- Cylinder Rebuild/Repair Seal Kit for Caterpillar Model 943 & 943B Crawler Loader
- All Serial Numbers (03Y1-UP; 04Z1-UP; 19Z1-UP; 31Y1-UP)
- Cylinder #: 1U4802, 3G4653
- Rod: 2-1/2"
- Bore: 4-3/4"
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