About This Seal Kit
2 options are listed for CAT120B Bucket Cylinder Seal Kit — the photos show the exact assembly for each option: Option 1 (this page) · Option 2. Not sure which one matches? Send us the nameplate or a photo on WhatsApp and we will confirm within minutes.
CAT seal and repair kits — boom, arm, bucket and control valve seal kits for CAT306/312/120B-class machines, plus travel motor, swing motor, center joint, pilot valve and travel valve kits. Every kit is assembled to the original part numbers.
The CAT120B Bucket Cylinder Seal Kit is an OEM-standard aftermarket replacement built to the original mounting, spline and port specification. Bolt-on installation — no machining or adaptation required.
Every unit is inspected and pressure-checked before dispatch and ships with a test report. Stock models leave within 48 hours; non-stock units are typically ready in 5–15 days. Sea, air and express shipping are available worldwide, and our team answers quote requests within 12 hours — usually much faster on WhatsApp.
