gear grease 0781 120 1109 – STIHL® HS Gear Grease (Genuine OEM)– Barry's Power Equipment

gear grease 0781 120 1109 – STIHL® HS Gear Grease (Genuine OEM)– Barry's Power Equipment0781 120 1109 STIHL HS Gear Grease (Genuine OEM) STIHL 0781 120 1109 is a genuine OEM grease specifically formulated for HS hedge trimmer gearboxes and blade drive gear heads. This high performance grease is designed to withstand high speed operation, heavy loads, and continuous heat, ensuring smooth gear engagement and long service life. It is the factory specified grease used by STIHL for HS HSA hedge trimmers, Kombi hedge trimmer attachments, and

0781 120 1109 – STIHL® HS Gear Grease (Genuine OEM)

STIHL® 0781 120 1109 is a genuine OEM grease specifically formulated for HS hedge trimmer gearboxes and blade drive gear heads. This high-performance grease is designed to withstand high-speed operation, heavy loads, and continuous heat, ensuring smooth gear engagement and long service life.

It is the factory-specified grease used by STIHL for HS / HSA hedge trimmers, Kombi hedge trimmer attachments, and related blade drive gear systems, and it is also listed as an approved auxiliary and operating material across a very wide range of STIHL equipment.

Product Details

• STIHL Part Number: 0781 120 1109

• Product Name: Grease for HS Gear

• Category: Auxiliary & Operating Materials

• OEM Status: Genuine STIHL

• Application: Gear heads, blade drive gears, hedge trimmer gearboxes

• Condition: New, factory-original STIHL product

Key Benefits

• Designed specifically for HS hedge trimmer gear heads

• Excellent adhesion to gears and bearings

• Reduces friction, heat, and wear under high load

• Extends gearbox and blade drive life

• Maintains smooth, quiet operation

• Required for proper STIHL service and maintenance

• Prevents premature gear failure caused by incorrect grease

Primary Applications

This grease is mandatory or approved for use in:

• STIHL HS & HSA Hedge Trimmers (gear head & cutter bar drive)

• Kombi hedge trimmer attachments (HL-KM, FH-KM series)

• Angle drive and blade drive gear assemblies

• Electric, battery, and gas-powered hedge trimmers

It also appears in parts diagrams as an Auxiliary and Operating Material for a wide range of STIHL equipment including:

• Chainsaws (MS / MSA series)

• Trimmers & Brushcutters (FS / FSA series)

• KombiMotors & Attachments (KM / KMA series)

• Pole pruners & hedge trimmers (HT / HL / HLA series)

• Blowers, sprayers, cut-off saws, and specialty equipment

⚠️ Important: While this grease appears across many models as a service material, it is specifically formulated for HS gear and blade drive applications. Always follow the STIHL service manual for correct usage location and quantity.

Why Use Genuine STIHL HS Gear Grease?

• Generic grease can separate, sling off, or overheat

• Incorrect lubrication leads to gear scoring and failure

• STIHL grease maintains proper viscosity at operating temperatures

• Protects expensive gearboxes and cutter bar assemblies

• Preserves STIHL factory performance and durability