Buick Century Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your Buick Century 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 Buick Century—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our Buick Century 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 Buick Century, 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 Buick Century.

1954-1958 Buick Century Flexible Glass-Run Channel.

This flexible glass-run channel is designed for classic cars, measuring 72 inches in length and crafted to fit side windows with precision. It features a mohair-lined, cloth-covered design with a stainless steel bead, ensuring a smooth and secure fit while enhancing durability and style. The channel can be sectioned into two equal lengths for easier overseas shipping, making it versatile for various installation needs. It is compatible with a wide range of vintage vehicles, including 1933-1957 Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac, Nash, Studebaker, Hudson, Frazer, and Kaiser models, among others. This part ensures accurate seal profiles, reducing noise and preventing water or debris from entering the vehicle. With its high-quality materials and thoughtful design, this glass-run channel is a reliable choice for restoring your classic car to its original glory.

Features and Benefits
  • Can be sectioned for easier shipping and installation flexibility.
  • Mohair lining ensures smooth window operation and prevents scratches.
  • Provides a snug fit for side windows to reduce noise and drafts.
  • Stainless steel bead adds durability and a polished finish.

$152.99
• SALE $122.95
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1954-1958 Buick Century Flexible Glass-Run Channel.
1978-1981 Buick Century Rear Molded Door Weatherstrip Seals. Fits 4-Door Wagon Only, with RWD.

Designed for 4-door wagons with RWD, these rear molded door seals are a perfect fit for 1978-1987 models, including Buick Century, Chevrolet Malibu, Oldsmobile Cutlass, Pontiac Grand LeMans, Pontiac LeMans, Buick Regal, and Pontiac Bonneville. This pair of left and right seals is crafted by SUPERsoft, ensuring a snug fit and long-lasting durability. Measuring precisely to match your vehicle's specifications, these seals are 30% softer than other brands, providing a superior seal against water, dust, and noise. Unlike other products, they are made without accelerants or cheap fillers, which means they resist aging and cracking over time. Backed by a 30-year warranty, these seals are built to last and give you peace of mind.

Features and Benefits
  • Provides a tight seal to keep out water, dust, and noise.
  • Made with premium materials that resist aging and cracking.
  • Easy to install for a perfect fit on your 4-door wagon.

$183.99
• SALE $146.95
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1978-1981 Buick Century Rear Molded Door Weatherstrip Seals. Fits 4-Door Wagon Only, with RWD.
1978-1981 Buick Century Front Molded Door Weatherstrip Seals. For 4-Door Sedan and Wagon.

Designed for 4-door sedans and wagons, these front molded door seals replace OEM# 20008186/7 and come as a pair for both the right and left sides. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. They are free from accelerants and cheap fillers, which means they resist premature aging and cracking, providing a reliable barrier against water, wind, and noise. These seals are a perfect fit for a wide range of vehicles, including the 1978-1981 Buick Century, 1978-1983 Chevrolet Malibu, 1978-1988 Oldsmobile Cutlass models, and 1978-1981 Pontiac LeMans and Grand LeMans, among others. Backed by a 30-year warranty exclusive to SUPERsoft products, you can trust these seals to maintain their integrity for decades.

Features and Benefits
  • Provides a tight seal to block water, wind, and noise.
  • Made with premium materials for long-lasting durability.
  • Easy to install for a precise fit on your vehicle.

$190.49
• SALE $152.95
Select Color/Material Options  
1978-1981 Buick Century Front Molded Door Weatherstrip Seals. For 4-Door Sedan and Wagon.
1978-1981 Buick Century Rear Molded Door Weatherstrip Seals.

For 4-door sedans (except Ciera), these rear molded door seals are designed to replace OEM# 20008190/1 and come as a pair for both the right and left sides. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. They are free from accelerants and cheap fillers, which means they resist premature aging and cracking, providing a reliable barrier against water, wind, and noise. These seals are compatible with a wide range of vehicles, including 1978-1981 Buick Century, 1978-1983 Chevrolet Malibu, 1978-1987 Oldsmobile Cutlass models, and 1978-1986 Pontiac Grand LeMans and LeMans, among others. Installation is straightforward, as the seals are molded to fit perfectly into the rear door frames, restoring the original factory look and function. Backed by a 30-year warranty from SUPERsoft, you can trust these seals to maintain their quality and performance for decades.

Features and Benefits
  • Provides a tight seal to block water, wind, and noise.
  • Made with durable, long-lasting materials for extended use.
  • Easy to install with a precise molded fit for 4-door sedans.

$190.49
• SALE $152.95
Select Color/Material Options  
1978-1981 Buick Century Rear Molded Door Weatherstrip Seals.
1955-1956 Buick Century Molded Door Weatherstrip Seals with Molded Ends at Lock Pillar.

For late 1955-1956 2-door hardtops and convertibles, these molded door seals are designed to fit perfectly, replacing OEM #4647504/5. Crafted with molded ends at the lock pillar, they feature steel cores for durability and come with pre-installed metal and plastic clips for easy installation. These glue-on seals ensure a snug fit, effectively keeping out water, wind, and noise while enhancing the overall comfort of your ride. Compatible with 1955-1956 Buick Century, Roadmaster, Special, Super, and 1955-1956 Oldsmobile 88, 98, and Starfire models, these seals are made by Metro, known for producing parts that are 30% softer and more durable than competitors. Unlike other brands, Metro avoids using accelerants or cheap fillers, ensuring long-lasting performance without premature aging or failure. Backed by a 30-year warranty, these seals offer peace of mind and are a reliable choice for restoring your classic car’s doors to their original glory.

Features and Benefits
  • Keeps water, wind, and noise out for a quieter ride.
  • Pre-installed clips make installation quick and hassle-free.
  • Steel cores provide strength and long-term durability.

$209.99
• SALE $167.95
Select Color/Material Options  
1955-1956 Buick Century Molded Door Weatherstrip Seals with Molded Ends at Lock Pillar.

(113 Total Products)