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Description
4182 640 0138 – STIHL Gear Head for HT 101, HT 131 & HT-KM (Genuine OEM Part)
The STIHL 4182 640 0138 Gear Head is a genuine OEM replacement assembly engineered to transfer engine power from the drive shaft to the cutting attachment on compatible STIHL pole pruners and KombiSystem attachments. Designed for professional performance, this gear head provides smooth power transmission, precise chain operation, and long-lasting durability in demanding tree maintenance and pruning applications.
Manufactured to STIHL's exact factory specifications, the 4182 640 0138 Gear Head features hardened internal gears and a heavy-duty aluminum housing for exceptional strength, efficient power transfer, and reliable operation. Whether replacing a worn or damaged gear head, this genuine STIHL component restores the original cutting performance and reliability of your equipment.
Key Features
- Manufacturer: STIHL
- Part Number: 4182 640 0138
- Part Type: Gear Head Assembly
- Function: Transfers power from the drive shaft to the saw chain
- Construction: Heavy-duty aluminum housing with hardened steel internal gears
- Installation: Direct genuine OEM replacement
- OEM Quality: Genuine STIHL replacement part
Compatibility
The STIHL 4182 640 0138 Gear Head is compatible with the following STIHL equipment:
- STIHL HT 101 Pole Pruner
- STIHL HT 131 Pole Pruner
- STIHL HT-KM Pole Pruner KombiTool
Always verify your model and illustrated parts diagram before ordering to ensure proper fitment.
Who Is This For?
Ideal for:
- Professional arborists
- Tree service contractors
- Landscaping professionals
- Municipal maintenance crews
- Homeowners maintaining large properties
Recommended Property Size
Suitable for:
- Residential properties with mature trees
- Large estates
- Commercial landscapes
- Parks and recreation areas
- Orchards
- Municipal tree maintenance
Pros
- Genuine STIHL OEM quality
- Restores smooth and efficient power transfer
- Heavy-duty gear construction for extended service life
- Precision fit for compatible STIHL equipment
- Built to withstand demanding professional use
- Direct replacement for easy installation
Cons
- Compatible only with designated STIHL models
- Saw chain, guide bar, and mounting hardware are sold separately unless otherwise specified
Comparison – Genuine STIHL Gear Head vs Aftermarket Replacement
Genuine STIHL 4182 640 0138
- Factory-engineered for precise fit and performance
- Hardened gears for maximum durability
- Reliable power transmission
- Long service life under professional use
- Maintains original equipment performance
Aftermarket Gear Head
- Fit and gear tolerances may vary
- Variable material quality
- Reduced durability under heavy workloads
- May produce increased wear or vibration
Why Buy from Barry's?
- Genuine STIHL OEM replacement parts
- Fast shipping from the USA
- Competitive pricing
- Trusted by professional landscapers, arborists, and equipment repair shops
- Expert customer support for STIHL parts identification and compatibility
Restore the cutting performance of your pole pruner with the STIHL 4182 640 0138 Gear Head, a genuine OEM replacement designed to deliver smooth power transmission, reliable chain operation, and long-lasting durability for compatible STIHL HT 101, HT 131, and HT-KM equipment.




