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Caterpillar (CAT) 303.5 Drive Sprockets (Fit Caterpillar (CAT) 303.5 Mini Excavator)

Basic Info.

  • Item Fit: Caterpillar (CAT) 303.5
  • Item Condition: New
  • Item Weight: 20 lbs
  • Item Maker: FLundercarriage
  • Place of Origin: Quanzhou

Delivery Info.

  • Inventory Class: Standing
  • Packaging: Carton/Pallet
  • ETD: 24-72 Hours
  • ETA: 5-30 Days
Replacement Drive Sprocket for Caterpillar® 303.5 Mini Excavator - Part Number 172-1965
Elevate the operation of your Caterpillar 303.5 mini excavator with our top-notch aftermarket drive sprocket. Ensuring smooth motion and reliable durability, this sprocket is an essential element of your excavator's undercarriage.
Key Specifications:
  • Teeth: It is designed with 21 teeth to maintain optimal engagement with the tracks.
  • Bolt Holes: There are 9 bolt holes that ensure a firm fit onto your excavator.
  • Dimensions: The sprocket has an inside diameter of 8 inches and an outside diameter of 13 3/4 inches, guaranteeing a compatible fit with your machine.
Variations & Part Numbers:
  • An alternate version with 19 teeth is also available under the part number 158-4795. Be sure to confirm your sprocket's teeth count and diameter prior to ordering to ensure a perfect match.
OEM Part Information:
  • The CAT® dealer part number corresponding to this sprocket is 172-1965.
Compatibility:
  • This specific drive sprocket is suitable for CAT® 303.5 mini excavators with serial numbers AFW1 and upwards.
Quality Assurance:
  • CAT® sprockets for compact mini excavators are hardened through a single-step electrical induction process. This method significantly enhances the teeth's hardness, thus minimizing the likelihood of breakage. Our aftermarket sprockets maintain the same hardness levels as the original OEM sprockets, offering an excellent balance of durability and cost-effectiveness.
Installation Reminder:
  • It is advisable to replace the sprockets and rubber tracks concurrently to promote even wear. Note that this sprocket does not include replacement bolts; you will need nine 12mm bolts for mounting.
Full Undercarriage Components for the CAT 303.5 Mini Excavator:
  • Idler Options: Choose between idler part numbers 140-4009 or 172-2017 after verifying your machine's serial number and specs.
  • Rear Idler: Use part number 172-2100 for a reliable fit.
  • Drive Sprocket: The 172-1965 sprocket ensures full compatibility.
  • Top Roller: Part number 146-6064 helps keep the track in line.
  • Bottom Roller: Part number 185-7280 supports the machine's weight for smooth operation.
This detailed information will help you understand the features of our aftermarket drive sprocket and how it will integrate seamlessly with your Caterpillar® 303.5 mini excavator's undercarriage system.

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Why choose Fulian Sprocket

  • Custom Solutions for Old Machines

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Warranty for Fulian Undercarriage Parts

Congratulations on your purchase! We stand by the quality of our products and are committed to ensuring your satisfaction. To provide you with peace of mind, we offer a comprehensive warranty on parts for a duration of 24 months from the date of purchase.

Terms and Conditions:

Depending on the nature of the issue, we will either replace the defective parts or give you credit toward the purchase of a new replacement part.

If you can't see what you are looking for, please get in touch with us, as we are constantly adding to our product range.

FAQ

How often do excavator sprockets need to be changed?

A sharp gear indicates that the gear is worn. Check whether there are grooves around and under the gear that are similar to the chain shape. This "shadow" wear indicates that the gear has been seriously worn and should be replaced.

What are the contributing factors that lead to the deterioration of sprockets on an excavator?

Several factors lead to wear and tear of excavator sprockets, including:Heavy usage, Abrasive environments, Improper track tension, Inadequate maintenance, Rough operation, Quality of the sprockets, Misalignment of components, Age and metal fatigue

What maintenance routine can I follow to ensure my excavator sprockets last longer?

To extend the life of your excavator sprockets, implement a maintenance routine that includes:Regular cleaning of debris and dirt,Frequent inspections for wear,Ensuring correct track tension,Prompt replacement of worn parts,Lubrication to reduce friction,Using high-quality replacement sprockets,Operator training to prevent harsh handling.