914Rubber Windshield and Rear Window installation Butyl Cord 8 mm x 15'

PMB Performance, with 20 years of Porsche 914 expertise, partners with 914Rubber as their top retailer, selling more 914Rubber SKUs than anyone. Our 8 mm x 15' butyl cord (Part #477898011A) ensures a watertight seal for your 914, 924, 928, 944, or 968 windshield and rear window. Here’s how to install it right.

Why 914Rubber Butyl Cord?

This 8 mm butyl cord delivers a factory-grade seal, staying pliable to resist leaks and vibration. Each 15' roll covers one rear window or half a windshield (two rolls needed). Its uniform diameter ensures even pressure, preventing glass stress.

Installation Guide

Tools

• 914Rubber 8 mm x 15' butyl cord (3 rolls per car)

• 914Rubber glass setting blocks (Part #91454190710)

• Isopropyl alcohol, lint-free cloth

• Plastic trim tools

• 914Rubber windshield trim clips (Part #91454192111)

Steps

1. Prep: Remove old glass, clean frame and glass with isopropyl alcohol. Check for rust; treat if needed.

2. Apply Cord: Press cord into frame channel, starting at bottom center. Overlap ends 1/2 inch. Don’t stretch.

3. Set Glass: Place two glass setting blocks at bottom. Lower glass evenly18, align, and press evenly into cord.

4. Secure Trim (Windshield): Install trim clips and snap on trim (Part #91454121310).

5. Cure: Let set 24 hours, then test for leaks.

Pro Tips

• Work in 60-80°F for best cord pliability.

• Take extra care at windshield corners to avoid twisting cord.

• Use 3M Black Super Weatherstrip Adhesive for a blackout effect.

Why PMB & 914Rubber?

Our 20-year 914Rubber partnership means unmatched expertise and inventory. Need help? Call 855-914GUYS or email [email protected].

Compatibility

• Porsche 914 (1970-76), 924 (1976-85), 928 (1978-95), 944 (1982-91), 968 (1992-95)

Specs

• Part: 477898011A

• Size: 8 mm x 15'

• Quantity: 3 rolls per car

• Material: Butyl rubber

Trust PMB Performance and 914Rubber for your Porsche restoration.