Sprockets for Compact Track Loader
Bobcat T140 Sprockets
Replacement sprockets for Bobcat T140 compact track loaders. Drive the track and transfer power from the final drive. Wholesale pricing with fast shipping from our Houston warehouse.
Researched Part Numbers for Bobcat T140
Research-Based Fitment Data: The following part numbers have been researched for compatibility with Bobcat T140 compact track loaders. Part numbers and fitment vary by serial number range.Please call 346-438-6252 with your machine serial number to confirm exact fitment before ordering.
Research-Based Fitment — Call to Confirm
7165111
drive sprocket
Bobcat T140 / T180 / T190 Drive Sprocket 7165111 (6-Bolt)
Primary Part Number
7165111
Alternate / Interchange Numbers
Supersession / Interchange Notes
Bobcat 7165111 supersedes previous part numbers 6736306 and 6855724 (old). Cast with material number 7165110.
Compatible Machines
Bobcat T140, T180, T190 compact track loaders - the 6-bolt-hole sprocket version. 15 teeth, 6 large bolt holes + 3 small holes, approx 16.77 in (425 mm) diameter.
Mount Type / Chassis Notes
Drive sprocket, 15 teeth, 6 large bolt holes plus 3 smaller holes, approx 16.77 in diameter. This is the 6-BOLT version - some serials (e.g. T190 A3LL36500 & above) use the 12-bolt sprocket 7166679 instead, so the customer must confirm bolt-hole count before ordering. T140/T180/T190 share rollers and idlers but differ in sprocket from the T250/T300 series.
Serial Number Specific
Confirm 6-bolt vs 12-bolt pattern and serial. T180 from s/n 231611001-later; T190 from s/n 527713882-later / 572813044-later.
Research-based fitment data. Please call with your machine serial number to confirm compatibility before ordering. Part numbers and fitment may vary by serial range.
346-438-6252 • Houston, TX
About Drive Sprockets for Bobcat T140
The drive sprocket is mounted directly to the final drive output and meshes with the track drive lugs. As the sprocket rotates, its teeth engage and push against the track lugs, propelling the machine forward or backward.
Sprocket teeth are precision-machined to match the track lug pitch and profile. Over time, teeth wear and can become hooked, sharp, or misshapen, causing inefficient power transfer and accelerated track lug wear.
Aftermarket sprockets are manufactured to OEM specifications using hardened steel alloys. Proper heat treatment ensures the tooth surface resists wear while the core remains tough enough to handle impact loads.
How Drive Sprockets Work
The sprocket receives rotational power from the final drive motor. As it turns, each tooth engages with a track drive lug, pushing the track around the undercarriage. The sprocket effectively acts as a gear, transferring all drive force to the track. Proper tooth-to-lug engagement is critical for efficient power transfer and track longevity.
Signs You May Need a Replacement Sprocket
Worn sprockets directly impact track life and machine performance. Early detection prevents costly track damage:
•Hooked or Sharp Sprocket Teeth
Normal wear causes teeth to develop a hook shape on the drive side. Severely hooked teeth grab and release the track lugs abruptly, causing skipping and premature lug wear.
•Track Slipping or Skipping Under Load
When sprocket teeth can no longer properly engage track lugs, the track may slip or skip, especially when pushing, climbing grades, or carrying heavy loads.
•Accelerated Track Lug Wear
Worn sprockets cause uneven contact with track lugs, concentrating wear on specific points. If track lugs are wearing faster than expected, inspect the sprocket.
•Visible Tooth Damage or Cracks
Chipped, cracked, or broken teeth cause track damage and uneven wear. Even one damaged tooth affects the entire track engagement pattern.
•Excessive Vibration During Travel
Worn sprockets create an irregular engagement pattern that causes vibration, noise, and jerky movement, especially at higher travel speeds.
•Track Derailment Issues
Severely worn sprockets may fail to maintain proper track engagement, contributing to track derailment during operation.
Fitment Verification
Sprocket specifications vary by machine model, serial number, and in some cases by track type. Tooth count, bolt pattern, and hub dimensions must match your machine exactly.
Some machines have serial number breaks where sprocket design changed during production. Providing your serial number ensures we match the correct part.
Our team can verify sprocket specifications including tooth count, bolt circle, and mounting dimensions before shipment.
Free Fitment Verification
Not sure which sprocket fits your Bobcat T140? Contact us with your serial number and we will verify the correct part at no charge.
Related Bobcat T140 Parts
Complete your undercarriage maintenance with these related components for your Bobcat T140.
Compatible Rubber Track Sizes for Bobcat T140
Find the correct rubber track size for your Bobcat T140. Always verify with your serial number for accurate fitment.
Get a Quote for Bobcat T140 Sprockets
Contact us with your machine details for competitive wholesale pricing. Include your serial number for accurate fitment verification.
Get wholesale pricing on rubber tracks and undercarriage parts. We respond within 2 business hours.
Frequently Asked Questions About Bobcat T140 Sprockets
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- Wholesale Pricing
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Same-day shipping on in-stock items
- Expert Support
Knowledgeable staff to help with fitment and selection
- Quality Assurance
Premium components meeting OEM specifications