Cat Excavator Pins, Bushings, & Links

Pins, bushings, and links for Caterpillar excavators, covering boom, arm, and bucket connection points across a wide range of Cat excavator series from compact to large-class machines. These undercarriage and attachment components are critical to maintaining accurate joint alignment, reducing slop, and extending the working life of your excavator's front linkage.

Fits Models At A Glance

• 300 Series (Mini/Compact): 301.5, 302.5, 303, 303.5, 304, 305, 306, 307, 308
• 312–315 Series: 312, 312B, 312C, 312D, 313, 314, 315, 315B, 315C, 315D
• 316–325 Series: 316, 317, 318, 319, 320, 320B, 320C, 320D, 321, 322, 323, 324, 325
• 326–340 Series: 326, 328, 329, 330, 330B, 330C, 330D, 336, 336D, 340
• 349–395 Series: 349, 352, 365, 374, 390, 395

Key Notes

• Application: Boom-to-frame, boom-to-arm, arm-to-bucket, and bucket link pivot points
• Material: Hardened steel pins and bronze or steel bushings for wear resistance
• Fitment: Verify pin diameter, length, and bore size against your machine's serial number
• Condition: New and used pins, bushings, and link assemblies available
• Compatibility: Suitable for OEM-spec and aftermarket bucket and thumb attachments

Why Choose Broken Tractor

• ✅ Covers Cat excavators from compact to large class
• ✅ New and used linkage components available nationwide
• ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH