Description
Overview:
The Drive Pinion Fits Stihl HL-KM 0-145 Angle Drive is a genuine Stihl replacement gear designed for the angle gearbox used on Stihl long‐reach hedge trimmers and KombiSystem attachments. Made from precision‐machined, hardened steel, it transfers drive from the shaft to the mating gear, keeping the cutting head running smoothly under load. Replacing a worn or damaged pinion restores efficient power transmission and helps protect the rest of the gearbox. This OEM component is engineered for an exact fit within Stihl angle drive systems, including HL-KM 0-145 and HL 91 K. Genuine Stihl part (MPN 4243 640 2502) for reliable performance and consistent tolerances. Ideal for routine servicing to maintain accuracy, reduce noise, and extend the working life of professional and domestic machines.
Key Features:
- Genuine Stihl OEM part for assured compatibility and fit (MPN 4243 640 2502)
- Hardened steel construction for strength, wear resistance, and long service life
- Precision tooth profile for smooth meshing and efficient power transfer
- Restores performance of angle gearboxes affected by worn or chipped gears
- Helps reduce vibration, noise, and heat caused by gear wear
- Direct like‐for‐like replacement within Stihl angle drive assemblies
- Supports reliable operation when maintained and lubricated to schedule
- Suitable for professional use in demanding environments as well as home use
- Compatible across selected HL, HLA, and FH series tools (see model list)
Typical Applications:
Used during gearbox rebuilds or scheduled maintenance on Stihl angle drive units to replace a worn drive pinion. Common on long‐reach hedge trimming, landscaping, and grounds maintenance tasks where continuous load and angles put stress on the gears. Helps ensure smooth drive to the cutter head for clean cuts and consistent results.
Also known as:
Drive gear, pinion gear, gearbox pinion, angle drive pinion, drive cog, gear cog, transmission gear for Stihl angle gearbox assemblies.
Fits Models:
FH 145, FH-KM 145, FH-KM 145 deg, FH-KM145, FH-KM145deg, FH145, FHKM145, HL 145, HL 91 K, HL 91 KC, HL 92 C, HL 92 KC, HL 94, HL 94 C, HL 94 K, HL 94 KC, HL-KM 0-145, HL-KM0-145, HL145, HL91K, HL91KC, HL92C, HL92KC, HL94, HL94C, HL94K, HL94KC, HLA 135, HLA 135 K, HLA135, HLA135K
Alternate Part Numbers:
4243-640-2502, 42436402502
Product Specifications
| L&S Part No. | 4243 640 2502 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42436402502 |
| Unit of Sale | 1 |
| Applications | FH 145, FH-KM 145, FH-KM 145 deg, FH-KM145, FH-KM145deg, FH145, FHKM145, HL 145, HL 91 K, HL 91 KC, HL 92 C, HL 92 KC, HL 94, HL 94 C, HL 94 K, HL 94 KC, HL-KM 0-145, HL-KM0-145, HL145, HL91K, HL91KC, HL92C, HL92KC, HL94, HL94C, HL94K, HL94KC, HLA 135, HLA 135 K, HLA135, HLA135K |
| Machine Type | Long Reach Hedgetrimmers |
| Fits Brands | Stihl |
| Fits Models | FH-KM 145 deg | HL-KM 0-145 | HL91K, HL91KC | HL92C, HL92KC | HL94, HL94C, HL94K, HL94KC | HLA 135, HLA 135 K | FH 145° | HL 145° |
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