Black & Decker 90567871N Guard Assembly – Genuine OEM Replacement String Trimmer Safety Guard
Part Number: 90567871N
Category: Outdoor Power Equipment Parts → String Trimmer Parts → Safety Guards
Type: Black & Decker 90567871N Guard Assembly – Genuine OEM Replacement String Trimmer Safety Guard
The Black & Decker 90567871N Guard Assembly is a genuine OEM replacement safety guard designed for compatible Black & Decker cordless string trimmers. This durable molded plastic guard installs over the trimmer head to help shield the operator from flying grass, debris, and trimmer line while also supporting safe trimming operation. Manufactured to original equipment specifications, it provides a direct-fit replacement for cracked, broken, or missing guards, restoring the original safety and protection of the trimmer. The 90567871N replaces the earlier 90567871C guard assembly.
Key Features & Benefits
- Part Number: 90567871N
- Genuine OEM Black & Decker replacement part
- Replacement safety guard for cordless string trimmers
- Durable impact-resistant molded plastic construction
- Helps deflect grass clippings and debris away from the operator
- Protects against accidental contact with the rotating trimmer line
- Direct-fit OEM replacement
- Manufactured to original equipment specifications
- Replaces previous part number 90567871C
Technical Specifications
Part Number: 90567871N
Manufacturer: Black & Decker
Product Type: Guard Assembly
Material: High-impact molded plastic
Application: String Trimmer Safety Guard
OEM Part: Yes
Quantity: Sold Individually
Replaces: 90567871C
Compatible Applications
The Black & Decker 90567871N Guard Assembly fits compatible string trimmers, including:
Black & Decker
- LST136 Type 1
- LST136 Type 2
- LST136B Type 2
- LST140C Type 1
It also fits select Craftsman cordless string trimmers that utilize the same OEM guard assembly, including:
- CMCST98020E1
Always verify your trimmer model, type number, and original part number before ordering to ensure proper compatibility.
Function of the Guard Assembly
The 90567871N Guard Assembly is designed to:
- Shield the operator from flying debris and grass clippings
- Help prevent accidental contact with the rotating trimmer line
- Support safe operation during trimming
- Protect nearby surfaces and landscaping from thrown debris
- Maintain the factory safety configuration
- Restore the original appearance and function of the trimmer
Using a genuine OEM replacement guard helps ensure safe operation while maintaining the trimmer's intended performance.
Common Signs Replacement Is Needed
Replace the guard assembly if you notice:
- Cracked or broken guard
- Missing guard assembly
- Loose or damaged mounting points
- Excessive wear from normal use
- Missing or damaged line-cutting blade
- Reduced protection from flying debris
A damaged or missing guard can increase the risk of injury and reduce the safe operation of the string trimmer.
Installation & Service Notes
Turn the string trimmer off and remove the battery before performing any service.
Remove the retaining screw securing the existing 90567871N Guard Assembly, then carefully unclip and remove the old guard from the trimmer head. Clean the mounting area and inspect the attachment points for damage. Position the replacement guard until it snaps securely into place, then reinstall and tighten the retaining screw. Verify the guard is firmly attached and properly aligned before operating the trimmer. Installation typically requires only a screwdriver and can be completed in just a few minutes.
Important: Always verify your trimmer model and original part number before ordering. Never operate the string trimmer without the guard assembly installed.
Maintenance Recommendations
- Inspect the guard before each use for cracks or damage.
- Keep the guard clean and free of grass buildup.
- Ensure the mounting screw remains securely tightened.
- Replace the guard if it becomes cracked or excessively worn.
- Inspect the integrated line-cutting blade for wear if equipped.
- Use genuine OEM replacement parts to maintain factory fit, operator safety, and long-term string trimmer performance.
