Description
Overview:
This Set of Pinions is a Genuine Stihl replacement for the adjustable angle gearbox used on long‐reach hedge trimmer heads, including the HL-KM 135 and HL 100. Made from durable steel, the matched pinions restore the gear train inside the angle head, maintaining positive drive from the shaft to the cutter blades. They are designed to fit and function exactly like the originals, helping keep the head running smoothly under regular professional or domestic use. The OEM number 4230 640 7305 and MPN 42306407305 confirm correct compatibility with the specified Stihl heads. Ideal for preventative maintenance or for replacing worn or chipped gears, this set supports consistent cutting performance and extends the service life of your adjustable 0-135° angle drive assembly.
Key Features:
- Genuine Stihl part for assured fit and compatibility (OEM 4230 640 7305, MPN 42306407305)
- Steel construction for high wear resistance in demanding hedge trimming work
- Precision-matched pinions help maintain smooth, reliable angle head operation
- Direct replacement for the original gears in 0-135° adjustable angle heads
- Helps restore cutting efficiency by preventing slip and poor gear engagement
- Supports longer service intervals when used with correct lubrication and care
- Suitable for professional and domestic users seeking dependable OEM performance
- Simple to install during routine gearbox inspection to minimise downtime
Typical Applications:
Used to replace worn or damaged gears inside the adjustable angle head on Stihl long‐reach hedge trimmers and KombiSystem attachments. Common during scheduled services, after heavy seasonal trimming, or when symptoms such as rough operation, visible tooth wear, or drive loss are found. Helps maintain efficient cutting, smooth angle adjustment, and reliable power transmission.
Also known as:
Bevel pinion set, angle gearbox kit, head transmission set, cutter head drive set, bevel gear kit, angle drive gear pair, trimmer angle head gear set, long‐reach head drive gears.
Fits Models:
FH 135, FH 75, FH-KM 135, FH-KM 135 deg, FH-KM135, FH135, FH75, FHKM135, HL 100, HL 100 K, HL 135, HL 75, HL 75 K, HL 90, HL 90 K, HL 95, HL 95 K, HL-KM 0-135 deg, HL-KM 135, HL-KM135, HL100, HL100K, HL135, HL75, HL75K, HL90, HL90K, HL95, HL95K, HLKM135
Alternate Part Numbers:
4230-640-7305, 42306407305
Product Specifications
| L&S Part No. | 4230 640 7305 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42306407305 |
| Unit of Sale | 1 |
| Machine Type | Hedgetrimmers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part, OEM 4230 640 7305 - Steel construction for high wear resistance - Fits Stihl HL-KM 135 and HL 100 models - Restores gear train for smooth operation - Direct replacement for 0-135° angle heads |
| Fits Models | FH-KM 135 deg | HL-KM 0-135 deg | HL75, HL75K | HL90K, HL90, HL95K | HL100, HL100K | HL135 | HL 95, HL 95 K | FH 135° | HL 135° |

