

Part Number: 1610707000

In Stock, 1 Available

Ships within 1 business day
 $2.03
50
Protection Sleeve
 $2.99

Part Number: 3600421500

In Stock, 2 Available

Ships within 1 business day
 $2.99
51
Grommet
 $4.50

Part Number: 1610703019

In Stock, 2 Available

Ships within 1 business day
 $4.50
52
Fan Cover
 $71.12

Part Number: 1615500324

In Stock, 2 Available

Ships within 1 business day
 $71.12
53
Hood
 $107.28

Part Number: 1600A00C0N

In Stock, 9 Available

Ships within 1 business day
 $107.28
55
Power Cord
 $35.47

Part Number: 3604460507

In Stock, 5 Available

Ships within 1 business day
 $35.47
55/1
End Splice
 $2.99

Part Number: 1900452003

In Stock, 10 Available

Ships within 1 business day
 $2.99
56
Grommet
 $14.90

Part Number: 1610703011

In Stock, 8 Available

Ships within 1 business day
 $14.90
57
Switch Cover
 $9.13

Part Number: 1615500212

In Stock, 5 Available

Ships within 1 business day
 $9.13
58
On-Off Switch
 $68.61

Part Number: 1617200108

In Stock, 4 Available

Ships within 1 business day
 $68.61
59
Intermediate Plate
 $94.02

Part Number: 1615700041

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $94.02
60
Insulating Cap
 $3.99

Part Number: 1615500330

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $3.99
62
Switch-Pawl
 $5.96

Part Number: 1612026011

In Stock, 4 Available

Ships within 1 business day
 $5.96
63
Handle
 $36.77

Part Number: 1615132010

In Stock, 3 Available

Ships within 1 business day
 $36.77
64
Rubber Torsion Bar
 $19.29

Part Number: 1616334000

In Stock, 7 Available

Ships within 1 business day
 $19.29
65
Toothed Shaft
 $59.07

Part Number: 1613060005

In Stock, 22 Available

Ships within 1 business day
 $59.07
67
C-Clip
 $3.99

Part Number: 2916660023

In Stock, 1 Available

Ships within 1 business day
 $3.99
68
Rubber Buffer
 $5.19

Part Number: 1613465001

In Stock, 2 Available

Ships within 1 business day
 $5.19
69
Intermediate Plate
 $133.80

Part Number: 1615700042

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $133.80
70
Handle
 $36.77

Part Number: 1615132011

In Stock, 15 Available

Ships within 1 business day
 $36.77
71
Nameplate
 
No Longer Available [ More Info ]

Part Number: 161111A004

Discontinued

Not Available

73
Self-Tapping Screw
 $2.03

Part Number: 1603435036

In Stock, 2 Available

Ships within 1 business day
 $2.03
74
Disc Spring
 $3.99

Part Number: 2916160009

In Stock, 25+ Available

Ships within 1 business day
 $3.99
75
Compression Spring
 $6.90

Part Number: 3614640501

In Stock, 25+ Available

Ships within 1 business day
 $6.90
76
Fastening Plate
 $3.99

Part Number: 3611034500

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $3.99
84
Insulating Plate
 
No Longer Available [ More Info ]

Part Number: 1611099003

Discontinued

Not Available

85
Brush Holder
 $31.95

Part Number: 1614336045

In Stock, 2 Available

Ships within 1 business day
 $31.95
86
Axle Pin
 $19.29

Part Number: 1610300033

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $19.29
87
Deep-Groove Ball Bearing
 $26.52

Part Number: 1610900027

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $26.52
88
Shaft Sealing Ring
 $9.13

Part Number: 1610283016

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $9.13
89
Insulating Plate
 $2.99

Part Number: 1610009008

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $2.99
94
Sealing Plate
 $3.99

Part Number: 1611015021

In Stock, 9 Available

Ships within 1 business day
 $3.99
95
Connecting Cable
 $5.96

Part Number: 1614431030

In Stock, 1 Available

Ships within 1 business day
 $5.96
96
Connecting Cable
 $9.13

Part Number: 1614448037

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $9.13
97
Hexagon Nut
 $3.99

Part Number: 2915011007

In Stock, 2 Available

Ships within 1 business day
 $3.99
99
Hexagon Nut
 $2.99

Part Number: 3613313500

In Stock, 14 Available

Ships within 1 business day
 $2.99
102
Sheet Metal Screw
 $2.99

Part Number: 2910211025

In Stock, 5 Available

Ships within 1 business day
 $2.99
104
Hex-Socket-Head Cap Screw
 $2.99

Part Number: 2910141201

In Stock, 18 Available

Ships within 1 business day
 $2.99
105
Screw
 $2.99

Part Number: 2914551188

In Stock, 25+ Available

Ships within 1 business day
 $2.99
106
Microencapsulated Screw
 $2.03

Part Number: 2914551189

In Stock, 25+ Available

Ships within 1 business day
 $2.03
107
Hex-Socket-Head Cap Screw
 $2.03

Part Number: 2910141242

In Stock, 9 Available

Ships within 1 business day
 $2.03
108
Torx Oval-Head Screw
 $2.03

Part Number: 2603490023

In Stock, 6 Available

Ships within 1 business day
 $2.03
109
Hex-Socket-Head Cap Screw
 $2.03

Part Number: 2910141248

In Stock, 7 Available

Ships within 1 business day
 $2.03
110
Hex-Socket-Head Cap Screw
 $2.99

Part Number: 2910141356

In Stock, 15 Available

Ships within 1 business day
 $2.99
111
Microencapsulated Screw
 $3.99

Part Number: 2914550034

In Stock, 25+ Available

Ships within 1 business day
 $3.99
112
Sheet Metal Screw
 $2.99

Part Number: 2910211236

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $2.99
114
Round-Head Grooved Pin
 $2.03

Part Number: 2917721034

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $2.03
119
Reference Plate
 $2.03

Part Number: 1601110058

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $2.03
131
Reference Plate
 
No Longer Available [ More Info ]

Part Number: 1601110618

Discontinued

Not Available

801
Motor Housing
 $832.97

Part Number: 1617000851

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $832.97
802
Field
 $208.54

Part Number: 1614220157

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $208.54
803
Armature
 $403.83

Part Number: 1614011092

In Stock, 14 Available

Ships within 1 business day
 $403.83
813
Needle-Roller Bearing
 $31.95

Part Number: 1610910035

In Stock, 2 Available

Ships within 1 business day
 $31.95
820
Needle Bearing
 $26.52

Part Number: 1610910094

Ships In 9 - 15 Business Days

Ships in 9 - 15 business days
 $26.52
843
Tool Holder
 $612.37

Part Number: 1617000428

In Stock, 1 Available

Ships within 1 business day
 $612.37
844
Retaining Bracket
 $208.54

Part Number: 1618045026

In Stock, 3 Available

Ships within 1 business day
 $208.54
854
Switch Housing
 $36.77

Part Number: 1617000858

In Stock, 7 Available

Ships within 1 business day
 $36.77
858
Protective Cap
 $19.29

Part Number: 1610591001

In Stock, 3 Available

Ships within 1 business day
 $19.29
859
Slotted Pan-Head Screw
 $2.99

Part Number: 2910091118

In Stock, 3 Available

Ships within 1 business day
 $2.99
861
Mounting Plate
 $11.86

Part Number: 1617000429

In Stock, 16 Available

Ships within 1 business day
 $11.86
879
Spiral Spring
 $3.99

Part Number: 1614652001

In Stock, 8 Available

Ships within 1 business day
 $3.99
881
Torx Oval-Head Screw
 
No Longer Available [ More Info ]

Part Number: 2912771120

Discontinued

Not Available

882
Spring Lock Washer
 
No Longer Available [ More Info ]

Part Number: 2916699130

Discontinued

Not Available

883
Carbon Brush Set
 $25.58

Part Number: 1617000425

In Stock, 25+ Available

Ships within 1 business day
 $25.58
884
Insulating Plate
 
No Longer Available [ More Info ]

Part Number: 1611099003

Discontinued

Not Available

890
Un. Flange-Mtd. Motor
 $716.04

Part Number: 1617000848

In Stock, 3 Available

Ships within 1 business day
 $716.04
Miscellaneous Parts
895
Gear Box Grease
 $107.28

Part Number: 1615430016

In Stock, 2 Available

Ships within 1 business day
 $107.28
895
Grease
 $36.77

Part Number: 1615430015

In Stock, 8 Available

Ships within 1 business day
 $36.77
897
Service Pack
 $68.44

Part Number: 1617000426

In Stock, 7 Available

Ships within 1 business day
 $68.44
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Accessories
Accessories for the Bosch 11304

Questions & Answers

What could be the cause of not having enough power /torque to break the concrete?
Paul for model number Bosch Jack hammer Model 0611304139 asked on 2019-07-08
Hello Paul, In most cases this is caused by old carbon brushes part number 1617000425.There is also a service pack recommended with different seals and bolts part number 1617000426. Hope this helps
my bosch hammer model # 0611247 is not hitting, I have already change the bushings
Edmund for model number 0611247 asked on 2019-10-01
Hello Edmund and thank you for writing. We recommend either of these two kits for your model; Oil Reservoir- 1615437511 Service Pack- 1617000446 Hope this helps!
Discussion
Discussion for the Bosch 11304 (0611304139) Demolition Hammer

Discussion is closed. To ask our experts a question about a part, use the Q&A feature on our product pages.
Question: Bosch Brute Trigger

1132020

Brute Hammer came in not working, inspection revealed field wire disconnected plugged it back in hammer worked sent it on it's way. Came back again said it quit working within a minute, inspected brushes(looked good) checked switch one side was not working, Bosch uses a switch that has an extra throw (set of contactors) on it so move the wires to there, tool works sent it out. Came back again said it quit working in 5 minutes, switch was burned again. My question, is there anything that can be going off in the armature or field that can cause the switch to keep burning?
Hi,
Not really.Sounds like the inside rockers are burned on the switch and heating the switch up when its under a light load.Id replace the switch assembly and that should fix the problem. Hope that helps.Good luck.
Tinker
WJA
Question: Torgue Setting On Microencapsula...

steveg

Hello steveg,

When replacing the 2914550034 microencapsulated screw. The torque setting should be between 55-60 foot pounds.

-WJA
Question: Bosch 11304-no Data Tag-034 Or 1...

TedGeneralRental

As the title line says...I am trying to identify my hammer without a data tag. I need a service pack, but don't know which one it is.
WJA
Hello TedGeneralRental,

The motor assembly between the 034 and 139 is one of the main differences, but that is a little difficult to tell without disassembling the tool. There is one difference on the outside of the tool which will tell them apart though. It is the guide tube ( item #37 on both the part diagrams). By looking at both diagrams you will be able see the differences, and hopefully identify your hammer.

Hope this helps,
WJA
HeyTedGeneralRental,

The outside of the piston housing on the 139 has very deep ridges while the 134 is smooth just like the drawings show. Hope this with WJA's explanation helps.
Question: Bosch 11304 Braker Repair

dieselMEN

I have a bosch 11304 Hammer. it seems to have lost its punch the motor and piston rod seen to work fine. I looked at the striker and piston there is no visible damage. although there is Grease every where. what give the striker power? is the grease supposed to be behind the striker in the cylinder? is the grease causing a suction, not allowing the striker to move freely?

thanks for any info
Mark
Mark, The piston causes high pressure in the cylinder forcing a slug down the cylinder which hit the striker pin which hits the bit.The striker pin has two o-rings and moves back and forth in short strokes.This most likely where your problem lies.You have grease leaking from the transfer case and this is why it coming out the link removed a service kit and replace the grease but don't replace the striker o-rings unless their damaged as replacement o-rings will have to go through a break in run of a couple of hours to get the hammer action working good. Hope this helps.
Thanks for your response, I have ordered the service kit and I am uncertain to where to put the grease. I currently have grease in the motor housing, (connecting rod area) the hammer piston (inside and out) and the Guide tube. I will clean the old grease out as best as possible.
What is the procedure for replacing the new grease?
Do I just squeeze the content of the tube in the motor housing (connecting rod area) and reassemble?

Is the o-ring you say not to replace #32 of the internal flange?
Bosch 11304 Parts List and Diagram - (0611304034) : eReplacementParts.com

Any help will is appreciated
Thanks
Mark
Hi Mark.No you don't want to replace # 1610210033 ref #27. and yes you put the grease in the crankcase where the connecting rod is.the kit I believe gives you instructions on most of that. Hope that helps.
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