Details

• Brand:

  

• SKU:

  40228-31G00

• Other Names:

  Water Deflector, Seal-Dust

• Description:

  Description:

  Genuine OEM Nissan Front Steering Knuckle Dust Seal — Part # 40228-31G00

  Replace your worn, cracked, or missing knuckle dust seal with the factory-correct unit for classic Nissan 4WD trucks and SUVs. This genuine OEM seal (also known as the knuckle dust shield or water deflector) protects the front steering knuckle and hub assembly from dust, mud, and water intrusion on 4WD models — a critical component for maintaining proper front axle integrity on these legendary platforms.

  Part Details:

  • Part Number: 40228-31G00
  • Replaces: 40228-50W00, 40228-50W01
  • Other Names: Knuckle Dust Shield, Seal-Dust, Water Deflector, Dust Seal, Knuckle Seal
  • Condition: New, Genuine OEM Nissan
  • Position: Front — Reference #2 on diagram
  • Application: 4WD models only
  • Sold Individually: 1 seal per listing — order 2 for both sides

  ⚠️ 4WD Note: This dust seal is specific to 4WD-equipped models only. 2WD models do not use this knuckle seal. Always confirm your drivetrain with your VIN before ordering.

  ⚠️ Quantity Note: Each vehicle requires 2 seals — one left and one right front knuckle. Order 2 to complete a full front axle service.

  Compatible Vehicles (Partial List — 2,116 variants, 1983–1997):

  • 1983–1986 Nissan 720 Pickup (4WD)
  • 1986–1994 Nissan Hardbody Pickup D21 (4WD)
  • 1995–1997 Nissan Hardbody Pickup D21U (4WD)
  • 1987–1995 Nissan Pathfinder (4WD)
  • 1991 Nissan NX (4WD — confirm VIN)

  Always confirm fitment using your VIN or chassis code before purchasing.

  Why buy OEM? Aftermarket knuckle dust seals for these classic platforms are frequently incorrect dimensions or wrong material hardness — fitting loosely and failing to seal properly against mud and water. The genuine Nissan seal is the factory-correct size and rubber compound for reliable protection of the front knuckle assembly.

  When you need this part:

  • Front hub or knuckle service — always replace the dust seal
  • Seal torn, cracked, or missing — knuckle exposed to contamination
  • Restoration of a classic Hardbody, D21, or Pathfinder to factory specification
  • Preventive replacement during front axle rebuild or wheel bearing service
  • Off-road use requiring fresh knuckle protection hardware

  Ships fast from Walser Nissan Wayzata — an authorized Nissan dealership. Message us your VIN and we'll confirm fitment before you buy.

• Condition: New
• Replaces:

  4022850w00, 4022850w01

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