One New Aftermarket Replacement Oil Seal for National / SKF - Multi-Brand ApplicationThis aftermarket replacement oil seal is a direct substitute for National part number 415991 and SKF part number 34889. It is a radial shaft seal used to retain lubricant and exclude contaminants from shaft and bearing assemblies across a wide range of construction, agricultural, and heavy-duty equipment applications. The seal features a nitrile rubber (NBR) lip for oil resistance and durability under demanding conditions.Specifications Seal Type: Double Lip / Single Lip Radial Shaft Seal Shaft Diameter (ID): 3.500 in (88.9 mm) Outside Diameter (OD): 4.501 - 4.506 in (114.3 mm) Width: 0.438 - 0.468 in (11.1 - 11.9 mm) Material: Nitrile Rubber (NBR) Design: CRWHA1 (SKF designation) Compatible EquipmentFits Case / Fits Case IH: Verify fitment using your OEM part number before ordering. Compatible part numbers D29517 and 406050 are associated with Fits Case/IH applications.Fits Caterpillar (Fits CAT): Cross-reference number 1J2150 is associated with Fits Caterpillar engines and equipment including 3196, 3406, 3406B, 3406C, C-12, C-13, C13, D346, 16G, 16H, 16H NA, 16M, 641B, 651B, 657B, and more. Verify with your serial number and service manual before ordering.Heavy-Duty Truck / Multi-Brand: Also cross-references to Mack, Fits International-Navistar, and NTN applications (see interchange numbers below). Consult your service manual and verify your OEM part number before ordering.Replaces Part Number(s):34889, 415991, 406050, 416414, 1J2150, 3B9116, D29517Aftermarket Interchange NumbersNational / Federal-Mogul: 415991, 415146N, 712750 | SKF / CR Seals: 34889 | NTN: NS415991 | Stemco: 429-0002 | Timken: 415991, 712750, 415146N | Fits International-Navistar: 478864C1 | Mack: 88AX440P4New aftermarket replacement part - not remanufactured, not used.
