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

Stop leaks, drafts, and road noise in your Oldsmobile Delta 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 Delta 88—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our Oldsmobile Delta 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 Delta 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 Delta 88.

1971-1973 Oldsmobile Delta 88 Door Lock-Pillar Weatherstrip Seal.

Designed for 2-door hardtops, coupes, and convertibles from 1971-1973 GM B-, C-, and E-body models, this re-issue door lock-pillar seal is a perfect fit for vehicles like the Buick Centurion, Cadillac DeVille, Chevrolet Caprice, and more. Replacing OEM# 9640451/2, this pair (R&L) has been completely re-engineered with new cores and molds to ensure a precise fit and long-lasting performance. Crafted with concours-quality details, these seals are designed to prevent water, dust, and air leaks, keeping your vehicle’s interior protected and quiet. Installation is straightforward, as the seals are tailored to fit snugly into the lock-pillar area, restoring the original look and functionality of your classic car. Backed by Metro’s 30-year Platinum Warranty, you can trust in the durability and quality of this product for decades to come.

Features and Benefits
  • Redesigned with new molds for a precise fit.
  • Protects against water, dust, and air leaks.
  • Concours-quality details enhance appearance.

$119.49
• SALE $95.95
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1971-1973 Oldsmobile Delta 88 Door Lock-Pillar Weatherstrip Seal.
1971-1975 Oldsmobile Delta 88 Reissue. Header Weatherstrip Seal.

For convertible models of the 1971-1975 GM B-body and 1971-1976 GM E-body, this header seal measures 48-1/2 inches long and replaces OEM part #9833656. Crafted with precision using all-new 2015 retooled molds, it ensures an improved fit and reliable function. Made from soft yet durable EPDM sponge rubber with galvanized steel cores, this seal is designed to provide a snug, weatherproof barrier, protecting your vehicle's interior from water penetration and preventing costly repairs. Its high-quality construction guarantees durability and a clean, professional look once installed. Fitment includes classic models like the Buick Centurion, Cadillac Eldorado, Chevrolet Caprice, and more from 1971 to 1976. Backed by a 30-year warranty from SuperSoft, this part offers long-term peace of mind.

Features and Benefits
  • Protects against water damage, preserving your car's interior.
  • Made with durable EPDM rubber for long-lasting performance.
  • Galvanized steel cores ensure a secure and reliable fit.

$120.99
• SALE $96.95
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1971-1975 Oldsmobile Delta 88 Reissue. Header Weatherstrip Seal.
1971-1975 Oldsmobile Delta 88 Windshield Pillar Post Weatherstrip Seals for Convertibles. 26" Long.

For convertible models, these windshield pillar post seals measure 26 inches long and come as a pair, designed to fit seamlessly on 1971-1976 Buick Centurion, Buick LeSabre, Cadillac Eldorado, Chevrolet Impala, Chevrolet Caprice, Oldsmobile Delta 88, Pontiac Catalina, and Pontiac Grandville cars. Crafted by SUPERsoft, these seals are sunlight and UV-resistant, ensuring long-lasting durability even under harsh conditions. Their smooth, flawless surface is free of exposed cells, providing a clean and professional finish that enhances the overall look of your classic car. These seals are designed to prevent water and air leaks around the windshield pillars, keeping your interior protected and quiet. Backed by a 30-year warranty from SUPERsoft, you can trust in their quality and performance for decades to come.

Features and Benefits
  • Protects against water and air leaks for a quieter ride.
  • UV-resistant material ensures long-lasting durability.
  • Smooth, flawless surface enhances your car's appearance.

$124.99
• SALE $99.95
Select Color/Material Options  
1971-1975 Oldsmobile Delta 88 Windshield Pillar Post Weatherstrip Seals for Convertibles. 26" Long.
1966-1970 Oldsmobile Delta 88 Top Bow to Header Weatherstrip Seal (Fits Late '66-'70 GM "B" Body.

For late '66-'70 GM "B" body and '65-'70 GM "C" body cars, this top bow to header seal measures 56-1/2" long and is crafted with a smooth, skin-covered sponge, featuring a durable steel core and molded ends for a precise fit, just like the original. Designed to protect your vehicle's interior from water penetration, this seal eliminates the risk of costly and time-consuming repairs caused by leaks. It fits a wide range of classic models, including the 1965-1970 Buick Electra, Cadillac DeVille, Chevrolet Impala, Oldsmobile 98, Pontiac Bonneville, and more. Made with the finest materials and expert craftsmanship, this part ensures a snug and secure installation, enhancing the overall appearance and functionality of your vehicle. Backed by a 30-year warranty from SuperSoft, you can trust this seal to provide long-lasting protection and performance.

Features and Benefits
  • Protects interiors from water damage.
  • Made with premium materials for durability.
  • Fits a wide range of classic GM models.

$127.49
• SALE $101.95
Select Color/Material Options  
1966-1970 Oldsmobile Delta 88 Top Bow to Header Weatherstrip Seal (Fits Late '66-'70 GM "B" Body.
1969-1970 Oldsmobile Delta 88 Windshield Pillar Post Weatherstrip Seals for Convertibles.

For convertible models, these windshield pillar post seals measure 25 inches long and come as a two-piece pair, designed to fit seamlessly on 1969-1970 Buick Electra, LeSabre, Wildcat, Cadillac DeVille, Chevrolet Impala, Oldsmobile 98, Delta 88, Pontiac Bonneville, and Catalina cars. Crafted by SUPERsoft, these seals are sunlight and UV-resistant, ensuring long-lasting durability and protection against harsh weather conditions. The smooth, flawless surface is free of exposed cells, providing a clean, professional finish that enhances the look of your classic car. These seals are designed to install along the windshield pillars, creating a tight, weatherproof barrier that keeps out wind, rain, and debris, ensuring a quieter and more comfortable ride. Backed by a 30-year warranty, SUPERsoft guarantees quality and reliability for decades to come.

Features and Benefits
  • Protects against wind, rain, and debris for a quieter ride.
  • UV-resistant material ensures long-lasting durability.
  • Smooth, flawless surface enhances your car's appearance.
  • Easy installation for a secure, weatherproof fit.

$128.99
• SALE $102.95
Select Color/Material Options  
1969-1970 Oldsmobile Delta 88 Windshield Pillar Post Weatherstrip Seals for Convertibles.

(95 Total Products)