Stihl HL94 Cylinder & Piston Kit 4149 020 1204

STIHL Cylinder & Piston Kit Ø 35mm – OEM 4149 020 1204

Genuine STIHL Top End Rebuild Kit for HL91, HL94, FS94 & KM94 Engines

Restore engine power, compression, and reliability with this genuine STIHL cylinder and piston kit (OEM part number 4149 020 1204). Designed for STIHL 2-stroke hedge trimmers, brushcutters, and Kombi engines, this top end rebuild kit is the ideal solution for repairing worn, scored, or seized engines.

🔧 Product Overview

The STIHL 4149 020 1204 cylinder and piston assembly features a precision-engineered Ø 35mm (1.38″) bore, delivering the correct tolerances for optimal combustion and performance. This OEM kit is manufactured to STIHL’s exact standards, ensuring smooth operation, consistent power output, and long service life.

Perfect for HL91, HL94, FS94, and KM94 models, this top end kit restores your machine’s ability to start easily, run efficiently, and deliver full cutting performance. Supplied with self-tapping mounting bolts, it installs easily as a direct OEM replacement with no modifications required.

✅ Key Features

• Genuine STIHL OEM Part – Guaranteed fit, performance, and durability
• Part Number: 4149 020 1204 (also listed as 41490201204 / 4149-020-1204)
• Ø 35mm Cylinder Bore (1.38″) – Precision fit for correct engine tolerances
• Complete Top End Kit – Includes matched piston and cylinder assembly
• Restores Compression & Power – Fixes low compression and poor performance
• Improves Starting & Efficiency – Enhances fuel combustion and reliability
• Heavy-Duty Construction – Built to withstand heat, vibration, and wear
• Includes Self-Tapping Bolts – Secure and straightforward installation
• Direct OEM Replacement – No machining or modifications required

⚙️ Compatibility

This STIHL cylinder & piston kit fits the following models:

Brushcutters & Trimmers:

• STIHL FS 94 / FS 94 C / FS 94 R / FS 94 RC

Kombi Engines:

• STIHL KM 94 R / KM 94 RC

Long-Reach Hedge Trimmers:

• STIHL HL 91 K / HL 91 KC
• STIHL HL 94 / HL 94 C / HL 94 K / HL 94 KC

(Always confirm part number and compatibility before purchase.)

🛠️ Typical Applications

• Repairing engines with low compression or poor starting
• Replacing scored, worn, or seized cylinders and pistons
• Restoring engine performance after overheating or lubrication failure
• Routine top end rebuilds and preventative maintenance
• Professional servicing of STIHL hedge trimmers and Kombi systems

🔄 Also Known As

• STIHL cylinder kit
• Piston and barrel kit
• Top end rebuild kit
• Engine cylinder assembly
• 35mm cylinder piston kit STIHL

🌲 Why Choose Genuine STIHL Parts?

Using a genuine STIHL cylinder and piston kit 4149 020 1204 ensures:

• Perfect OEM fit and engine compatibility
• Maximum durability under heavy workloads
• Reliable performance and extended engine life
• Superior quality compared to aftermarket kits

📦 Product Specifications

• Manufacturer: STIHL
• Part Number: 4149 020 1204
• Alternate Formats: 41490201204 / 4149-020-1204 / 4149 020 1200
• Part Type: Cylinder & Piston Kit / Top End Assembly
• Bore Size: Ø 35mm (1.38″)
• Unit of Sale: 1 Kit
• Machine Type: Hedge Trimmers, Brushcutters, Kombi Engines
• Fits Brand: STIHL

🚚 Built for Professional & Commercial Use

This STIHL HL94 / FS94 cylinder kit is ideal for professional landscapers, arborists, maintenance crews, and repair workshops looking to restore equipment quickly and reliably.

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