Part Location Diagram of N078437 DeWALT Sleeve
See part 12 in the diagram
( Grid squares measure 1x1 inch )

Sleeve N078437

Manufactured by:
DeWALT
ERP Number:
ERP11929419
Part Number:
N078437
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(30 rated repairs) ?

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Product Description

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This is a genuine OEM part. The DeWALT sleeve is constructed of metal, and is compatible with several impact drivers. This component is fitted in the nose cone, between the spring and washer. The sleeve secures the anvil assembly and the spring. This part is sold individually. A hex key and a screwdriver may be helpful in the repair.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • DeWALT
  • Porter Cable
This part works with the following products:
  • Impact Driver
Part# N078437 replaces these:
N078437,

Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(5 Reviews)
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Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

15 - 30 mins 

(30 rated repairs) ?
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Impact wasnt holding the bit in place

Nick from Rumney , New Hampshire

18 of 18 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
I watched your you tube video on just this repair. I know I could have done without it . But it did help out. Thank you
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We use the DeWalts for continuous use. We wear them out.

Kevin from Cumming, Georgia

12 of 12 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Pull the case apart disconnect wires from brush assy, replace brush assy attach wires.
Pop the C clip remove the washer, sleeve and spring. The ball is gone by now. replace ball, spring, washer and C clip. I take the opportunity while appart to clean the inside of the case of old dirt and grease. I re grease the gear assy in the nos e cone.

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broken spring that holds the steel ball

Don from Elma, Washington

5 of 5 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Got on you tube a guy had a step by step video watched it and followed what he did worked like a charm... It works now like a brand new driver.

https://www.youtube.com/watch?v=PQ8lSB_mP1c
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Bit kept falling out

Brian from Indiana , Pennsylvania

4 of 4 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
N089668, N078437, N078434, N019351
Removed the sleeve and installed the new spring to keep tension on the steel ball.
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Bit holder worn

Lyle from Morning Sun , Iowa

4 of 4 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
I watched the video that you have on you tube. It was a great help. I also installed the belt hook on the tool.
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Broken spring in chuck

Bill from Silver Spring , Maryland

4 of 4 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers
ereplacementparts has a great YouTube video on this repair. It was a great help. This is a copy to the link.

https://www.youtube.com/watch?v=PQ8lSB_mP1c
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Was no longer holding bits in.

Johan from Elnora, Indiana

4 of 4 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Used eReplacement\'s easy repair video on youtube! Thanks guys! Work like new!
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Spring was broken

Dion from Temple city, California

3 of 3 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Remove the hog ring with a small screwdriver
Remove the washer
Remove the compression spring
Remove the sleeve
Remove the steel ball
Remove the broken spring
Install the removed parts in reverse order
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Wouldn\'t hold bits

roy from labelle, Florida

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
I located your you tube video. It made the repair go much easier and faster than without it. Here is the copy of it for those of you that have the same problem.

https://www.youtube.com/watch?v=PQ8lSB_mP1c
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Collar would not hold bit. bottom spring broke

Kevin from Alpharetta, Georgia

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
N089668, N078437, N078434, N019351
1. Pulled snap ring with pick
2. Pull sleeve, spring, washer off. Don\'t drop the ball I have a dozen hiding on my garage floor.
3. Remove broken spring.
4. Clean parts with WD 40 wipe clean.
5. Install new spring.
6. Install ball make sure your on top of spring.
7. Slide sleeve back over anvil
8 . Install spring, washer and snap ring. this is sometimes tricky start at the flat opening on anvil using a small blade screw driver work the ring around till it falls back into the recess.
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