Rear door vent weatherstrip

This rear door vent weatherstrip is designed to restore the proper seal on your classic 1940-1948 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac 4-door sedans. It's a direct replacement for factory part numbers 4099449, 4099450, 4128373, and 4128374, ensuring a snug fit that keeps out drafts and moisture.

Note: For complete sealing, you may need to order the division post weatherstrip or seal separately, depending on your vehicle make:

• Buick, Cadillac, Oldsmobile, Pontiac: order division post weatherstrip #70-0695-74 separately
• Chevrolet: order division post seal #70-0040-56 separately (no matching metal core post seal available)

Installation is straightforward—remove the old weatherstrip, clean the area, then press this new strip into place along the rear door vent frame. This helps maintain your vintage car’s interior comfort and preserves its originality.