SKF 5046 Power Steering Pump Shaft Seal

SKF 5046 Power Steering Pump Shaft Seal

SKF 5046 is a power steering pump shaft seal built for steering systems that need reliable fluid retention and contamination control. It is sized for a 0.500 shaft diameter and uses a polyacrylate sealing surface to match the demands of the application and operating environment.

Key Features

• Power steering pump shaft seal for steering system sealing service
• 0.500 shaft diameter for the specified pump shaft size
• 1.128 outside diameter for proper housing fitment
• 0.313 width for compact seal placement
• Polyacrylate sealing surface type for fluid sealing performance
• Direct fit for 1955-1959 Chevrolet Bel Air and 1959 Chevrolet Impala applications

Detailed Description

SKF 5046 is engineered as a shaft seal for power steering pumps, helping maintain hydraulic fluid inside the pump while keeping dirt and other contaminants out. SKF has a long history in seal design and manufacturing, and this part reflects that focus with premium material selection and application-specific construction. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. It is a strong match for classic Chevrolet steering service, including 1955-1959 Chevrolet Bel Air and 1959 Chevrolet Impala models that require this seal size and configuration. The SKF 5046 part number is also useful when searching for an OE-style replacement by dimensions and application.

Common Problems This Seal Can Address

• Power steering fluid leakage at the pump shaft
• Contamination entering the steering pump housing
• Loss of hydraulic pressure from worn sealing surfaces
• Noise or poor steering assist related to fluid loss
• Service issues on classic Chevrolet Bel Air and Impala steering pumps

Installation Notes and Tips

Verify shaft diameter, outside diameter, and seal width before installation to confirm the seal matches the pump housing. Inspect the shaft and sealing surface for wear, scoring, or corrosion before assembly. Clean the pump bore thoroughly and install the seal squarely to avoid distortion. For 1955-1959 Chevrolet Bel Air and 1959 Chevrolet Impala steering pump service, confirm the replacement part number 5046 against the original seal dimensions before reassembly.

Quality Assurance

SKF designs and manufactures seals to specific application requirements using materials selected for the operating environment. The brand’s seal engineering heritage dates back to the first integrated shaft seal in 1928, and SKF products are built to meet high manufacturing standards for durability and safety.