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One Account. All of Cat.
Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
Welcome! Sign In to personalize your Cat.com experience
If you already have an existing account with another Cat App, you can use the same account to sign in here
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One Account. All of Cat.
Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
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Note that by entering data in this application for purposes of obtaining driving directions, you are providing such data directly to Google LLC and/or its affiliates. By clicking "I Agree" or by using the Google Maps functionality to obtain driving directions, you acknowledge and agree that use of Google Maps is subject to the then-current Google Maps/Google Earth Additional Terms of Service at
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Cat® Pro Plus Thumbs are the ideal add-on to bring a new level of versatility to your Cat machines. Each one is designed for your excavator and bucket combination, so you can take on bigger, bulkier loads without compromising fuel efficiency. We built them to handle more, tough materials to fit your daily needs.
Features At A Glance
100% Rotation Coverage
Match the bucket’s rotation 100% with load control at all operating limits and positions
Keep precise control your load with an added 60-70 degrees of rotation coverage over Pro Thumbs
Complete below-grade, vertical, or tasks in confined areas with ease. Building high rock walls and loading high-sided trucks are examples of when load control at height is critical.
Increase the productivity of your machine from digging to material handling
More Versatility, More Production
Works with bucket or rake to grab, pick, sort, and move materials
Maintain grip and hold on load with the width of the thumb spanning across the bucket
Secure materials between the thumb and bucket or rake with the unique curvature of the thumb and serrations on the tines
Get the best thumb for your tasks. With four tine configurations, select the best option for full grip or straddling the boom during transport.
Managing multiple attachments for a fleet is easier with a coupler system. Select thumb models are compatible with Cat Pin Grabber Couplers, allowing for machines of similar sizes to share thumbs and other attachments.
Simple to Operate
Easily controlled from cab separate from the bucket
Folds against machine boom for easy storage during travel or other activities
Simple installation, maintenance, and overall operation make thumbs a simpler, more affordable owning and operating choice than grapples
Boost Efficiency and Productivity with Integrated Technology
Never waste time looking for your thumbs again. Cat asset tracking is available for your attachments or anything in your fleet you need to track.
Track your entire fleet of attachments and machines from one source. View thumbs with asset tracking within VisionLink® alongside Product Link™ subscribed equipment.
Keep your assets secure. Thumbs with an asset tracker send an alert if they leave an easy-to-setup site boundary.
Product Specifications for Pro Plus Thumb 4-tooth 568 mm (22 in): 578-2529
Number of Teeth/Tines
44
Stored Height
25.8 in656 mm
Overall Width
31.5 in799 mm
Weight
886 lb402 kg
Length
48.1 in1222 mm
Rotation
Match the bucket's rotation 100 percentMatch the bucket's rotation 100 percent
Tines Included
YesYes
Machine Class
11 to 15 ton excavators11 to 15 ton excavators
Interface Type
Pin-onPin-on
Product Specifications for Pro Plus Thumb 4-tooth 568 mm (22 in): 578-2529
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