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Description
4243 007 1004 STIHL Cover Plate Kit 600 mm – Genuine OEM Gear Head Part
The STIHL Cover Plate Kit 600 mm (4243 007 1004) is a genuine OEM gear head protection and sealing component designed for select STIHL long-reach hedge trimmers and KombiSystem attachments equipped with 600 mm angle drive assemblies. This cover plate kit protects internal blade drive components while maintaining proper alignment and gearbox integrity.
Over time, cover plates and associated hardware may wear, loosen, or become damaged due to vibration, debris exposure, or repeated heavy-duty use. A worn or damaged cover plate can allow contamination into the gear head, increase internal wear, or compromise blade alignment. Replacing it with the correct OEM kit restores proper protection and assembly stability without replacing the entire gear head unit.
Manufactured to STIHL factory specifications, this genuine cover plate kit ensures precise fitment, secure sealing, and long-term reliability under demanding professional trimming conditions.
Product Details
OEM Part Number: 4243 007 1004
Brand: STIHL (Genuine OEM)
Part Type: Cover Plate Kit
Length Compatibility: 600 mm gear head / angle drive assemblies
Application: Gear head protection and sealing system
Condition: New Genuine OEM Part
Function
This STIHL cover plate kit is designed to:
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Protect internal gear head and blade drive components
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Maintain proper sealing against debris and contamination
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Support correct blade alignment within the angle drive assembly
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Replace worn, damaged, or missing cover plates
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Preserve long-term gearbox and blade drive performance
⚠️ A damaged cover plate can allow dirt intrusion, leading to premature gear wear or failure.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4243 007 1004
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Gear head / angle drive configuration (600 mm)
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Your unit model matches those listed below
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Application matches your STIHL illustrated parts diagram
⚠️ Gear head cover kits are model-specific — always verify by OEM part number and assembly type.
Compatibility
This OEM cover plate kit fits select STIHL long-reach hedge trimmers and Kombi attachments equipped with 600 mm adjustable angle drive assemblies, including:
Long-Reach Hedge Trimmers / Angle Drive Units (600 mm)
HL (Angle drive, adjustable thru 145°, 600 mm)
HL 145° (Angle drive, adjustable thru 145°, 600 mm)
HL 91 K (Angle drive, adjustable thru 130°, 600 mm)
HL 94 / HL 94 K / HL 94 KC-E
(Angle drive, adjustable thru 145°, 600 mm)
HL-KM 145° (Angle drive, adjustable thru 145°, 600 mm)
HLA 135 / HLA 135 K
(Angle drive, adjustable thru 145°, 600 mm)
HLA 150.0
(Angle drive, adjustable thru 145°, 600 mm)
(Exact fitment depends on production version — always verify using OEM parts diagram.)
Installation Notes
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Disconnect spark plug before servicing
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Access gear head or angle drive housing assembly
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Remove worn or damaged cover plate components
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Install new cover plate kit in correct orientation
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Inspect internal gears and lubrication during service
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Reassemble housing and torque fasteners to STIHL specifications
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Test for smooth blade operation and proper sealing
⚠️ Gear head service should be performed by a qualified technician to ensure correct alignment and lubrication.
Maintenance Tips
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Inspect gear head housing regularly for damage or grease leaks
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Maintain proper gearbox lubrication at recommended intervals
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Replace worn protective components promptly
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Keep blade drive assemblies clean from debris buildup
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Always use genuine STIHL OEM gear head kits for proper fit and durability
