A genuine drive sprocket, a key component of the tracked undercarriage. Its function is to transfer power from the final drive motor to the track links, setting the machine in motion. Made of high-hardness cast steel and precision-machined, it ensures perfect engagement and minimizes track wear.
Genuine JCB product – a guarantee of the highest quality, perfect fit, and 100% compatibility with your machine.
| Brand (Machine Type) | Model |
|---|---|
| JCB (Mini Excavators) | 802, 802.4, 802.7, 803, 804, 8025ZTS, 8027ZTS, 8030ZTS, 8032ZTS, 8035ZTS, 8040ZTS, 8045ZTS |
The list above is for reference. We recommend verifying the part number on your machine before purchasing.
Sprockets wear together with the tracks. To ensure a perfect mesh and avoid accelerated wear, always replace the sprockets in pairs when fitting new tracks. Also, check the condition of the track rollers and idler wheels to comprehensively service the undercarriage.
The drive sprocket is the "engine" of the track. Its wear leads to improper engagement with the track bushings, resulting in "jumping", loss of traction, accelerated track wear, and in extreme cases, even track breakage.
Replace the drive sprocket if you notice:
✓ Uncompromising Quality: Choose a Genuine JCB Part
By choosing a genuine JCB drive sprocket, you are investing in 100% certainty and peace of mind. You receive a part made from the highest quality steel, with ideal dimensions and hardness, which guarantees maximum service life and perfect cooperation with the track. Don't risk it with replacements – choose the quality that protects your undercarriage.
Is your undercarriage "clicking" and jumping? Don't risk breaking a track!
Operating on worn sprockets destroys new tracks. Order genuine JCB sprockets today and give your machine a smooth and powerful ride!
Yes, this is very likely. Installing new tracks on old, worn sprockets is the most common cause of "jumping". The new track bushings do not fit the worn teeth, which causes loud clunking and damages both components. Sprockets should always be replaced with new tracks.
2. How can I tell if my sprocket is worn out?Visually assess the shape of the teeth. New teeth have a wide, rounded tip. As they wear, they become thinner and sharper, resembling "shark teeth". If the teeth feel sharp to the touch, the sprocket needs to be replaced.
3. What wears out faster: drive sprockets or idler wheels?Drive sprockets definitely wear out faster. They transfer the full torque of the final drive motor and are subjected to much greater abrasive forces than the free-wheeling idler wheels. Typically, two sprocket replacements correspond to one replacement of idlers and rollers.
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Genuine JCB Quality
Guarantees maximum durability and reliability.
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Track Protection
Perfect meshing prevents link wear.
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Smooth and Powerful Drive
Eliminates jumping and loss of traction.
Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.
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Original sprocket wheel suitable for JCB mini excavators: 802, 803, 804.

















