Easy
15-30 minutes
Motor Housing Assy. 90570298N
OEM part for: Black and Decker
Part Number: 90570298N
$19.39
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 1 machine
Black and Decker
LST136B (Type 2) 40v Lith Str Trimmer View Diagrams & Manuals
This item works with the following types of products:
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Easy repair! Parts were an exact replacement!
Fast shipping, parts were exact replacement. will shop here again!
Guest -
June 28, 2022
Verified Purchase
part fit and worked great
received the parts quickly and they fit and worked very good
Guest -
February 1, 2022
Verified Purchase
very happy
perfect replacement part. quick shipping
Guest -
September 25, 2021
Verified Purchase
great service, always the right part
good fit easy to install
frank -
June 3, 2020
Verified Purchase
The part was exactly as described & a perfect
The part was just as described & a perfect fit
Guest -
May 12, 2020
Verified Purchase
Exact replacement...same plastic as the original part.
Yes the part fits perfectly and I had no issue disassembling the old black plastic motor housing with the replacement silver colored housing. The old silver housing used on previous models does fit and replace the new black housing of the Lithium models.
So why 4 stars? Because the part is exactly the same as the original (except the old one was black and the new one silver) which means, the one I just replaced will be broken in a year or so too. :o(
Look at it this way, if I knew that these plastic housings "burn out" over a fairly short usage time (20 hours a year..maybe?) , would I have bought this B&D Model in the first place? Probably not.
So due to the quality, of the or lack of it in the replacements part I gave it a 4 star.
As someone had described, the metal bearings are pressed into a plastic races molded into the motor housing which is cheap and as we know...the plastic race can't the heat or movement against a metal bearing.
This isn't eReplacement parts issue in any way...it's a B&D's issue. Call it planned obsolescence?
I AM happy that these replacement parts are priced fairly cheaply, because if they were more expensive I probably would have trashed the whole unit.
Guest -
August 2, 2021
Verified Purchase
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Verified Purchase
eReplacementParts Team
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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.
Long grass had wrapped around the gear assembly shaft, got hot and melted the motor housing bearing holder. With no solid support the gear assembly misaligned and the metal motor gear shaved off much
John - June 28, 2018
👍 5 of 5 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
1. Remove the string guard
2. Remove all screws holding the damaged motor housing together.
3. Pry off one half of the damaged housing to expose the motor and gear assembly.
4. Remove the gear assembly from the other half of the damaged motor housing.
5. Remove two screws from the motor power cord hold down plate to free the motor cord from the damaged motor housing assy.
6. Remove the other half of the damaged housing to expose the motor.
7. Place the motor into the new motor housing half.
8. Secure the motor power cord in the new housing by screwing the motor power cord hold down plate.
9. Insert the new gear assembly into the new motor housing assembly half
10. Place the remaining new half over the motor and gear assembly.
11. Make sure you have the head rotation release button positioned properly
12. Screw the two motor housing halves together
13. Replace the string guard.
2. Remove all screws holding the damaged motor housing together.
3. Pry off one half of the damaged housing to expose the motor and gear assembly.
4. Remove the gear assembly from the other half of the damaged motor housing.
5. Remove two screws from the motor power cord hold down plate to free the motor cord from the damaged motor housing assy.
6. Remove the other half of the damaged housing to expose the motor.
7. Place the motor into the new motor housing half.
8. Secure the motor power cord in the new housing by screwing the motor power cord hold down plate.
9. Insert the new gear assembly into the new motor housing assembly half
10. Place the remaining new half over the motor and gear assembly.
11. Make sure you have the head rotation release button positioned properly
12. Screw the two motor housing halves together
13. Replace the string guard.
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Gear assy bearing housing melted (common problem)
John - August 8, 2022
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
The gear assembly bearing is a press fit into the motor housing. I had to place the bearing as far into the motor housing bearing holder as it would go, then screw the two halves of the motor housing together. This pushed the gear fully into the bearing holder.
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Housing worn
steve - August 14, 2019
Tool Type
Grass Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
Removed old housing. Installed new one.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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