Oldsmobile Dynamic 88 Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your Oldsmobile Dynamic 88 with precision-fit replacement weatherstrip and seals designed specifically for your vehicle. Each seal is engineered to match the original profile and mounting groove of your Oldsmobile Dynamic 88—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our Oldsmobile Dynamic 88 weatherstrip is manufactured from durable, weather-resistant rubber compounds such as EPDM, engineered for an exact OEM-quality fit and finish. These materials resist sunlight, ozone, and chemical exposure while maintaining flexibility across temperature extremes, so your new seals stay soft and pliable instead of cracking or hardening the way factory-original rubber does over time.

Use the Vehicle Selector above to find the correct weatherstrip for your Oldsmobile Dynamic 88, or browse below to explore available options. Whether you’re chasing down a stubborn water leak or completing a full restoration, Factory Interiors makes it easy to achieve a tight, factory-quality seal with precision-fit weatherstrip for your Oldsmobile Dynamic 88.

1965-1966 Oldsmobile Dynamic 88 Dash and Firewall Grommet. Two Hole Type. Each.

This dash and firewall grommet is designed for cars and trucks, including the 1965-1969 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models listed in the fitment details. Measuring precisely to fit snugly, this two-hole grommet is crafted from advanced rubber compounds that resist chemicals, sunlight, and ozone, ensuring long-lasting durability. Its sleek black finish and robust construction make it a reliable solution for sealing and protecting wiring or hoses passing through the dash or firewall. Installation is straightforward, as the grommet is designed to fit securely into the designated openings, providing a tight seal to prevent leaks and debris from entering. Backed by Metro’s 30-year warranty, this part guarantees peace of mind for decades.

Features and Benefits
  • Protects wiring and hoses from wear and damage.
  • Resists harsh environmental factors like sunlight and ozone.
  • Ensures a tight, secure seal to prevent leaks.
  • Easy to install for a perfect fit.

1958 Oldsmobile Dynamic 88 Firewall Grommet. For Park Brake Cable. Angled Hole. Fit's 1" Hole.

This firewall grommet, designed for classic cars like the 1939-1948 Buick and Cadillac models and 1950-1958 Oldsmobile models, fits a 1-inch hole and features an angled opening for the park brake cable. Crafted from advanced rubber compounds, it resists chemicals, sunlight, and ozone, ensuring long-lasting durability. Its sleek black finish blends seamlessly with your vehicle's firewall, providing a clean and professional look while effectively sealing the brake cable opening to prevent debris and moisture from entering. Backed by Metro's 30-year Platinum Warranty, this grommet offers peace of mind and reliable performance for decades.

Features and Benefits
  • Fits a 1-inch hole with an angled opening for precise cable placement.
  • Made from durable, chemical-resistant rubber for long-term use.
  • Protects against sunlight, ozone, and environmental damage.

1964-1966 Oldsmobile Dynamic 88 Rocker Arm Cover. Neoprene Plug. Fits 1" Hole. Each.

This rocker arm cover plug is designed for 1964-1967 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac cars, as well as 1964-1967 Chevrolet El Camino trucks, fitting a 1" hole with precision. Crafted from state-of-the-art rubber compounds, this plug is resistant to chemicals, sunlight, and ozone, ensuring long-lasting durability and performance. Its sleek black finish and snug fit make it an essential component for sealing and protecting your engine's rocker arm cover, preventing leaks and keeping contaminants out. Backed by Metro's Platinum 30-year warranty, you can trust this part to perform reliably for decades.

Features and Benefits
  • Fits a 1" hole for a secure and precise installation.
  • Made with advanced rubber compounds for durability.
  • Resistant to chemicals, sunlight, and ozone for long-lasting use.

1958-1960 Oldsmobile Dynamic 88 Firewall and Utility Grommet. Fits 3/4" Hole. 3/16" I.D.

This firewall and utility grommet, designed for classic cars, fits a 3/4" hole with a 3/16" inner diameter, making it a perfect fit for vehicles like the 1940-1957 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models listed. Crafted from state-of-the-art rubber compounds, it is resistant to chemicals, sunlight, and ozone, ensuring long-lasting durability and performance. The grommet features a sleek black finish and a sturdy design that seals and protects wiring or hoses passing through the firewall, preventing wear and tear. Backed by Metro Moulded Parts' 30-year warranty, this grommet offers peace of mind and reliability for your restoration project.

Features and Benefits
  • Fits securely in a 3/4" hole with a 3/16" inner diameter.
  • Protects wiring and hoses from damage and wear.
  • Resistant to chemicals, sunlight, and ozone for long-lasting use.

1966 Oldsmobile Dynamic 88 Positive Crankcase Ventilation Grommet.

This Positive Crankcase Ventilation (PCV) grommet is designed for cars and trucks, measuring 11/16" wide by 1-5/8" long with a 15/16" inner diameter, ensuring a precise fit for your vehicle. Crafted by Metro Moulded Parts, this grommet is built with over 50 tons of pressure, delivering exceptional definition and durability. It is compatible with a wide range of 1964-1967 models, including Buick Electra, Chevrolet Impala, Pontiac GTO, and Cadillac Fleetwood, among others. This grommet is essential for maintaining proper ventilation in your engine, preventing harmful gases from escaping while ensuring smooth operation. Backed by Metro's 30-year warranty, this part offers long-lasting reliability and peace of mind.

Features and Benefits
  • Ensures proper engine ventilation for optimal performance.
  • Built with high-pressure molding for durability and precision.
  • Fits a wide range of classic 1964-1967 vehicles.

$12.99
• SALE $10.95
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1966 Oldsmobile Dynamic 88 Positive Crankcase Ventilation Grommet.

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