InMotion WS1974 Wheel Seal - Front Inner or Rear Outer

Wheel Seal for Nissan 720 Rear Outer

InMotion WS1974 is a nitrile wheel seal built for the rear outer position on 1980-1986 Nissan 720 models with Single Rear Wheels (SRW). It is engineered to form a secure barrier that helps keep moisture and road debris out of the differential pinion area while helping control fluid leakage.

With precise dimensions and a durable sealing material, this InMotion wheel seal supports consistent sealing performance in demanding driving conditions. It is a direct-fit service part for Nissan 720 rear outer applications and is identified by part number WS1974.

Key Features

• Nitrile sealing material for dependable resistance to contaminants
• Inside diameter: 1.969 in.
• Outside diameter: 2.648 in.
• Width: 0.433 in.
• Shaft diameter: 1.969 in.
• Housing bore: 2.638 in.
• Fits the rear outer position on 1980-1986 Nissan 720 with Single Rear Wheels (SRW)
• Part number WS1974 for accurate ordering and service matching

Detailed Description

InMotion WS1974 is a precision wheel seal for the rear outer application on Nissan 720 trucks from 1980 through 1986 with Single Rear Wheels. The nitrile construction is selected for sealing performance in driveline service, helping maintain a tight interface between the shaft and housing bore. This reduces the chance of lubricant loss and limits the entry of dirt, water, and other contaminants into the sealed area.

For technicians and owners servicing a Nissan 720 rear outer seal, WS1974 provides the dimensional consistency needed for proper fitment. The seal’s 1.969-inch inside diameter and shaft diameter, along with its 2.648-inch outside diameter and 2.638-inch housing bore, support accurate installation in the intended differential pinion sealing application.

What It Helps Address

• Gear oil seepage at the rear outer seal area
• Contamination from dust, moisture, and road debris
• Wear caused by compromised sealing surfaces
• Loss of sealing integrity in driveline service
• Service replacement needs on Nissan 720 rear outer applications

Installation Notes and Tips

Confirm the rear outer position and SRW configuration before installation. Inspect the shaft and housing bore for wear, scoring, or corrosion, since seal performance depends on clean, smooth mating surfaces. Lubricate the sealing lip with the correct fluid during assembly and install the seal squarely to avoid distortion. Verify dimensions against the removed part when servicing a Nissan 720 to ensure WS1974 is the correct match.

Quality Assurance

InMotion manufactures this seal with high-quality materials and precision-focused construction for driveline sealing service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.