CATUndercarriage

51-9336 12 Hole 23 Teeth Sprocket — Cat Mini Excavator 307B 308B

This 12-hole, 23-tooth sprocket is a key component of the undercarriage drive system, transmitting power from the final drive to propel the machine. It is manufactured to meet rigorous OEM quality standards, providing superior tooth hardness and wear resistance compared to a worn or damaged sprocket. Operators may notice increased vibration, grinding noises, or a loss of traction when this part begins to fail.

12 Hole 23 Teeth Sprocket – Part No 51-9336 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

Related CAT Parts

From the same category — may also be needed

1901546
Idler Gp-Track
2208161
Undercarriage Component
1941242
Spring Gp-Recoil
6T9538
Undercarriage Component
1156368
Spring
1792997
Spring Gp-Recoil

Browse all CAT Undercarriage →

Installation & Application Notes

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeDrive Sprocket
MaterialHardened forged steel
ApplicationUndercarriage drive system
Service LifeReplace as needed based on wear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing sprocket include a noticeable increase in noise and vibration during operation, particularly when turning or under load. If ignored, this can lead to accelerated wear on the track links and premature failure of the final drive components. The primary risk is loss of drive power and potential damage to the entire powertrain.

Installation Tip

Ensure the final drive output shaft splines are clean and lubricated before mounting the new sprocket. Avoid hammering the sprocket onto the shaft, as this can damage the splines or the sprocket itself.

Service Note

When replacing the drive sprocket, inspect the final drive seals, bearings, and the track links for wear and damage.