336 Excavator

Thumbs

Cat® Thumbs transform your excavator into a versatile material handling machine. Clear, demolish, move... whatever you need to.

Pro Series Hydraulic Thumbs

Cat® Pro Series Hydraulic Thumbs (Pro and Pro Plus models) offer the best load control and are rugged enough for demolition, handling rip rap and other heavy-duty tasks.

Image Model Number of Teeth/Tines Stored Height Overall Width
671 mm (26 in) 4 Teeth/2 Tine Progressive Link Thumb for 8 Ton Mini Excavators 26.4 in 17.7 in Details
 
858 mm (34 in) 6 Teeth/2 Tine Progressive Link Thumb for 8 Ton Mini Excavators 33.8 in 17.7 in Details
 
PROPLUS Thumb 522 mm (21 in) 25.3 in 20.6 in Details
 
PROPLUS Thumb 671 mm (26 in) 38.27 in 26.42 in Details
 
PROPLUS Thumb 843 mm (33 in) 41.3 in 33.2 in Details
 
PROPLUS Thumb 563 mm (22 in) 25.8 in 22.2 in Details
 
PROPLUS Thumb 591 mm (23 in) 28.7 in 23.3 in Details
 
PROPLUS Thumb 636 mm (25 in) 28.1 in 25 in Details
 
PROPLUS Thumb 793 mm (31 in) 41.3 in 31.2 in Details
 
PROPLUS Thumb 885 mm (35 in) 39.4 in 34.8 in Details
 
PROPLUS Thumb 985 mm (39 in) 33.8 in 38.8 in Details
 
PROPLUS Thumb 1095 mm (43 in) 39.4 in 43.1 in Details
 
PROPLUS Thumb 1206 mm (47 in) 39.8 in 47.5 in Details
 
PROPLUS Thumb 1207 mm (48 in) 41.3 in 47.5 in Details
 
PROPLUS Thumb 568 mm (22 in) 25.8 in 31.5 in Details
 
PROPLUS Thumb 641 mm (25 in) 28.7 in 25.2 in Details
 
PROPLUS Thumb 660 mm (26 in) 25.3 in 26 in Details
 
PROPLUS Thumb 713 mm (28 in) 33.7 in 28.1 in Details
 
PROPLUS Thumb 741 mm (29 in) 36.5 in 29.2 in Details
 
PROPLUS Thumb 757 mm (30 in) 28.1 in 29.8 in Details
 
PROPLUS Thumb 758 mm (30 in) 31.54 in 29.84 in Details
 
PROPLUS Thumb 775 mm (31 in) 35.2 in 30.5 in Details
 
PROPLUS Thumb 799 mm (31 in) 25.3 in 31.5 in Details
 
PROPLUS Thumb 882 mm (35 in) 33.7 in 34.7 in Details
 
PROPLUS Thumb 926 mm (37 in) 35.4 in 36.5 in Details
 
PROPLUS Thumb 955 mm (38 in) 39.4 in 37.6 in Details
 
PROPLUS Thumb 957 mm (38 in) 41.3 in 37.7 in Details
 
PROPLUS Thumb 1043 mm (41 in) 33.7 in 41.1 in Details
 
PROPLUS Thumb 1138 mm (45 in) 41.3 in 44.8 in Details
 
PROPLUS Thumb 1139 mm (45 in) 33.8 in 44.8 in Details
 
PROPLUS Thumb 726 mm (29 in) 25.8 in 28.6 in Details
 
PROPLUS Thumb 923 mm (36 in) 28.7 in 36.3 in Details
 
PROPLUS Thumb 926 mm (36 in) 35.2 in 36.5 in Details
 
PROPLUS Thumb 1005 mm (40 in) 25.3 in 39.6 in Details
 
PROPLUS Thumb 1086 mm (43 in) 35.2 in 42.8 in Details
 
PROPLUS Thumb 1206 mm (48 in) 36.5 in 47.5 in Details
 
PROPLUS Thumb 1332 mm (52 in) 36.5 in 52.4 in Details
 
PROPLUS Thumb 879 mm (35 in) 25.3 in 34.6 in Details
 
PRO Thumb 1095 mm (43 in) 38.8 in 43.1 in Details
 
PRO Thumb 671 mm (26 in) 40.4 in 26.4 in Details
 
PRO Thumb 741 mm (29 in) 39.8 in 29.2 in Details
 
PRO Thumb 758 mm (30 in) 40.4 in 29.8 in Details
 
PRO Thumb 885 mm (35 in) 38.8 in 34.8 in Details
 
PRO Thumb 926 mm (37 in) 38.8 in 36.5 in Details
 
PRO Thumb 955 mm (38 in) 38.8 in 37.6 in Details
 
PRO Thumb 522 mm (21 in) 25.9 in 22.2 in Details
 
PRO Thumb 563 mm (22 in) 25.9 in 22.2 in Details
 
PRO Thumb 591 mm (23 in) 28.7 in 23.3 in Details
 
PRO Thumb 636 mm (25 in) 28.2 in 25 in Details
 
PRO Thumb 793 mm (31 in) 41.3 in 31.2 in Details
 
PRO Thumb 882 mm (35 in) 33.7 in 34.7 in Details
 
PRO Thumb 985 mm (35 in) 33.8 in 34.7 in Details
 
PRO Thumb 1207 mm (48 in) 41.3 in 47.5 in Details
 
PRO Thumb 568 mm (22 in) 25.9 in 22.4 in Details
 
PRO Thumb 641 mm (25 in) 28.2 in 25.2 in Details
 
PRO Thumb 660 mm (26 in) 25.9 in 26 in Details
 
PRO Thumb 713 mm (28 in) 33.7 in 28.1 in Details
 
PRO Thumb 757 mm (30 in) 28.2 in 29.8 in Details
 
PRO Thumb 775 mm (31 in) 32.8 in 30.5 in Details
 
PRO Thumb 799 mm (31 in) 25.9 in 31.5 in Details
 
PRO Thumb 799 mm (32 in) 25.2 in 31.5 in Details
 
PRO Thumb 843 mm (33 in) 41.3 in 33.2 in Details
 
PRO Thumb 957 mm (38 in) 33.7 in 37.7 in Details
 
PRO Thumb 1043 mm (41 in) 33.7 in 41.1 in Details
 
PRO Thumb 1138 mm (45 in) 41.3 in 44.8 in Details
 
PRO Thumb 1139 mm (45 in) 33.8 in 44.8 in Details
 
PRO Thumb 726 mm (29 in) 25.2 in 28.6 in Details
 
PRO Thumb 923 mm (36 in) 28.7 in 36.3 in Details
 
PRO Thumb 926 mm (36 in) 35.2 in 36.5 in Details
 
PRO Thumb 1005 mm (40 in) 25.9 in 39.6 in Details
 
PRO Thumb 1086 mm (43 in) 36.5 in 42.8 in Details
 
PRO Thumb 1206 mm (48 in) 36.5 in 47.5 in Details
 
PRO Thumb 1332 mm (52 in) 32.8 in 52.4 in Details
 
PRO Thumb 879 mm (35 in) 25.2 in 34.6 in Details
 

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Stiff Link Thumbs

Cat® Stiff Link Thumbs feature a rigid link and are attached to the excavator stick with a weld-on bracket. The bucket curls into the thumb to pick, grab, sort and handle various types of material and objects found on job sites.

Image Model Number of Teeth/Tines Stored Height Overall Width
432 mm (17 in) 6 Teeth/2 Tine Stiff Link Thumb for 8 Ton Mini Excavators 22.8 in 17 in Details
 
437 mm (17 in) 4 Teeth/2 Tine Stiff Link Thumb for 8 Ton Mini Excavators 18.3 in 17.2 in Details
 
454 mm (18 in) 0 Teeth/0 Tine Stiff Link Thumb for Backhoe Loaders 17 in 17.9 in Details
 
454 mm (18 in) 2 Teeth/2 Tine Stiff Link Thumb for Backhoe Loaders 17 in 17.9 in Details
 
454 mm (18 in) 4 Teeth/2 Tine Stiff Link Thumb for Backhoe Loaders 17 in 17.9 in Details
 
SL Thumb 345 mm (14 in) 18.8 in 14 in Details
 
SL Thumb 401 mm (16 in) 20.4 in 18.1 in Details
 
SL Thumb 446 mm (18 in) 22 in 17.6 in Details
 
SL Thumb 460 mm (18 in) 23.1 in 18.1 in Details
 
SL Thumb 490 mm (19 in) 23.2 in 19.3 in Details
 
SL Thumb 496 mm (20 in) 22.83 in 19.5 in Details
 
SL Thumb 512 mm (20 in) 18.8 in 20 in Details
 
SL Thumb 601 mm (24 in) 23.6 in 23.7 in Details
 
SL Thumb 702 mm (28 in) 23.6 in 27.6 in Details
 
SL Thumb 505 mm (20 in) 18.8 in 20 in Details
 
SL Thumb 545 mm (22 in) 18.8 in 21.5 in Details
 
SL Thumb 595 mm (23 in) 20.4 in 23 in Details
 
SL Thumb 596 mm (24 in) 23.1 in 23.5 in Details
 
SL Thumb 606 mm (24 in) 23.1 in 23.8 in Details
 
SL Thumb 664 mm (26 in) 19.5 in 26 in Details
 
SL Thumb 715 mm (28 in) 20.4 in 28 in Details
 
SL Thumb 729 mm (29 in) 22.1 in 28.7 in Details
 
SL Thumb 732 mm (29 in) 23.1 in 28.8 in Details
 
SL Thumb 756 mm (30 in) 27.7 in 29.8 in Details
 
SL Thumb 818 mm (32 in) 23.6 in 32.2 in Details
 
SL Thumb 837 mm (33 in) 24.4 in 33 in Details
 
SL Thumb 870 mm (34 in) 23.6 in 34.3 in Details
 
SL Thumb 900 mm (35 in) 27.7 in 35.4 in Details
 
SL Thumb 545 mm (21 in) 20.39 in 21.4 in Details
 
SL Thumb 868 mm (34 in) 20.4 in 34 in Details
 
SL Thumb 873 mm (34 in) 22 in 34.4 in Details
 

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Utility Thumbs

Cat® Utility Thumbs offer a cost-effective thumb design with hydraulic thumb control, combined with wide compatibility with machines, buckets and couplers.

Image Model Number of Teeth/Tines Stored Height Overall Width
292 mm (11 in) 5 Teeth/2 Tine Utility Thumb for 1 Ton Mini Excavators 12.7 in 11.5 in Details
 
326 mm (13 in) 8 Teeth/2 Tine Utility Thumb for 3 Ton Mini Excavators 11.5 in 12.8 in Details
 
346 mm (14 in) 5 Teeth/2 Tine Utility Thumb for 2 Ton Mini Excavators 11 in 13.6 in Details
 
346 mm (14 in) 5 Teeth/2 Tine Utility Thumb for 302.5C Mini Excavators 14.1 in 13.6 in Details
 
356 mm (14 in) 8 Teeth/2 Tine Utility Thumb for 5 Ton Mini Excavators 13.1 in 14 in Details
 
435 mm (17 in) 4 Teeth/2 Tine Utility Thumb for 8 Ton Mini Excavators 18.3 in 17.1 in Details
 
435 mm (17 in) 6 Teeth/2 Tine Utility Thumb for 8 Ton Mini Excavators 22.7 in 17.1 in Details
 
454 mm (18 in) 0 Teeth/0 Tine Utility Thumb for Backhoe Loaders 17 in 17.9 in Details
 
457 mm (18 in) 6 Teeth/2 Tine Utility Thumb for 10 Ton Mini Excavators 18.6 in 18 in Details
 
UTIL Thumb 355 mm (14 in) 18.7 in 12.6 in Details
 
UTIL Thumb 521 mm (21 in) 18.6 in 24.1 in Details
 
UTIL Thumb 600 mm (24 in) 18.6 in 16 in Details
 
UTIL Thumb 612 mm (24 in) 19.6 in 24.1 in Details
 

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Thumb Tines

Cat® Thumb Tines for Backhoe Loaders are designed to resist bending and abrasion. Each Thumb Tine will work with a range of bucket widths. Consult your dealer to select the right tine/thumb combination for the types of buckets being used to ensure proper thumb operation.

Image Model Number of Teeth/Tines Width Overall Length
2 Tooth - A1 Thumb Tine Type for Backhoe Loaders 14.3 in 24.8 in Details
 
2 Tooth - B1 Thumb Tine Type for Backhoe Loaders 14.3 in 24.8 in Details
 
2 Tooth - C1 Thumb Tine Type for Backhoe Loaders 14.3 in 25 in Details
 
3 Tooth - A2 Thumb Tine Type for Backhoe Loaders 14.3 in 28 in Details
 
3 Tooth - B2 Thumb Tine Type for Backhoe Loaders 14.3 in 28 in Details
 
3 Tooth - C2 Thumb Tine Type for Backhoe Loaders 14.3 in 28.2 in Details
 
4 Tooth - A3 Thumb Tine Type for Backhoe Loaders 14.3 in 31.4 in Details
 
4 Tooth - B3 Thumb Tine Type for Backhoe Loaders 14.3 in 31.4 in Details
 
4 Tooth - C3 Thumb Tine Type for Backhoe Loaders 14.3 in 31.5 in Details
 
5 Tooth - A4 Thumb Tine Type for Backhoe Loaders 14.3 in 34.8 in Details
 
5 Tooth - A5 Thumb Tine Type for Backhoe Loaders 14.3 in 38.2 in Details
 
5 Tooth - B4 Thumb Tine Type for Backhoe Loaders 14.3 in 34.7 in Details
 
5 Tooth - B5 Thumb Tine Type for Backhoe Loaders 14.3 in 38.6 in Details
 
5 Tooth - C4 Thumb Tine Type for Backhoe Loaders 14.3 in 34.5 in Details
 
5 Tooth - C5 Thumb Tine Type for Backhoe Loaders 14.3 in 38.2 in Details
 

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