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Caterpillar 307B 308B Sprocket 51-9336 23T

51-9336 Cat 307B 308B Sprocket
Rubbertrax
Caterpillar 307B 308B Sprocket 51-9336 23T
Buy aftermarket 51-9336 sprockets for your Cat 307B and 308B online at Rubbertrax and save versus going to your Cat dealer. Replacement Cat sprockets are guaranteed to fit the serial prefix listed below. Order online and get free shipping during checkout. This is the 23T option and we also stock the 21T option if your Cat 307 or 308 falls into the other serial breaks.
SKU: 51-9336
Weight: 49 lbs
Make: Cat
Shipping: Fast and Free!
Price: $318.00

Rubber tracks and wear parts are sold individually unless specified in the details. We offer free shipping across the USA when you order online and ship to a commercial address. *Some restrictions apply.

51-9336 Drive Sprocket Specification

This is the aftermarket sprocket for the Caterpillar 308B, 307B, and 307 mini excavator models in the specified serial range. This sprocket has twelve bolts and twenty-three drive teeth.


It is always important to change your undercarriage parts and rubber tracks at the same time to maximize the life span of the tracks and parts and get optimal wear.

Alternate Part Numbers

  • Caterpilalr Dealer Part Number: 51-9336

Caterpillar Serial Prefix Check

This sprocket is 23 drive teeth with 12 mounting bolt holes to install on your original drive motor. This sprocket is guaranteed to fit the following serial prefix list:
  • S/N 2FL, 2PM, 2WM, 9ZL, AFB, 3YS
If your sprocket is 21 teeth please check the Cat 307 series sprocket for the alternate serial breaks.

Alternate Models

This sprocket (51-9336) is known to fit:

  • Caterpillar 307
  • Caterpillar 307B
  • Caterpillar 308B

Quality Cat Sprockets

Smaller sprockets for compact mini excavators are hardened in a one-step procedure via electrical induction. This increases the depth of the hardness through the teeth while preventing breakage. Our aftermarket sprockets are hardened within millimeters of the original OEM sprocket which provides great value for our customers overall. We recommend installing by hand to your manufacturer's suggested torque specifics.