Pin-On Hydraulic Thumb Progressive EZ Link - Patriot

The Thumb with the best range of tuck & extension in the industry is now available in the Patriot product line.

Patriot Progressive EZ Link Thumbs are custom designed and manufactured to work with ACS Excavator Buckets so that bucket and thumb integrate seamlessly, giving the operator the widest range of motion possible in all job applications.

The innovative thumb design allows for the best range of tuck & extension in the industry. The patented design protects the cylinder rod by placing it up & away from potential contact with handled material while maintaining a full transfer of force to the thumb.  The unique positioning of the cylinder rod keeps it from being damaged, resulting in lower cost to both own and operate.

The Serrated Thumb Teeth are crafted from AR400 steel, ensuring long service and even wear over the life of the attachment.


Designed to be installed in around 1/2 the time of conventional thumbs — about six hours.

The progressive link design was created by ACS Industries. United States Patent number 7,818,901.

Tech Specs

Bucket Compatibility

For the best customer satisfaction, lowest installation cost and maximum productivity ACS; Pin-on thumbs are designed specifically for use with ACS Buckets. Requires compatible auxiliary hydraulics called "Thumb Activation Kits", also known as "Wet Kits" - not included.

Adding a Coupler

ACS will vary the thumb length according to whether or not you plan to use the thumb on a coupler-equipped machine. A thumb on a coupler-equipped excavator needs to be longer in order to interlace correctly with the bucket teeth.

OEM Availability

  • Case
  • Doosan
  • John Deere
  • Komatsu
  • Volvo
Coupler Size Table
Class Minimum Stick Length Weight
US Pounds
All weights are approximate. Weights are estimated assuming no add-ons, options or payloads.
8-14 Metric Tons
17,600-30,800 lbs
9′ 5″ 1,170 lbs
14-18 Metric Tons
30,600-39,600 lbs
9′ 8″ 1,200 lbs
18-22 Metric Tons
39,600-48,400 lbs
9′ 6″ 1,740 lbs
22-28 Metric Tons
48,400-61,600 lbs
9′ 9″ 1,815 lbs
28-36 Metric Tons
61,600-79,200 lbs
11′ 9″ 2,200 lbs


  • Greater Range of Motion

    Greater Range of Motion The patented design allows for a full 162 degrees of thumb rotation, enabling the thumb to follow the bucket without dropping handled material.
Patriot Best Price. Fastest Turnaround.

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Dealer Pricing

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1 (330) 678-2511

Related Products

  • Illustration demonstrating a typical EZ Link Thumb install over an ACS Bucket.

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