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Repair Parts Home    Power Tool Parts    Makita Parts    Makita Sander Parts    Makita BO4550 Finishing Sander Parts
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 Makita BO4550 Finishing Sander Parts

Page A

 Fig # Part # Img Part Name Availability Price Qty
800423142-7
Sponge Rubber
In stock
25+ available
 $2.92
1643552-4
Brush Holder 5-8
In stock
10 available
 $1.46
2CB75
Carbon Brush Set CB-75
In stock
25+ available
 $5.83
3211016-2
Ball Bearing
In stock
3 available
 $11.00
4611566-1
Armature 115V
Ships in 5 - 8 business days
 $35.79
5182902-3
Housing Set
In stock
2 available
 $13.91
6639302-3
Field
Ships in 5 - 8 business days
 $10.20
7253214-2
Flat Washer 9
Ships in 5 - 8 business days
 $1.46
8211092-6
Ball Bearing 629DDW
In stock
11 available
 $11.00
9265871-4
Tapping Screw BT M4X16
Ships in 5 - 8 business days
 $0.34
11241658-8
Fan 63
In stock
4 available
 $4.38
12213051-6
Dust Seal 10
In stock
1 available
 $1.46
13211066-7
Ball Bearing
In stock
12 available
 $11.00
14410752-9
Baffle Plate
In stock
1 available
 $2.92
15410918-1
Foot
In stock
25+ available
 $4.38
Fig #Part #ImgPart NameAvailabilityPrice
16342986-5
Clamper
In stock
11 available
 $2.92
17251364-7
Pan Head Screw M4X14 Obsolete - Not Available
Discontinued
$0.00N/A
18262512-3
Rubber Sleeve 48
Backorder:
No ETA.
 $1.46
19253825-3
Flat Washer 6
In stock
2 available
 $1.17
20912117-6
Countersunk Head Screw M4X12
In stock
13 available
 $0.34
21321869-2
Lever
In stock
13 available
 $1.46
22-A151427-8
Sander Pad - Felt (Includes Felt and Backing Plate)
In stock
25+ available
 $10.32
22-B151404-0
Sander Pad - Hook & Loop (Includes Pad and Backing Plate)
In stock
25+ available
 $13.91
25660066-8
Power Supply Cord #18-2-1.83
In stock
19 available
 $13.46
29651527-9
Switch 8400K2
In stock
6 available
 $9.20
30182902-3
Housing Set
In stock
2 available
 $13.91
31265876-4
Tapping Screw BT 4X40
In stock
2 available
 $0.67
32265875-6
Tapping Screw Bit 4X25
In stock
4 available
 $0.34
33265872-2
Tapping Screw BT 4X50
In stock
2 available
 $0.67
34654078-1
Terminal Ring
Ships in 5 - 8 business days
 $1.46
Fig #Part #ImgPart NameAvailabilityPrice
400163247-8
Punch Plate Obsolete - Not Available
Discontinued
 $0.00N/A
402166027-1
Dust Bag
In stock
20 available
 $13.46

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Repair Stories
Symptom:
Worn Part
Parts Used:
Part Number:
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Entry Date:2013-11-25 16:37:54
3 of 4 customers found these instructions helpful
felt pad wore out, replaced it with the sponge rubber pad
Peal off old pad clean off surface with carb cleaner let dry for 30 min stick on new pad
Did these repair instructions help you?
Symptom:
Broken Base
Parts Used:
Part Number:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Entry Date:2014-04-10 09:29:48
2 of 3 customers found these instructions helpful
Base of a finishing sander
Remove four screws, remove sanding pad and replace new base/pad over bearing and replace four screws.
Did these repair instructions help you?
Symptom:
Missing Part
Parts Used:
Part Number:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Entry Date:2013-10-07 16:40:28
0 of 0 customers found these instructions helpful
lost original metal punch plate,and replaced screws.
For all those that have lost the metal punch plate for their Makita 1/4 sheet palm sander, you are in luck!
The original Makita part is unavailable (\"obsolete\"). After years of searching I found a eRepacement part that works just fine. Metabo part # 343392820 is plastic, not steel, but is a perfect fit! .
Did these repair instructions help you?
Discussion
Discussion for the Makita BO4550 Finishing Sander

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1302972
Question: Punch Plate(163247-8

1942craig

Where can I find this part
WJA
Reply: Punch Plate(163247-8

WJA

Hello 1302972,

We had a customer that was also looking for the Makita 163247-8 Punch Plate. He ordered the Metabo 343392820 Hole Punch. He said that other than being made of plastic, it worked perfect.

-WJA
MAKITAPARTS
Question: MODEL # B04550; FOOT

MAKITAPARTS

Question, the lever/clamp does not hold the sandpaper. Will a new foot solve this problem. If so which part number do I need?

Thanks
Tinkerdave
Reply: MODEL # B04550; FOOT

Tinkerdave

Hi ,
Replace 15,16,21,22, and while you have it apart you might want to replace 13.These are all parts that have high stress loads and to do a clean repair they should all be replaced.Hope that helps.Good luck.
Tinker
1136156
Question: Plate Andpad

1136156

I HAVE AN OLDER MODEL BO4550 SANDER MY BOTTOM PLATE IS METTAL WITH A RUBBER PAD. CAN I GET THE SAME PLATE WITH RUBBER BOTTOM.I DO NOT CARE FOR THE FELT PAD.I DONT THINK IT WILL LAST AS LONG.IF NOT WILL THE HOOK AND LOOP WORK.
WJA
Reply: Plate Andpad

WJA

Hello 1136156,

There is a sponge rubber pad still available. It is part number 423142-7 it has a sticky back which you remove the paper to adhere it to your pad assembly. If you need a pad assembly. You'll need to order either 151427-8 or the 151404-0. And remove the felt pad or the hook and loop pad. I think you will have much better luck just using the hook & loop pad assembly.

-WJA
WJA
Reply: Plate Andpad

WJA

Hello 1136156,

There is a sponge rubber pad still available. It is part number 423142-7 it has a sticky back which you remove the paper to adhere it to your pad assembly. If you need a pad assembly. You'll need to order either 151427-8 or the 151404-0. And remove the felt pad or the hook and loop pad. I think you will have much better luck just using the hook & loop pad assembly.

-WJA
243351
Question: BO4556

243351

Hello, My BO4550 will no longer hold paper and the new clamp system on the BO4556 looks like a good option for me. Will it work?
Thanks, Jim.
WJA
Reply: BO4556

WJA

Hello Jim,

I am sorry to say that the paper holder systems are designed quite a bit bit differently. And you cannot interchange the system from one to the other. The best thing to do is just replace the parts you need to repair the clamp system on your BO4550.

Hope this helps,
-WJA
rcsec
Question: Makita B04550 Sheet Sander

rcsec

The "Punch Plate" for this sander (Makita B04550) is no longer available; pokes holes in sand paper so the dust is better collected in bag. Is there a substitute available from another model? In all the diagrams I've looked at I couldn't find an alternate part number (163247-8) so I'm wondering if there is much difference in the Makita line. For instance I have a B04550 but the punch plate is still available for a B04556 - I'm wondering if this will work?

If not, is it that hard to make one, and what is a good "spike" to poke holes in the sandpaper?

Thanks,
Ray
WJA
Reply: Makita B04550 Sheet Sander

WJA

Hello rcsec,

It looks like to me that the punch plate for the Makita BO4556 would work for your BO4550. You might have to do a little modifying to it. It's just a guess on my part though.

Good luck,
-WJA
Hi. I have an older model 4550. I notice that I can buy either the backing pad with felt or 22b. What is the 22b? Also - is this an exact replica since I purchased another that was supposed to be compatible but it did not hold the sandpaper. Thanks
WJA
Reply: Sander Pad And Backing Plate

WJA

The item number 22-A, part number 151427-8 felt pad. I'm pretty sure was on the original BO4550. The item number 22-B, part number 151404-0 is a pad that accepts hook and loop paper, so you don,t have to use the paper clamps as you would with the felt pad. Since the manufacture no longer makes the BO4550. I would have to know the model number you purchased to answer the second part of your question.

-WJA
gilles
Question: Foam Pad

gilles

I have the B04550 MODEL with the foam pad, this is worn out what do you have to replace this with?
cccjimmaui
Question: BO4550

cccjimmaui

Is their a way to change the hook-up for the va***n bag to allow me to use a shop vac hose instead.
Thanks
WJA
Reply: BO4550

WJA

Hello cccjimmaui,

I have yet to see an adapter to fit that style of connection in any of the accessories that Makita offers. Or any other manufacture that I can think of.

-WJA
shaver
Question: Punch Plate

shaver

How can I get a punch plate, item # 400, part# 163247-8
Dave
Question: B04550 Case

Dave

I can not get the case open to put on a new cord. I have removed the 4 screws, but can't get the case to budge. Seems to be bound up toward the bottom. Something that I am missing here? Thanks.
BobKelley
Reply: B04550 Case

BobKelley

I have the same problem with opening the case. Please let me know if you find out anything and I will do same. link removed
Fred
Question: Sander Pad

Fred

I have a BO4551 Sander with a hook & loop pad. Can I change the pad to the clip on type?
LK
Question: Replacement Rubber Pad

LK

I have a Makita Model #B04550, with clamps on the side. The rubber pad is worn out. Can you give me the P/N to order a new pad? Is P/N 151427-8 the replacement and will it work on my model?
Regards,
LK
Jim R
Reply: Replacement Rubber Pad

Jim R

The part you mention in your inquiry is listed for the B04550, but is specified as being a "felt" base. Mine also has a rubber base and is worn out. I really do not want felt because I prefer using the adhesive backed sand-paper. They do not list a rubber pad for my model. I have the question as to what is available to allow use of the adhesive paper.
Joe Hicks
Question: 4550 Sander Pad

Joe Hicks

My Makita sander is model 4550 and the pad is worn out. It looks like rubber to me, not felt, and it uses the self-adhesive sandpaper, not clamps. What replacement pad do I need? (What is Hook & Loop?)
Chris
Reply: 4550 Sander Pad

Chris

I have a 4530 that uses the 6in adhesive pad (#7430321) or the 5in adhesive pad (7430313). They are both rubber pads that accept adhesive paper. There are 4 mount holes in these pads. The distance between the mount holes are ....2 1/16 in. on center one way and 2 11/16 on center the other way. Hope this helps. Now you can help me by confirming the mount hole centers on your 4550. I can no longer buy the 4530 and I am looking for a replacement sander that accepts adhesive discs. Adhesive discs are cheap, however the hook and loop are very expensive.
...Chris
Kermit
Question: On A BO4550

Kermit

I need to replace the brush, when I opened the housing the white wire was loose. Where does it go? Or is there any where I can go to get a wiring diagram. Thanks. Kermit
EWR
Reply: On A BO4550

EWR

The white wire right from the cord connects to the brush toward the back of the unit. The black goes to the switch on the front of the unit
chipchap
Question: Makita Sander Model B04550

chipchap

What parts do I have to replace on the sander when the sandpaper will not stay in place? The hold down springs are very week.
I have the model that has the rubber pad. Can I put the pad that has the hooks on it so I can use the new type of sandpaper? Than you for any help.
cmoorejack
Reply: Makita Sander Model B04550

cmoorejack

Hey chipchap,
Replacing the clampers should take care of your issue..Part # 342986-5
Yes, you can change over the pad to the hook and loop.. part# 151404-0
Makita BO4550 Parts List and Diagram : eReplacementparts.com
hope this helps..:)
cmoorejack
chipchap
Reply: Makita Sander Model B04550

chipchap

[QUOTE=cmoorejack;3793]Hey chipchap,
Replacing the clampers should take care of your issue..Part # 342986-5
Yes, you can change over the pad to the hook and loop.. part# 151404-0
Makita BO4550 Parts List and Diagram : eReplacementparts.com
hope this helps..:)
cmoorejack"

Thanks for your help cmoorejack. I will get this unit running again.
fancyboxy