FAG SS4627 Differential Pinion Seal - Rear or Rear Outer

FAG SS4627 Differential Pinion Seal

The FAG SS4627 differential pinion seal is built for driveline sealing applications that demand precise dimensions and durable sealing materials. With a Viton sealing element, metal construction, spring tension, and an auxiliary lip, this seal is designed to help maintain lubricant retention and keep contamination out of the differential assembly.

For buyers searching for a differential pinion seal for FAG SS4627, or an OE-style seal for axle and driveline service, this part is specified with a 114.325 mm bore diameter, 114.452 mm outside diameter, and 17.221 mm width. It is a direct-fit style sealing component for service work where exact dimensions matter.

Key Features

• Part number: SS4627
• Brand: FAG
• Seal type: metal, spring, auxiliary lip
• Sealing material: Viton
• Bore diameter: 114.325 mm (4.501 in.)
• Seal outside diameter: 114.452 mm (4.506 in.)
• Seal width: 17.221 mm (3 in.)
• Designed for differential pinion sealing applications

Detailed Description

FAG engineers sealing components to meet vehicle manufacturer specifications, using materials selected for demanding driveline environments. The SS4627 uses Viton for chemical and heat resistance, while the metal case, spring, and auxiliary lip help maintain sealing contact at the pinion area. This makes it a practical choice for differential service where lubricant control and contamination resistance are critical. If you are sourcing a FAG SS4627 seal for axle repair, the dimensional data should be verified against the original part before installation.

This part cross-references Bremi 30100 for the same application. It is also listed against interchange number 4134627100. For shoppers comparing differential pinion seal options for FAG SS4627, these references can help confirm the correct service part.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination from dirt, dust, and moisture entering the seal zone
• Loss of lubricant that can affect bearing and gear protection
• Wear-related sealing issues in driveline service
• Replacement needs during differential maintenance or rebuild work

Installation Notes and Tips

Confirm bore diameter, outside diameter, and seal width against the original component before installation. Inspect the pinion surface for scoring, corrosion, or wear that could affect sealing performance. Clean the housing thoroughly and install the seal squarely to avoid distortion of the sealing lip. For vehicle-specific service, verify the application by part number and dimensions rather than appearance alone. Fits are not listed for this part, so use the measurements and interchange data to confirm the correct differential pinion seal for your repair.

Quality Assurance

FAG designs sealing products to meet manufacturer specifications and works with suppliers to maintain its quality standards. The SS4627 is built with application-specific materials and construction intended for demanding driveline use.