The STIHL Pole Pruner Chain Sprocket – 0000 640 2002 is a genuine OEM drive sprocket engineered for STIHL pole pruner cutting heads and long-reach pruning tools. This precision sprocket transfers rotational power from the drive tube gearbox to the cutting chain, ensuring smooth, reliable chain movement and accurate engagement with the bar and chain system. Its hardened steel construction and precise tooth profile resist wear and help extend the life of both the sprocket and the chain when maintained correctly.

Manufactured to STIHL’s original equipment specifications, the 0000 640 2002 sprocket is designed specifically for low-profile 3/8″ Picco chains with a 6-tooth configuration, delivering dependable power transfer and reduced vibration under typical pruning loads. Its exact fit and finish ensure consistent performance compared with generic aftermarket alternatives.

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Key Features

• Genuine STIHL OEM Component – Built to original STIHL quality and design standards for accurate fitment and dependable performance.

• 3/8″ Picco Pitch – Designed for 3/8″ low-profile pole pruner chains.

• 6-Tooth Drive – Precisely machined tooth count matches STIHL chain and bar requirements for smooth engagement.

• Hardened Steel Construction – Resists wear, deformation and premature failure under load.

• Part Reference: 0000 640 2002 – Confirms correct OEM STIHL sprocket identification and compatibility.

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Suitable Machines / Compatible Equipment

This genuine STIHL 0000 640 2002 chain sprocket is fitted to a wide range of STIHL pole pruners, KombiSystem attachments and long-reach gearheads where a 3/8″ low-profile chain drive is specified. Typical compatible models include:

• STIHL HT56 C-E Pole Pruner

• STIHL HT70 / HT70 K Pole Pruner

• STIHL HT73 Pole Pruner

• STIHL HT75 Pole Pruner

• STIHL HT100 / HT101 Pole Pruner

• STIHL HT102 / HT103 Pole Pruner

• STIHL HT130 / HT131 / HT132 / HT133 Pole Pruner

• STIHL HT-KM KombiSystem Gearhead (pole pruner configuration)

(Exact model fitment depends on machine configuration, production year and chain/bar combination — always verify with the official STIHL parts diagram before ordering.)

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Typical Compatible Applications

This chain sprocket is commonly used to:

• Drive the cutting chain in pole pruner gearheads

• Maintain correct chain speed and engagement

• Support pruning of branches at height

• Replace worn or damaged sprocket teeth to restore smooth chain performance

• Provide reliable power transfer for pruning professionals and serious gardeners

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Parts This Sprocket Replaces / Supersedes

The 0000 640 2002 sprocket is the direct OEM replacement for the original drive sprocket fitted to compatible STIHL pole pruner gearheads. Alternate or related references you may encounter include:

• 0000-640-2002 (hyphenated OEM format)

• 00006402002 (continuous reference format)

• STIHL cross-reference 4138 642 1250 in some parts listings

(Always verify part numbers with your official parts diagram to ensure correct selection.)

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Fitment Tip

Sprockets must match the chain pitch, tooth count, gearbox output shaft and bar configuration on your STIHL pole pruner or KombiSystem cutting head. Before ordering, identify your model and serial number, then consult the official STIHL part list to ensure that 0000 640 2002 is the correct sprocket for your equipment. Proper match ensures smooth chain engagement, reduced wear and long-lasting performance.

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Product Details

• Product Type: Chain Drive Sprocket (Pole Pruner)

• Part Reference: 0000 640 2002

• Pitch: 3/8″ (9.53 mm) Picco

• Teeth: 6

• Function: Transfers rotational power to the cutting chain on compatible pole pruner gearheads

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Why Choose This Chain Sprocket

The STIHL 0000 640 2002 Chain Sprocket is the dependable OEM choice when replacing a worn, chipped or damaged sprocket on compatible STIHL pole pruners and KombiSystem attachments. Its genuine construction ensures accurate tooth geometry, reliable power transmission and longer service life compared with many aftermarket alternatives — helping you maintain smooth, efficient pruning performance and reduce downtime due to worn components.