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Metro Moulded Parts

Firewall Grommet For Buick Limited Series 90 1937-41, Special 40 37-40; SM 32-B

Firewall Grommet For Buick Limited Series 90 1937-41, Special 40 37-40; SM 32-B

Regular price $11.99 USD
Regular price Sale price $11.99 USD
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This firewall grommet is designed for 1937-1941 Buick Century Series 60, Limited Series 90, Roadmaster Series 70 and 80, Special Series 40 and 40-A, and Super Series 50 cars. It fits a 3/4" hole with a 1/4" inner diameter and a 1-1/4" outer diameter, making it a perfect fit for thermostat, oil throttle, choke, vacuum, and speedometer cables. Crafted from state-of-the-art rubber compounds, this grommet is resistant to chemicals, sunlight, and ozone, ensuring long-lasting durability and performance. Its sleek black finish blends seamlessly into the firewall, maintaining the classic look of your vintage Buick while providing a secure seal to protect against wear and tear. Backed by Metro’s 30-year Platinum Warranty, this part guarantees peace of mind for decades to come.

Features and Benefits

  • Fits perfectly into a 3/4" hole for a secure installation.
  • Protects cables from wear and tear with a durable rubber seal.
  • Resistant to chemicals, sunlight, and ozone for long-lasting performance.
  • Backed by a 30-year warranty for confidence in your purchase.


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
  • 1937 - 1941 Buick Century Series 60
  • 1937 - 1941 Buick Limited Series 90
  • 1940 - 1941 Buick Roadmaster Series 70
  • 1937 - 1940 Buick Roadmaster Series 80
  • 1937 - 1940 Buick Special 40
  • 1941 - 1941 Buick Special Series 40-A
  • 1940 - 1941 Buick Super Series 50

SM 32-B

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