Fel-Pro 73193 Engine Oil Filler Cap Seal

Fel-Pro 73193 Engine Oil Filler Cap Seal

Fel-Pro 73193 is a premium rubber engine oil filler cap seal for vehicles that use an OEM bonded cap seal design. It is built around application-specific sealing dimensions to support a precise fit on a wide range of GM, Buick, Cadillac, Chevrolet, GMC, and related models.

Use this Fel-Pro oil filler cap seal when servicing a worn or hardened cap seal on engines that call for a 28 mm-style bonded seal. The part number 73193 is commonly searched for GM oil filler cap seal replacement applications across many model years.

Key Features

• Premium-grade rubber construction
• Inside diameter: 1.100 in. / 27.94 mm
• Outside diameter: 1.510 in. / 38.3 mm
• Thickness: 0.021 in. / 5.33 mm
• Services OEM bonded cap seal applications
• Engine oil filler cap seal for select GM-family vehicles

Detailed Description

Fel-Pro 73193 is an engine oil filler cap seal made for applications that use an OEM bonded cap seal layout. Fel-Pro states its gaskets and sealing components are engineered for complete vehicle sealing using application-specific materials, and this seal follows that approach with rubber construction and precise dimensional sizing. The 28 mm inside diameter makes it a direct search match for many Buick Enclave, Chevrolet Silverado 1500, and GMC Sierra 1500 oil filler cap seal applications, along with numerous Cadillac and Chevrolet passenger vehicles and trucks.

This part cross-references GM OE numbers 12593348 and 12632361 for the same application.

What It Is Used For

• Replacing a hardened or flattened oil filler cap seal
• Restoring a proper seal at the engine oil filler cap
• Addressing oil seepage around the cap area
• Correcting a loose-feeling or poorly sealing cap interface
• Servicing OEM bonded cap seal designs on GM vehicles

Installation Notes and Tips

• Verify the cap seal dimensions before installation: 27.94 mm inside diameter, 38.3 mm outside diameter, and 5.33 mm thickness.
• Inspect the oil filler cap for wear, cracking, or distortion before installing the new seal.
• Clean the sealing surface so the rubber seal seats evenly.
• Confirm the vehicle uses an OEM bonded cap seal style before ordering.
• For fitment reference: Fits 2021-2022 Chevrolet Silverado 1500, N/A; Fits 2020-2022 Chevrolet Corvette, N/A; Fits 2021-2022 GMC Sierra 1500, N/A.

Quality Assurance

Fel-Pro sealing products are positioned for professional-grade service and application-specific fitment. Part number 73193 is a premium rubber seal built to service the listed OEM bonded cap seal applications across 1999-2022 model years.