Replacement Hydraulic Thumb Bucket Clamp Cylinder for Caterpillar (PN: 5206109) Excavator Models 305-306 Series

Replacement Caterpillar Mini Excavator Thumb Cylinder 520-6109 for 305 CR, 305E, 305E2, 305.5E2, 306, 306.5

$1,400.00

Fast Ship What's This?
Need help with your cylinder part number? Call us at (888) 771-1894 with your machine's serial number, and we'll ensure you get the perfect replacement!

Specifications for 2153699392

CategoryReplacement Welded Rod Hydraulic Cylinders » Excavator
Fits Manufacturer Caterpillar
Models Caterpillar 305 CR, Caterpillar 305.5E2, Caterpillar 305.5E2 CR, Caterpillar 305E, Caterpillar 305E2, Caterpillar 305E2 CR, Caterpillar 306, Caterpillar 306 CR, Caterpillar 306.5
Function Thumb / Bucket Clamp
Features Double-Acting Rod Hydraulic Cylinder (DAR)
SKU 2153699392
Weight 56.0 lbs
Bore

3.00″
Rod

1.75″
Stroke

20.67″
Closed

31.50″
Open Extended Length

52.17″
Operating Pressure (PSI)

3000
Base End Mount Type

Drilled Thru Lug
Base Pin Size

1.375″
Base Mount Width

1.97″
Rod End Mount Type

Cross-Tube
Rod Pin Size

1.375″
Rod Mount Width

1.97″
Extend Port/Plunger

-6 SAE ORB
Retract Port/Plunger

-6 SAE ORB
Old OEM PNs

268-8225

Description

Designed for the thumb function on models like the Caterpillar 305E2 CR and 306 CR, this replacement cylinder (PN: 5206109) controls the clamping motion used to grab and lift materials. It’s a direct replacement that meets or exceeds OEM performance, delivering reliable movement and strength where it’s needed most.

Bore:

3.00″

Rod:

1.75″

Stroke:

20.67″

Closed:

31.50″

Open Extended Length:

52.17″

Operating Pressure (PSI):

3000

Base End Mount Type:

Drilled Thru Lug

Base Pin Size:

1.375″

Base Mount Width:

1.97″

Rod End Mount Type:

Cross-Tube

Rod Pin Size:

1.375″

Rod Mount Width:

1.97″

Extend Port/Plunger:

-6 SAE ORB

Retract Port/Plunger:

-6 SAE ORB

Old OEM PNs:

268-8225

Returning Merchandise

New and un-used stock items maybe returned for refund within 30 days of purchase. No returns are accepted without prior authorization, call 888-771-1894 or email sales@hydrauliccylindersinc.com to receive a return authorization number. Make sure to properly package your item to avoid damage in transit. Hydraulic Cylinders Inc. is not responsible for any shipping charges or damages for the return of product to Hydraulic Cylinders Inc. It is the responsibility of the sender to provide for all shipping, handling, and insurance charges.

Warranty Coverage:
Hydraulic Cylinders Inc. warrants its Replacement Welded Rod Cylinders against defects in materials and workmanship for 12 months from the date of purchase.

Exclusions & Conditions:

  • Disassembly voids warranty coverage.
  • Misuse, misapplication, or unauthorized modification is not covered.
  • HCI does not provide engineering guidance or warrant product fitness for any specific application.
  • It is the customer’s responsibility to ensure product suitability and compliance with all regulations and application requirements.

Claims Process:
Contact Hydraulic Cylinders, Inc. directly to initiate a warranty review. Claims require return and evaluation of the product.

Related Products