SKF 23691 Engine Timing Cover Seal

Engine timing cover seal overview

SKF 23691 is an engine timing cover seal built for specific Ford medium-duty applications. It uses a polyacrylate sealing surface and precise dimensions to help maintain a proper seal where the timing cover meets the shaft area.

Fits 1987-1998 Ford F-700, N/A. Fits 1987-1998 Ford F-800, N/A. Fits 1987-1994 Ford F-600, N/A. Fits 1987-1989 Ford B-600, N/A. Fits 1987-1989 Ford B-700, N/A.

Key features

• SKF part number 23691 for direct identification.
• Polyacrylate sealing surface for application-specific sealing performance.
• Measured to 0.625 width, 3.256 outside diameter, and 2.375 shaft diameter.
• Engine sealing component for controlling fluid retention and contamination.

Detailed description

SKF 23691 is engineered as a timing cover seal for Ford F-700, F-800, F-600, B-600, and B-700 applications listed in the fitment data. The seal is built around premium materials and specific design requirements so it matches the environment at the sealing point and helps keep lubricants in place while limiting contaminant entry. SKF 23691 is a practical replacement choice when the original seal has hardened, worn, or lost its sealing ability.

SKF has a long history in seal development, including early advances in integrated shaft seal design. That background is reflected in the construction approach behind SKF 23691, which is manufactured to consistent quality standards for long service life and dependable sealing performance. If you are sourcing SKF 23691 for a Ford medium-duty truck, verify the listed dimensions and fitment before installation.

What this part is used for

• Stopping oil seepage at the timing cover sealing point.
• Replacing a seal that has become brittle or worn.
• Reducing contamination entry into the engine sealing area.
• Restoring proper sealing after service work on the cover area.

Installation notes and tips

Confirm the shaft diameter, outside diameter, and width against the removed part before installation. Inspect the mating surfaces for wear, scoring, or debris that could affect sealing. Clean the sealing area thoroughly and install the seal squarely to avoid distortion. This part cross-references Monroe Shocks & Struts (e.g., 47682, 55186757) for the same application.

Quality assurance

SKF manufactures seals to specific designs and premium material standards, with a focus on correct fit and long-term sealing performance. Part number 23691 is backed by SKF’s established seal engineering experience.