4137 640 0100 Gear Box For Stihl FR450 FR460 FR480 FR85 FR85 T FS100

Product Overview

This gear box is a direct replacement gear assembly designed for select Stihl brushcutters and trimmers. It transfers engine power to the cutting head, enabling efficient vegetation management for landscaping and agricultural use. The gear box is built to restore original performance in compatible Stihl models.

Key Features & Performance

• Precision-engineered gears for smooth power transfer and reduced vibration
• Factory-matched OEM specifications for direct bolt-on installation
• Durable metal housing resists impact and wear in heavy-duty use
• Integrated grease fittings allow easy lubrication maintenance
• Lightweight design minimizes operator fatigue during extended operation

Fitment & Compatibility

• Stihl FR450
• Stihl FR460
• Stihl FR480
• Stihl FR85
• Stihl FR85 T
• Stihl FS100

Common Uses

• Replacing worn or damaged gear boxes on Stihl brushcutters
• Restoring cutting performance in commercial landscaping operations
• Maintaining trail clearing and roadside vegetation equipment
• Repairing farm and ranch trimming machinery

Technical Specifications

• Part Number(s): 4137 640 0100
• Product Type: Gear Box Assembly
• Compatible Brand: Stihl
• Material: Metal Housing with Steel Gears

Frequently Asked Questions

Q: Will this gear box fit my Stihl FR460? A: Yes, this gear box is compatible with the Stihl FR460 as listed in the fitment section. Always verify your model and serial number before installation.

Q: Does this gear box come pre-filled with grease? A: The gear box is typically dry and requires lubrication before use. Apply a lithium-based grease to the gears through the fill plug for proper operation.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.