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Description
4243 710 6003 STIHL Blade 500 mm / 20" – Genuine OEM Cutter Blade Part
The STIHL Blade 500 mm / 20" (4243 710 6003) is a genuine OEM cutter blade designed to deliver clean, precise trimming performance for select STIHL long-reach hedge trimmers and KombiSystem hedge trimmer attachments. This 500 mm (20-inch) blade provides excellent reach and control for professional hedge shaping and detailed landscaping work.
Over time, hedge trimmer blades can become dull, chipped, bent, or worn due to heavy use, debris impact, or insufficient lubrication. A damaged blade may cause uneven cuts, increased vibration, or reduced trimming efficiency. Replacing it with the correct OEM blade restores factory cutting performance without replacing the entire cutter bar assembly.
Manufactured to STIHL factory specifications, this genuine cutter blade ensures exact fitment, smooth reciprocating operation, and long-term durability under demanding professional conditions.
Product Details
OEM Part Number: 4243 710 6003
Brand: STIHL (Genuine OEM)
Part Type: Cutter Blade
Length: 500 mm / 20"
Application: Hedge trimmer cutter bar blade system
Condition: New Genuine OEM Part
Function
This STIHL cutter blade is designed to:
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Deliver clean and accurate hedge trimming cuts
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Maintain smooth reciprocating blade movement
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Replace worn, dull, or damaged blades
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Restore trimming efficiency and professional performance
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Support long-reach hedge trimming applications
⚠️ A worn blade can cause uneven cutting, vibration, and accelerated cutter bar wear.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4243 710 6003
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Blade length requirement (500 mm / 20")
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Your unit model matches those listed below
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Application matches your STIHL illustrated parts diagram
⚠️ Cutter blades are model-specific — always verify by OEM part number and cutter bar configuration.
Compatibility
This OEM cutter blade fits select STIHL long-reach hedge trimmers and Kombi hedge trimmer attachments equipped with 500 mm cutter bar 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)
(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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Remove cutter bar assembly as required
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Carefully disassemble blade stack on a clean surface
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Install new blade in correct orientation
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Inspect sleeves, friction plates, and guides during service
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Reassemble cutter bar and torque fasteners to STIHL specifications
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Lubricate cutter bar before operation and test blade movement
⚠️ Blade installation should be performed carefully to maintain proper alignment and safe operation.
Maintenance Tips
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Lubricate cutter bar regularly during operation
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Inspect blades for dullness, bending, or impact damage
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Avoid cutting thick branches beyond hedge trimmer capacity
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Clean cutter bar assembly after each use
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Always use genuine STIHL OEM cutter blades for proper fit and durability




