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Description
4243 007 1003 STIHL Cover Plate Kit 500 mm – Genuine OEM Gear Head Part
The STIHL Cover Plate Kit 500 mm (4243 007 1003) is a genuine OEM gearbox protection and sealing component designed for use in select STIHL long-reach hedge trimmers and KombiSystem attachments. This cover plate kit is installed within the gear head and angle drive assemblies to protect internal moving components, maintain proper alignment, and help prevent debris intrusion during operation.
Over time, cover plates and protective hardware can wear, loosen, or become damaged due to vibration, heavy trimming use, or repeated servicing. A worn or missing cover plate can expose internal gears, increase contamination risk, and accelerate gearbox wear. Replacing it with the correct OEM kit restores proper protection without replacing the complete gear head assembly.
Manufactured to STIHL factory specifications, this genuine cover plate kit ensures precise fitment, durability, and long-term reliability under demanding professional operating conditions.
Product Details
OEM Part Number: 4243 007 1003
Brand: STIHL (Genuine OEM)
Part Type: Cover Plate Kit
Length Compatibility: 500 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 components from debris
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Maintain proper sealing and assembly stability
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Support smooth blade drive operation
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Replace worn, damaged, or missing cover plates
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Help preserve long-term gearbox performance
⚠️ A damaged cover plate can allow contamination into the gear head, leading to premature wear or failure.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4243 007 1003
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Gear head / angle drive configuration (500 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 KombiSystem attachments equipped with 500 mm gear head and angle drive assemblies, including:
Long-Reach Hedge Trimmers / Kombi Attachments (500 mm)
HL (Angle drive, adjustable thru 145°, 500 mm)
HL 145° (Angle drive, adjustable thru 145°, 500 mm)
HL 0° (Gear head 0° 500 mm)
HL 56 K (Gear head 0° 500 mm)
HL 94 / HL 94 K / HL 94 KC-E
(Angle drive, adjustable thru 145°, 500 mm)
HL-KM (Gear head 0° 500 mm)
HL-KM 0° (Gear head 0° 500 mm)
HL-KM 145° (Angle drive, adjustable thru 145°, 500 mm)
HLA 150.0 (Angle drive, adjustable thru 145°, 500 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 specification
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Test for smooth operation and secure sealing
⚠️ Gear head service should be performed by a qualified technician to ensure correct lubrication and alignment.
Maintenance Tips
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Inspect gear head housing regularly for damage or 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 assembly clean from debris buildup
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Always use genuine STIHL OEM gear head kits for correct fit and durability
