STIHL Gear Housing for FS 55 & FS 55 C Trimmers - 4140 641 0300

The STIHL Gear Housing for FS 55 and FS 55 C trimmers is a genuine replacement component designed to house and protect the internal gear mechanism on compatible STIHL grass trimmers and brushcutters. Manufactured to STIHL original equipment standards, this gear housing helps support smooth drive transfer, correct cutting head alignment and dependable machine performance during regular garden and grounds maintenance work.

Built from durable materials for long service life, this genuine STIHL gear housing is ideal for professional landscapers, grounds maintenance teams and domestic users replacing a worn, cracked or damaged original housing. It provides reliable protection for key internal gear components, helping maintain the efficiency, handling and cutting performance of compatible STIHL FS 55 series machines.

Key Features

• Genuine STIHL replacement gear housing for assured compatibility and reliability
• Manufacturer Part Number: 4140 641 0300
• Designed for STIHL FS 55, FS 55 C, FS 55 R, FS 55 RC and FS 55 T models
• Houses and protects the internal gear mechanism
• Durable construction for long-lasting performance
• Helps maintain smooth drive transfer and cutting head alignment
• Protects internal components from debris, impact and wear
• Direct replacement for worn, damaged or cracked gear housings
• Straightforward installation during routine servicing or repair
• Suitable for professional and domestic trimmer maintenance

Typical Applications

This STIHL gear housing is used during maintenance or repair of compatible STIHL FS 55 series trimmers and brushcutters. It is suitable for replacing a damaged or worn housing to help protect the internal gears, restore reliable operation and maintain efficient cutting performance during lawn trimming, edging, light brushcutting and general garden maintenance.

Technical Specification

Fits Models

• STIHL FS55
• STIHL FS55C
• STIHL FS55R
• STIHL FS55RC
• STIHL FS55T
• STIHL FS 55
• STIHL FS 55 C
• STIHL FS 55 R
• STIHL FS 55 RC
• STIHL FS 55 T

Also Known As

• STIHL trimmer gear housing
• STIHL gear case
• STIHL brushcutter gear housing
• STIHL gear head housing
• STIHL gearbox housing
• STIHL FS 55 gear housing
• STIHL FS 55 C gear case
• STIHL replacement gear housing

Why Choose Genuine STIHL Parts?

Genuine STIHL parts are manufactured to match the original specification for fit, durability and performance. Choosing an original STIHL gear housing helps maintain correct gear protection, cutting head alignment and reliable drive transfer, reducing the risk of poor fitment, vibration, gear wear or premature component damage.

Explore More

• STIHL Spare Parts
• STIHL Parts Finder
• Brushcutter & Strimmer Accessories
• Strimmer Line
• Sharpening & Maintenance Tools

FAQs

Is this a genuine STIHL gear housing?

Yes, this is a genuine STIHL replacement gear housing manufactured to original equipment standards.

What is the part number for this STIHL gear housing?

The manufacturer part number is 4140 641 0300. It may also be listed as 41406410300.

Which STIHL machines does this gear housing fit?

This gear housing fits STIHL FS55, FS55C, FS55R, FS55RC and FS55T models.

What does the gear housing do?

The gear housing protects and supports the internal gear mechanism, helping maintain smooth drive transfer, correct cutting head alignment and reliable trimmer performance.

When should this gear housing be replaced?

Replace the gear housing if it is cracked, worn, damaged, distorted or no longer protects and supports the internal gear components correctly.

UK Delivery

Fast, reliable delivery from our UK warehouse.

• FREE UK Standard Delivery
  applies to eligible UK orders over £75 ex VAT.
  Estimated delivery: 2–4 working days
  

• UK Standard Delivery from £3.60 + VAT
  Estimated delivery: 2–4 working days

• Next Working Day Delivery – £6.00 + VAT
  
  Order before 3:00pm (Monday–Friday) for next working day delivery
  

All UK orders are dispatched Monday–Friday and sent via a tracked courier service.