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Metro Moulded Parts

Large Hole Plug For Mercedes-Benz 300SEL 1963-1969, 300SL 1954-1963; SM 99-B

Large Hole Plug For Mercedes-Benz 300SEL 1963-1969, 300SL 1954-1963; SM 99-B

Regular price $15.49 USD
Regular price Sale price $15.49 USD
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This large hole plug is designed for classic Mercedes-Benz cars, specifically fitting 1951-1966 Mercedes-Benz 300, 300S, 300SL, 300SE, and 300SEL models, as well as 1968-1969 Mercedes-Benz 300SEL. Measuring 2-7/16", it is crafted to cover holes over gas tank bolts in the trunk and rear shock areas, ensuring a clean and secure finish. Made with state-of-the-art rubber compounds, this plug is resistant to chemicals, sunlight, and ozone, offering long-lasting durability. Up to six plugs can be used per car, providing a snug and reliable fit. Backed by Metro’s Platinum Warranty, this part is protected for 30 years, giving you peace of mind for decades.

Features and Benefits

  • Fits 2-7/16" holes for a precise and secure fit.
  • Protects against chemical, sunlight, and ozone damage.
  • Enhances the trunk and rear shock area with a clean finish.
  • Backed by a 30-year warranty for long-term confidence.


Warranty Info
Metro leading warranty is the best in the industy. This part carries our platinum warranty and is guaranteed for a full 30 years from date of purchase. We promise that if your Metro part fails during this time we will replace it free of charge. That is our "No Hassle" guarantee. Do not settle for a simple promise of satisfaction.


Convertible Top Specialists has been in business since 1992 selling the best in convertible related parts and weatherstripping for most cars' trucks and vans.

In stock items usually ship in 1 business day. Out of stock items please allow for 3-6 weeks.

Listed Applications
  • 1951 - 1956 Mercedes-Benz 300
  • 1960 - 1962 Mercedes-Benz 300
  • 1951 - 1955 Mercedes-Benz 300S
  • 1956 - 1958 Mercedes-Benz 300S
  • 1960 - 1966 Mercedes-Benz 300SE
  • 1963 - 1965 Mercedes-Benz 300SEL
  • 1968 - 1969 Mercedes-Benz 300SEL
  • 1954 - 1963 Mercedes-Benz 300SL

SM 99-B

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