330 - Serial Number Prefix 8FK: After Serial Number 8FK00001
330 - Serial Number Prefix 2EL: After Serial Number 2EL00001
330 - Serial Number Prefix 2ZM: After Serial Number 2ZM00001
330 - Serial Number Prefix 6SK: After Serial Number 6SK00001
330 - Serial Number Prefix 8RL: After Serial Number 8RL00001
330 FM L
330 L - Serial Number Prefix 8FK: After Serial Number 8FK00001
330 L - Serial Number Prefix 2EL: After Serial Number 2EL00001
330 L - Serial Number Prefix 2ZM: After Serial Number 2ZM00001
330 L - Serial Number Prefix 6SK: After Serial Number 6SK00001
330 L - Serial Number Prefix 8RL: After Serial Number 8RL00001
Key Notes
Part Number: 7Y4906
Weight: 791.7 lbs
Type: Cylinder Group / Boom Cylinder Group
Serial Number Note: Serial number breaks apply - verify your machine serial number before ordering
Shipping Note: Ships via LTL Truck Freight
Application: Replacement cylinder group / boom cylinder group for Caterpillar 330, 330 FM L, 330 L excavators
Condition: Aftermarket replacement part
Why Choose Broken Tractor
✅ Covers Multiple Series: Fits machines across several model families, listed above.
✅ Easy Returns: Our 30-day return policy gives you confidence ordering the right part the first time.
✅ Ships Quick from U.S. Warehouses: Real people pull, pack, and ship your order fast.
$7,473.00/ea
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
Can’t Find What You’re Looking For?
Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.
Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.
Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.
Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please fill out our form, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! fill out our form to make a request here at Return Request Form and we would be pleased to help you.