The STIHL Pole Pruner Chain Sprocket – 0000 640 2001 is a genuine OEM drive sprocket designed specifically for STIHL pole pruner attachments and other compatible long-reach cutting tools. This precision-engineered sprocket meshes with a low-profile 1/4″ (6.35 mm) chain and drives the cutting assembly smoothly and efficiently — ensuring consistent chain movement, reduced vibration and dependable power transfer from the engine through to the cutting chain. Its steel construction and accurate tooth profile help extend both sprocket and chain life compared with many generic alternatives.

---

Key Features

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

• 1/4″ Picco Pitch with 8 Teeth – Matches low-profile 1/4″ pole pruner chains for reliable engagement and smooth rotation.

• Durable Steel Construction – Withstands pruning loads and resists wear.

• Precise Tooth Geometry – Ensures efficient power transfer and helps minimise premature wear on chain and bar.

• Part Reference: 0000 640 2001 – Confirms correct OEM sprocket identification and compatibility.

---

Suitable Machines / Compatible Equipment

This OEM sprocket is used on a wide range of STIHL pole pruner tools and KombiSystem attachments where a 1/4″ pitch chain and sprocket are fitted. Typical compatible models include:

• STIHL HT56 C Pole Pruner

• STIHL HT70 / HT70 K / HT75 Pole Pruners

• STIHL HT73 Pole Pruner

• STIHL HT100 / HT101 / HT102 / HT103 Pole Pruners

• STIHL HT130 / HT131 / HT132 / HT133 / HT135 Pole Pruners

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

(Exact fitment depends on machine configuration, gearbox type and chain/bar set-up — always consult the official STIHL parts diagram for your specific model.)

---

Typical Compatible Applications

This chain sprocket is commonly installed in pole saw and pruner cutting gearheads to:

• Drive the cutting chain on pole pruner attachments

• Maintain correct chain velocity and engagement

• Support efficient pruning of branches at height

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

---

Parts This Sprocket Replaces / Supersedes

The 0000 640 2001 sprocket is the direct OEM replacement for the original pole pruner drive sprocket. Alternate or related references seen in parts listings include:

• 0000-640-2001 (hyphenated notation)

• 00006402001 (continuous reference format)

(Always check your official parts diagram to ensure correct part number before ordering.)

---

Fitment Tip

Sprockets must match the chain pitch, tooth count and gearbox output shaft on your STIHL pole pruner or KombiSystem head. Before purchasing, identify your exact model and serial number, then consult the official STIHL service parts list to verify that 0000 640 2001 is the correct sprocket for your equipment. Proper match ensures smooth chain engagement, reduced wear and long-lasting performance.

---

Product Details

• Product Type: Chain Drive Sprocket (Pole Pruner)

• Part Reference: 0000 640 2001

• Pitch: 1/4″ (6.35 mm) Picco

• Teeth: 8

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

---

Why Choose This Chain Sprocket

The STIHL 0000 640 2001 chain sprocket is the OEM recommended choice for maintaining proper chain drive performance on STIHL pole pruners. Its genuine design ensures accurate tooth profile, reliable power transmission, reduced vibration and longer component life compared with many aftermarket alternatives — helping you keep pruning efficiently and safely with minimal interruption.