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Caterpillar (CAT) 301.5 301.6 301.8 Sprocket (Fit Caterpillar (CAT) 301.5 301.6 301.6C 301.8 301.8C Mini Excavator)

Basic Info.

  • Item Fit: Caterpillar (CAT) 301.5 301.6 301.6C 301.8 301.8C
  • Item Condition: New
  • Item Weight: 10 lbs
  • Item Maker: FLundercarriage
  • Place of Origin: Quanzhou

Delivery Info.

  • Inventory Class: Standing
  • Packaging: Carton/Pallet
  • ETD: 24-72 Hours
  • ETA: 5-30 Days
Aftermarket Drive Sprocket Replacement - Part Number 139-4304 for Caterpillar Mini Excavators
Upgrade your Caterpillar mini excavator with our aftermarket drive sprocket, designed for durability and performance. Ideal for early serial models, ensure compatibility with newer models by verifying your specifications.
Compatible Models:
  • Cat 301.5 (S/N 3Y2) - For MNH serial numbers, please confirm specifications.
  • Cat 301.6 - For MY6 serial break, specifications verification is required.
  • Cat 301.6C
  • Cat 301.8
  • Cat 301.8C
Recommendation:
For optimal undercarriage performance and longevity, we recommend replacing your sprockets and rubber tracks simultaneously as these parts are engineered to wear together.
Sprocket Specifications:
  • Teeth: 19
  • Bolt Holes: 9
  • Inside Diameter: 6 1/2 inches
  • Outside Diameter: 11 1/2 inches
OEM Part Numbers:
  • Caterpillar® Dealer Part Number: 139-4304, superseded by 535-9004.
Guaranteed Fit Models:
This sprocket (139-4304 or 535-9004) is guaranteed to fit the following Caterpillar® models:
  • 301.5
  • 301.6C
  • 301.7CR
  • 301.8C
No Alternate Part Listings:
This particular sprocket (Part Number 139-4304 or 535-9004) is specially designed for the listed models without known alternative part listings, ensuring a guaranteed fit.
Complete Undercarriage Parts for Cat 301.5, 301.6, and 301.8:
  • Sprocket: Part Number 139-4304 for precise engagement.
  • Idler: Part Number 226-4049 to maintain track tension.
  • Bottom Rollers: Choose between Part Numbers 139-6261 or 232-4466, with serial verification necessary for model 301.5.
Enhance your Caterpillar mini excavator's undercarriage with our aftermarket drive sprocket, ensuring reliable performance and extended lifespan. To maintain compatibility and performance, verify your excavator's specifications before making a purchase.

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Why Choose FL Undercarriage

  • 20+ Years Experience

  • 100+ Dealers Globally

  • 300000+ stock Keeping units

  • 50000000+ USD Annual sales

Product Range

Our sprockets are built to withstand extreme conditions, ensuring smooth and efficient power transmission in your machinery. Crafted from high-quality materials, they offer exceptional wear resistance and durability, making them ideal for heavy-duty applications. Trust our sprockets to enhance the performance and longevity of your equipment, keeping operations running smoothly.

Machinery brands our parts are suitable for Bobcat, Caterpillar, Case, Doosan, GEHL, Hitachi, Hyundai, IHI, Kubota, Kobelco, Komatsu, Pel-Job, Takeuchi, Volvo etc.

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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.