×
Description
4230 642 4800 STIHL Thrust Plate – Genuine OEM Blade Drive Gear Part
The STIHL Thrust Plate (4230 642 4800) is a genuine OEM internal gearbox component designed to support proper gear alignment and load distribution within the blade drive gear assemblies of select STIHL hedge trimmers and KombiSystem attachments. This thrust plate plays an important role inside the gear housing by helping manage axial forces and ensuring smooth, reliable blade movement during operation.
Over time, thrust plates may wear due to continuous gear load, vibration, insufficient lubrication, or extended professional use. A worn thrust plate can lead to excessive play, improper gear engagement, noise, or reduced cutting performance. Replacing it with the correct OEM part helps restore proper gearbox function without replacing the entire drive assembly.
Manufactured to STIHL factory specifications, this genuine thrust plate ensures correct fitment, durability, and long-term reliability under demanding cutting conditions.
Product Details
OEM Part Number: 4230 642 4800
Brand: STIHL (Genuine OEM)
Part Type: Thrust Plate
Application: Blade drive gear / gearbox housing assembly
Condition: New Genuine OEM Part
Function
This STIHL thrust plate is designed to:
-
Support proper gear positioning inside the blade drive gearbox
-
Manage axial load and reduce internal wear
-
Maintain smooth blade drive operation
-
Replace worn or damaged internal thrust components
-
Help preserve long-term gearbox performance
⚠️ A worn thrust plate can cause gear misalignment, excessive play, or premature gearbox wear.
Verify Fitment (Recommended)
Before ordering, confirm:
-
OEM part number 4230 642 4800
-
Your unit model matches those listed below
-
Application matches your STIHL illustrated parts diagram
⚠️ Gearbox thrust components are model-specific — always verify by OEM part number and drive assembly type.
Compatibility
This OEM thrust plate fits many STIHL hedge trimmers and KombiSystem units equipped with specific blade drive gear and gearbox housing configurations, including:
Hedge Trimmers / Kombi Attachments
HL 45 / HL 45-D (Blade drive gear – 24.2005)
HL 73 / HL 73 K (Blade drive gear)
HL 75 / HL 75 K (Blade drive gear 0°, 30°, 0°–90° – 24.2005)
HL 100 / HL 100 K (Blade drive gear 0°, 30°, 0°–90° – 24.2005)
HL 0° / HL 0° 90° (Blade drive gear 0°, 30°, 0°–90°)
HL-KM (Blade drive gear 0°, 30°, 0°–90° – 24.2005)
HL-KM 0° / HL-KM 30° / HL-KM 0° 90°
FH 0° 90° (Blade drive gear 0°–90°)
FH-KM 0° 90° (Blade drive gear 0°–90°)
Hedge Trimmer Gear Housing Models
HS 74 (Gear housing, Cutter bar 420mm / 17")
HS 75 (Gear housing)
HS 80 (Gear housing)
HS 85 (Gear housing)
HS 151 (Gear housing, Extras)
HS 202 (Gear housing, Blade)
HS 242 (Gearbox housing, Blade)
(Exact fitment depends on production version — always verify using OEM parts diagram.)
Installation Notes
-
Remove blade assembly and access gearbox housing
-
Disassemble gear housing carefully on a clean surface
-
Replace thrust plate in correct orientation
-
Inspect gears, bearings, and lubrication condition
-
Reassemble gearbox and torque fasteners to specification
-
Verify smooth blade movement after installation
⚠️ Gearbox service should be performed by a qualified technician to ensure correct alignment and lubrication.
Maintenance Tips
-
Maintain proper gearbox lubrication at recommended intervals
-
Inspect gear housing for noise, play, or wear
-
Replace worn thrust components during gearbox rebuilds
-
Avoid forcing blade movement if binding occurs
-
Always use genuine STIHL OEM gearbox parts for correct fit and durability
