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Makita BDF452HW Drill / Driver

Makita BDF452HW Drill / Driver Parts

Page A
 Fig #
1
BDF452 Name Plate
 $4.79

Part Number:862815-1

Ships in 14 - 20 business days

Ships in 14 - 20 business days
 $4.79
Ships in 14 - 20 business days
 $4.79
2
Housing Set
 $18.56

Part Number:188187-9

In Stock, 1 available

In Stock, 1 available
 $18.56
In Stock, 1 available
 $18.56
3
Tapping Screw
 $2.99

Part Number:266130-9

In Stock, 16 available

In Stock, 16 available
 $2.99
In Stock, 16 available
 $2.99
4
Speed Change Lever Assembly
 $3.99

Part Number:125366-8

In Stock, 2 available

In Stock, 2 available
 $3.99
In Stock, 2 available
 $3.99
5
Change Lever
 $2.99

Part Number:419250-0

In Stock, 25+ available

In Stock, 25+ available
 $2.99
In Stock, 25+ available
 $2.99
6
Switch
 $27.18

Part Number:650583-6

In Stock, 21 available

In Stock, 21 available
 $27.18
In Stock, 21 available
 $27.18
7
LED Circuit
 $5.75

Part Number:631735-8

In Stock, 1 available

In Stock, 1 available
 $5.75
In Stock, 1 available
 $5.75
8
Terminal
 $6.23

Part Number:643838-6

In Stock, 25+ available

In Stock, 25+ available

Note: will need to order Battery BL1830. Old battery will not work.
 $6.23
In Stock, 25+ available
 $6.23
9
Flat Head Screw
 $3.99

Part Number:251468-5

In Stock, 25+ available

In Stock, 25+ available
 $3.99
In Stock, 25+ available
 $3.99
10
Keyless Drill Chuck
 $47.89

Part Number:766027-7

In Stock, 15 available

In Stock, 15 available
 $47.89
In Stock, 15 available
 $47.89
11
Gear Assembly
 $29.09

Part Number:125348-0

In Stock, 10 available

In Stock, 10 available
 $29.09
In Stock, 10 available
 $29.09
12
Yoke Unit
 $34.72

Part Number:638425-4

In Stock, 18 available

In Stock, 18 available
 $34.72
In Stock, 18 available
 $34.72
13
Armature
 $20.35

Part Number:619198-8

In Stock, 25+ available

In Stock, 25+ available
 $20.35
In Stock, 25+ available
 $20.35
14
Brush Holder
 $4.31

Part Number:638494-5

In Stock, 4 available

In Stock, 4 available
 $4.31
In Stock, 4 available
 $4.31
15
Carbon Brush Set
 $4.91

Part Number:CB440

In Stock, 25+ available

In Stock, 25+ available
 $4.91
In Stock, 25+ available
 $4.91
16
Rubber Pin 4
 $2.99

Part Number:263032-0

In Stock, 9 available

In Stock, 9 available
 $2.99
In Stock, 9 available
 $2.99
17
Rear Cover
 $3.99

Part Number:419601-7

In Stock, 2 available

In Stock, 2 available
 $3.99
In Stock, 2 available
 $3.99
18
Tapping Screw
 $2.99

Part Number:266130-9

In Stock, 16 available

In Stock, 16 available
 $2.99
In Stock, 16 available
 $2.99
19
Housing Set
 $18.56

Part Number:188187-9

In Stock, 1 available

In Stock, 1 available
 $18.56
In Stock, 1 available
 $18.56
20
Leaf Spring
 $2.99

Part Number:232182-2

Backorder: No ETA

Backorder: No ETA
 $2.99
Backorder: No ETA
21
Heat Sink
 $2.99

Part Number:689150-0

In Stock, 5 available

In Stock, 5 available
 $2.99
In Stock, 5 available
 $2.99
22
Pan Head Screw
 $2.99

Part Number:911006-2

Ships in 14 - 20 business days

Ships in 14 - 20 business days
 $2.99
Ships in 14 - 20 business days
 $2.99
Miscellaneous Parts
 Fig #
23
Caution Label
 $3.99

Part Number:810292-1

Ships in 14 - 20 business days

Ships in 14 - 20 business days
 $3.99
Ships in 14 - 20 business days
 $3.99
26
Belt Hook
 $2.99

Part Number:346449-3

In Stock, 25+ available

In Stock, 25+ available
 $2.99
In Stock, 25+ available
 $2.99
27
Belt Hook Screw
 $2.99

Part Number:251314-2

In Stock, 12 available

In Stock, 12 available
 $2.99
In Stock, 12 available
 $2.99
1005
Battery Obsolete - Not Available
 $90.00

Part Number:BL1820B

Discontinued

Discontinued
 $90.00
Discontinued
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Accessories
Accessories for the Makita BDF452HW

Questions & Answers

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Discussion
Discussion for the

Discussion is closed. To ask our experts a question about a part, use the Q&A feature on our product pages.
Question: Makita BDF452HW Housing Set

Changger

Does the housing set include both halves?
I believe the part number is 188187-9
WJA
Hello Changger,

The Makita part number 188187-9 Housing Set, does include both halves.

-WJA
Question: 452 Won't Charge

1174248

When the battery is not in the charger the charger green light flashes. When I plug in the battery the red and green lights both flash and the battery doesn't recharge. Help! I love this drill.
WJA
Hello 1174248,

It is normal for the green light to flash when a battery is not in the charger. When you put your battery in, and both the green and red lights flash. That is telling you that you have a defective battery, perhaps one or two of the cells has gone bad. It may be time for a new battery.

-WJA
Question: Makita BDF452

huxley

I need to know how to install the leaf spring.
WJA
Hello huxley,

For your convenience we have prepared an article and video to help you with your repair. Here is the link to it.

How to Replace the Leaf Spring on a Makita Power Drill.

Hope this helps,
-WJA
WJA
Question: BDF452 High Speed Is Slower

mkellerm

Hello mkellerm,

It sounds like the high speed it starting to deteriorate in your 125348-0 Gearbox. May be time to get a new one.

-WJA
Question: Stuck Bit

alfred

Hi alfred,
If the chuck collar will not loosen the jaws you will have to used a cut off wheel and carefully cut the casing of the chuck and then cut the rotator ring for the jaws.Then you will be able to tap the jaws down far enough to remove the bit.Hope this helps.Good luck.
Tinker
Question: BDF452 Brake

bivman

My electric brake quit working, is that a function of the switch?
WJA
Hello bivman,

You are right, most of the time a defective switch will be the cause of the brake not working on your drill. Just for chance you might check your brushes before you replace your switch though.

-WJA
Question: Makita BDF452 Leaf Spring

rando

Does anyone know how to install the leaf spring that goes somehow under the speed select switch on the gearbox?

Thanks
Does anyone know how to install the leaf spring that goes somehow under the speed select switch on the gearbox?

Thanks
The drawing above is a little deceptive as to its location. It goes in the half that holds everything under the clutch. It's what makes the clicking when you adjust the clutch's position. There is a groove for it under the clutch neck where it enters the housing halves. The little bump in the middle goes up towards the clutch, t-end at the joint of the two housing halves. Hope it's not too vague or miss leading...

Tony
The drawing above is a little deceptive as to its location. It goes in the half that holds everything under the clutch. It's what makes the clicking when you adjust the clutch's position. There is a groove for it under the clutch neck where it enters the housing halves. The little bump in the middle goes up towards the clutch, t-end at the joint of the two housing halves. Hope it's not too vague or miss leading...

Tony
WJA
Hello rando,

We have prepared an article and video that I hope will answer your question.

How to Replace the Leaf Spring on a Makita Drill

Hope this helps,
-WJA
WJA
Hello rando,

We have prepared an article and video that I hope will answer your question.

How to Replace the Leaf Spring on a Makita Drill

Hope this helps,
-WJA
Link to:

How to Replace the Leaf Spring on a Makita Drill

does not open. How do I open it?
Link to:

How to Replace the Leaf Spring on a Makita Drill

does not open. How do I open it?
Question: Chuck Screw (M6x26)

Gridman

hi gridman,As a rule of thumb drills that have a forward and reverse will have a left hand thread chuck retaining screw and the chuck will be right handed. Hope that helps.
Tinker
Question: Leaf Spring

Randy

Hi,
I disassembled my drill to replace the armature. During reassembly I noticed an extra part, the leaf spring. Could you please let me know exactly where this spring goes and its installation procedure.

Thanks.
I am in the same boat. Can someone let me know?
Same problem here. Any luck?
I tried for over an hour trying to put the leaf spring as shown in the diagram and can seem to find the sweet spot.
WJA
Hello All,

We have had a number of posts regarding where that pesky little leaf spring is located in the Makita Cordless Drills. It's one of those parts that when you take a tool apart it seems to come from no where and land on your work bench, leaving you wondering where it came from. For this reason we have prepared an article and video that will help with this issue.

How to Replace the Leaf Spring on a Makita Drill.

Hope this helps,
-WJA
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