null
CALL or TEXT (800) 909-7060

Cat Boom Cylinder Group for 345C, 345C L, 345D, 345D L & More – 3891041

SKU:
3891041
FitsModel:
345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 349D2, 349D2 L
ListDescription:
Boom Cylinder Group
Cat Boom Cylinder Group for 345C, 345C L, 345D, 345D L & More – 3891041
Part # 3891041

Fits Models At A Glance

  • Caterpillar Excavators:
    • 345C - Serial Number Prefix DHP: After Serial Number DHP00001
    • 345C - Serial Number Prefix BWY: After Serial Number BWY00001
    • 345C - Serial Number Prefix TAJ: After Serial Number TAJ00001
    • 345C - Serial Number Prefix ELS: After Serial Number ELS00001
    • 345C L - Serial Number Prefix ESD: After Serial Number ESD00001
    • 345C L - Serial Number Prefix BWY: After Serial Number BWY00001
    • 345C L - Serial Number Prefix ELS: After Serial Number ELS00001
    • 345C L - Serial Number Prefix FPC: After Serial Number FPC00001
    • 345C L - Serial Number Prefix GPH: After Serial Number GPH00001
    • 345C L - Serial Number Prefix LYS: After Serial Number LYS00001
    • 345C L - Serial Number Prefix S5M: After Serial Number S5M00001
    • 345D - Serial Number Prefix NEG: After Serial Number NEG00001
    • 345D - Serial Number Prefix L5R: After Serial Number L5R00001
    • 345D L - Serial Number Prefix JKN: After Serial Number JKN00001
    • 345D L - Serial Number Prefix PBT: After Serial Number PBT00001
    • 345D L - Serial Number Prefix EEH: After Serial Number EEH00001
    • 345D L - Serial Number Prefix YEE: After Serial Number YEE00001
    • 345D L - Serial Number Prefix RGG: After Serial Number RGG00001
    • 345D L - Serial Number Prefix RGD: After Serial Number RGD00001
    • 345D L - Serial Number Prefix BYC: After Serial Number BYC00001
    • 345D L - Serial Number Prefix KFH: After Serial Number KFH00001
    • 345D L - Serial Number Prefix NLM: After Serial Number NLM00001
    • 345D L VG
    • 349D - Serial Number Prefix MEN: After Serial Number MEN00001
    • 349D - Serial Number Prefix GKF: After Serial Number GKF00001
    • 349D L - Serial Number Prefix MEN: After Serial Number MEN00001
    • 349D L - Serial Number Prefix PZG: After Serial Number PZG00001
    • 349D L - Serial Number Prefix JGB: After Serial Number JGB00001
    • 349D L - Serial Number Prefix WTD: After Serial Number WTD00001
    • 349D L - Serial Number Prefix GKF: After Serial Number GKF00001
    • 349D L - Serial Number Prefix FLA: After Serial Number FLA00001
    • 349D2 - Serial Number Prefix YAG: After Serial Number YAG00001
    • 349D2 - Serial Number Prefix RAN: After Serial Number RAN00001
    • 349D2 - Serial Number Prefix PFD: After Serial Number PFD00001
    • 349D2 L - Serial Number Prefix GAX: After Serial Number GAX00001
    • 349D2 L - Serial Number Prefix WEC: After Serial Number WEC00001
    • 349D2 L - Serial Number Prefix YAG: After Serial Number YAG00001
    • 349D2 L - Serial Number Prefix RAN: After Serial Number RAN00001
    • 349D2 L - Serial Number Prefix PFD: After Serial Number PFD00001
    • 349D2 L - Serial Number Prefix XAC: After Serial Number XAC00001

Key Notes

  • Part Number: 3891041
  • Weight: 960 lbs
  • Type: 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 boom cylinder group for Caterpillar 345C, 345C L, 345D and other excavators
  • Condition: Aftermarket replacement part

Why Choose Broken Tractor

  • ✅ Stocked in Our Warehouse
  • ✅ 30-Day Return Policy: Order with confidence - if it's not right, send it back.
  • ✅ Dealer Alternative Pricing: Keep your machine working without paying dealership prices.
$8,922.00

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.

1-800-909-7060 Parts Request Form

FEATURED PRODUCTS

Shipping & Return Policy

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.

Privacy Policy | Terms & Conditions

Building Quality Since 2006  |  Copyright © 2026 Broken Tractor LLC - All Rights Reserved


Product: Category: Brand: Head Title: Cat Boom Cylinder Group | Broken Tractor | 3891041