OEM Caterpillar rubber O-ring seal supplied in original yellow CAT poly bag. Marked 1 9X3969 1006477 (MPN 9X3969 / 1006477). New old stock unused but packaging shows storage wear and scuffs. Designed for fluid sealing in Caterpillar engines, pumps, valves and related assemblies. Verify part number and compatibility with your machine prior to purchase. Sold as shown.

OEM Caterpillar rubber O-ring seal supplied in original yellow CAT poly bag. Marked 1 9X3969 1006477 (MPN 9X3969 / 1006477). New old stock unused but packaging shows storage wear and scuffs. Designed for fluid sealing in Caterpillar engines, pumps, valves and related assemblies. Verify part number and compatibility with your machine prior to purchase. Sold as shown.