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The Caterpillar Stiff Link Thumb is a cost-effective, high-performance addition to Cat Hydraulic Excavators. Featuring a rigid link and a multiple-position bracket, the Stiff Link Thumb works with the bucket to easily pick up, handle and load irregular or loose materials.


307 linkage
With 2 TeethSpecificationsNo. of Teeth2Width12 in / 306 mmLinkage Family307Length49 in / 1244.6 mmWeight401 lb / 181.9 kgHeight (folded)20 in / 508 mm (more)
 
307 linkage
With 3 TeethSpecificationsNo. of Teeth3Width14 in / 356 mmLinkage Family307Length49 in / 1244.6 mmWeight491 lb / 222.7 kgHeight (folded)20 in / 508 mm (more)
 
315 linkage
With 2 TeethSpecificationsNo. of Teeth2Width27 in / 694 mmLinkage Family315Length53 in / 1346.2 mmWeight840 lb / 381 kgHeight (folded)21 in / 533.4 mm (more)
 
315 linkage
With 3 TeethSpecificationsNo. of Teeth3Width19 in / 482 mmLinkage Family315Length53 in / 1346.2 mmWeight855 lb / 387.8 kgHeight (folded)21 in / 533.4 mm (more)
 
315 linkage
With 4 TeethSpecificationsNo. of Teeth4Width27.56 in / 700 mmLinkage Family315Length53 in / 1346.2 mmWeight938.95 lb / 425.9 kgHeight (folded)21 in / 533.4 mm (more)
 
B linkage
With 2 TeethSpecificationsNo. of Teeth2Width25 in / 647 mmLinkage FamilyBLength62 in / 1574.8 mmWeight1082 lb / 490.7 kgHeight (folded)31 in / 787.4 mm (more)
 
C linkage
With 3 TeethSpecificationsNo. of Teeth3Width21 in / 533 mmLinkage FamilyCLength55 in / 1397 mmWeight1078 lb / 488.9 kgHeight (folded)29 in / 736.6 mm (more)
 
C linkage
With 4 TeethSpecificationsNo. of Teeth4Width26 in / 665 mmLinkage FamilyCLength55 in / 1397 mmWeight1150 lb / 521.5 kgHeight (folded)29 in / 736.6 mm (more)
 
C linkage
With 4 TeethSpecificationsNo. of Teeth4Width31 in / 793 mmLinkage FamilyCLength55 in / 1397 mmWeight1197 lb / 542.9 kgHeight (folded)29 in / 736.6 mm (more)
 
C linkage
With 2 TeethSpecificationsNo. of Teeth2Width13 in / 330 mmLinkage FamilyCLength55 in / 1397 mmWeight970 lb / 439.9 kgHeight (folded)29 in / 736.6 mm (more)
 
C linkage
With 2 TeethSpecificationsNo. of Teeth2Width31 in / 793 mmLinkage FamilyCLength72 in / 1828.8 mmWeight1228 lb / 556.9 kgHeight (folded)29 in / 736.6 mm (more)
 
C linkage
With 2 TeethSpecificationsNo. of Teeth2Width25 in / 647 mmLinkage FamilyCLength72 in / 1828.8 mmWeight1184 lb / 537 kgHeight (folded)28 in / 711.2 mm (more)
 
C linkage
With 4 TeethSpecificationsNo. of Teeth4Width31 in / 793 mmLinkage FamilyCLength62 in / 1574.8 mmWeight1084 lb / 491.6 kgHeight (folded)31 in / 793 mm (more)
 
D linkage
With 2 TeethSpecificationsNo. of Teeth2Width18 in / 455 mmLinkage FamilyDLength73 in / 1854 mmWeight1607 lb / 728.8 kgHeight (folded)22 in / 558.8 mm (more)
 
D linkage
With 4 TeethSpecificationsNo. of Teeth4Width25 in / 636 mmLinkage FamilyDLength73 in / 1854.2 mmWeight1889 lb / 856.7 kgHeight (folded)22 in / 558.8 mm (more)
 
D linkage
With 4 TeethSpecificationsNo. of Teeth4Width32 in / 819 mmLinkage FamilyDLength73 in / 1854.2 mmWeight1940 lb / 879.8 kgHeight (folded)22 in / 558.8 mm (more)
 
D linkage
With 3 TeethSpecificationsNo. of Teeth3Width36 in / 908 mmLinkage FamilyDLength73 in / 1854.2 mmWeight1752 lb / 794.6 kgHeight (folded)22 in / 558.8 mm (more)
 
D linkage
With 2 TeethSpecificationsNo. of Teeth2Width25 in / 637 mmLinkage FamilyDLength79 in / 2006.6 mmWeight1834 lb / 831.7 kgHeight (folded)23 in / 584.2 mm (more)
 
D linkage
With 2 TeethSpecificationsNo. of Teeth2Width32 in / 819 mmLinkage FamilyDLength79 in / 2006.6 mmWeight1891 lb / 857.6 kgHeight (folded)23 in / 584.2 mm (more)
 
D linkage
With 2 TeethSpecificationsNo. of Teeth2Width36 in / 908 mmLinkage FamilyDLength79 in / 2006.6 mmWeight1917 lb / 869.4 kgHeight (folded)23 in / 584.2 mm (more)
 
DB linkage
With 4 TeethSpecificationsNo. of Teeth4Width32 in / 819 mmLinkage FamilyDBLength73 in / 1854.2 mmWeight1940 lb / 879.8 kgHeight (folded)22 in / 558.8 mm (more)
 

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