Home / Heavy Machinery / Caterpillar Replacement Parts / 3N-8506 – RING-PISTON CAT ALTERNATIVE PART 3N-8506 – RING-PISTON CAT ALTERNATIVE PART SKU: 3N8506-ALT Manufacturer: DSG Bulk Orders Competitive Pricing Short Lead Times Consolidated Shipping Prompt Response Request a Quote Description CAT Alternative Part Related products 032-9946 – GASKET, OIL PAN CAT ALTERNATIVE PART 030-3239 – RING CAT Alternative Part 033-2380 – BEAIRNG SET, MAIN .020 CAT ALTERNATIVE PART 030-4605 – ORING CAT Alternative Part Popular Brands Featured Categories Lubricants Safety Desiccant Breathers Ventilation Flame Detection Gas Detection Air Compressors Tools Valves Aids to Navigation Hoists Visual Oil Analysis