Skip to product information
1 of 1

Metro Moulded Parts

Wire Harness / Firewall Grommet For Buick Super Series 50 1940-1941; SM 31

Wire Harness / Firewall Grommet For Buick Super Series 50 1940-1941; SM 31

Regular price $31.99 USD
Regular price Sale price $31.99 USD
Sale Sold out
Shipping calculated at checkout.

Designed for 1937-1941 Buick Century, Limited, Roadmaster, Special, and Super Series cars, this wire harness/firewall grommet is a critical component for protecting your vehicle's wiring as it passes through the firewall. Made with state-of-the-art rubber compounds, this grommet is resistant to chemicals, sunlight, and ozone, ensuring long-lasting durability and performance. Its precise fit and robust construction make it easy to install, sealing off the firewall opening to prevent moisture, dirt, and debris from entering the engine bay. The grommet features multiple openings to accommodate various wire sizes, providing a clean and organized look while safeguarding your wiring system. Backed by Metro's Platinum Warranty, this part is covered for 30 years, giving you peace of mind and confidence in its quality.

Features and Benefits

  • Protects wiring from damage and environmental exposure.
  • Resistant to chemicals, sunlight, and ozone for long-lasting use.
  • Easy installation with a precise fit for 1937-1941 Buick models.
  • Backed by a 30-year warranty for reliable performance.


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 31

View full details