SKF 18912 Differential Pinion Seal - Rear

Overview

SKF 18912 is a differential pinion seal built for rear axle sealing applications that need reliable lubricant retention and contamination control. It uses a nitrile sealing surface and application-specific dimensions to match the shaft and housing requirements listed below.

Compatible with classic Chrysler, Dodge, and Plymouth rear axle applications, this seal is a fitment-based replacement for vehicles such as the Dodge Charger, Plymouth Fury, and Chrysler Imperial. The SKF 18912 part number is also useful when cross-checking service records or matching an existing seal reference.

Key Features

• Nitrile sealing surface for common driveline sealing demands.
• Application-specific width, outside diameter, and shaft diameter for proper fit.
• Rear differential pinion seal for lubricant control at the pinion area.
• SKF seal design backed by long-standing sealing engineering experience.

Detailed Description

SKF 18912 is a differential pinion seal for rear axle assemblies that use the listed ring gear and pinion shaft configurations. The seal measures 0.500 in width, 3.111 in outside diameter, and 1.875 in shaft diameter, with a nitrile sealing surface type. Those dimensions make it a fitment-specific service part for older Chrysler, Dodge, and Plymouth driveline applications.

SKF has a long history in seal development, including early integrated shaft seal design and continued work on bonded sealing technology. For buyers servicing a Chrysler Imperial, Dodge D100 Series, or Plymouth Barracuda rear axle, the SKF 18912 part number helps identify the correct seal for the application.

This part cross-references Monroe Shocks & Struts (e.g., 1828719, 145818912) for the same application.

What It Is Used For

• Stopping gear oil seepage at the differential pinion area.
• Replacing a worn or hardened axle seal.
• Addressing contamination entry around the pinion shaft.
• Restoring sealing performance in rear axle service work.

Installation Notes and Tips

Verify the rear axle configuration, ring gear size, and pinion shaft dimensions before ordering. Several listed applications include notes for specific production dates or bearing I.D. requirements, so match the vehicle and axle details carefully. Clean the sealing bore and shaft surface before installation, and inspect the pinion area for wear that could affect seal life.

Quality Assurance

SKF designs and manufactures seals to specific application requirements using premium materials and established sealing methods. The brand’s seal engineering background supports consistent fit and long-term service in driveline sealing applications.