Description

Stiff Link Thumbs Attachments
Stiff Link Thumb 4-tooth 545 mm (22 in): 378-2324
Cat® Stiff Link Thumbs are the ideal add-on to add versatility to your Cat machines. Designed for specific excavator and bucket combinations, they help you take on more materials without compromising fuel efficiency. We built them to upgrade your machine to handle larger, bulkier materials.
Number of Teeth/Tines
4
Stored Height
21.5 in
Overall Width
21.5 in
Specifications
Number of Teeth/Tines
4
Stored Height
18.8 in
Overall Width
21.5 in
Weight
573 lb
Length
47.8 in
Rotation
Two static working positions at 90° and 105°
Tines Included
Yes
Machine Class
11 to 19 ton excavators
Interface Type
Pin Grabber
Features
Increase the Productivity of Your Machine
- Two static working positions at 90° and 105°
- Closed face design holds fine materials better, provides better retention when working in loose material, and prevents material from packing in the frame.
- Expanded machine compatibility range due to a lighter design
- Increase the productivity with periodic use where a bucket or rake alone would fall short
More Versatility, More Work Done
- Works with bucket or rake to grab, pick, sort, and move materials
- Stiff Link Thumbs are universal to across range of bucket sizes, making them easier to pair to buckets in a mixed fleet
- Get the best thumb for your tasks. With three tine configurations, select the best option for a wide or narrow grip, shorter center times for 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
- Patented alignment system allows for one person to easily deploy or store the thumb
- 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.
Why choose RIMCO Barbados

Quality
Machines are built with quality and durability to help you build a better, more sustainable world.
Exceptional Service
Expect the best and count on us with our full service and support to ensure your equipment’s performance and longevity.
All Emcompassing
Largest inventory of rental equipment that helps you achieve every step/stage/phase of your project.
Experienced
Trusted advisors to help you find and choose the right equipment.
SUPPORTED EQUIPMENT
313 GC – Tier 3 Small Excavators
Net Power – ISO 9249
70.6 kW
Operating Weight
12400 kg
Maximum Digging Depth
5570 mm
320 – Tier 3 Medium Excavators
Net Power – ISO 9249
117 kW
Operating Weight
21300 kg
Maximum Digging Depth
6720 mm
323 – Tier 3 Medium Excavators
Net Power – ISO 9249
117 kW
Operating Weight
22900 kg
Maximum Digging Depth
6730 mm
330 GC – Tier 3 Medium Excavators
Net Power – ISO 9249
157.8 kW
Operating Weight
28900 kg
Maximum Digging Depth
7260 mm
330 Medium Excavators
Net Power – ISO 9249
193.8 kW
Operating Weight
31400 kg
Maximum Digging Depth
7250 mm
336 Large Excavators
Net Power – ISO 9249
311 HP
Operating Weight
79100 lb
Maximum Digging Depth
24.7 ft
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