The number "SKF47691" refers to the SKF Scotseal PlusXL Wheel Seal, a premium drive axle wheel seal designed for heavy-duty 
  • Type: Drive Axle Wheel Seal.
  • Design: Scotseal PlusXL, offering extended life and maximum sealing under various driving conditions.
  • Material: Hydrogenated Nitrile Butadiene Rubber (HNBR), chosen for its high-temperature resistance (up to 300°F) and compatibility with synthetic lubricants.
  • Key dimensions:
    • Shaft Diameter: 4.767 inches.
    • Seal Bore Diameter: 6.308 inches.

    • Seal Shoulder Outside Diameter: 6.324 inches.
    • Seal Width: 1.035 inches.
  • Applications: Suitable for a range of heavy-duty vehicles including Ford, Navistar, Arvin Meritor/Rockwell, Eaton, Kenworth, Peterbilt, Freightliner, and Volvo-White (38,000–46,000 lb drive axles).
    • Benefits:
      • Protects the axle.
      • Prevents lubricant leakage.
      • Prevents contaminants from entering the wheel.
      • Preserves the lubricant.
      • Reduces maintenance needs and downtime. 
    Equivalent part numbers
    SKF47691 has several equivalent or alternative part numbers, including:
    • SKF: , 47692
    • Stemco: 309-0973, 392-9131, 393-0173, 393-0273
    • National: 370003A, 380003A
    • Freightliner: 47691, 47695, CHR 47691, CHR 47694, CHR 47695, XCR 47694
    • Volvo: 21404020, 
    • Mack: 145847694, 47694
    • GM OEM: 15679880