The Precision Windshield Weatherstrip Seal WBL 330 is a non-grooved windshield sealing profile designed to secure glass, prevent water intrusion, and reduce wind noise on vehicles that require a weatherstrip without a trim groove. Constructed from weather-resistant rubber compound, this seal provides dependable protection against moisture, UV degradation, and temperature cycling. Its OEM-style profile makes it ideal for restorations and replacement projects where a clean, durable seal and straightforward installation are required. Verify dimensions against your vehicle's windshield flange before purchase to ensure proper fit.
Features:
- EPDM rubber compound resists ozone, UV, and temperature extremes for long-lasting performance.
- Non-grooved profile fits windshields that do not use a trim groove or retainers.
- Secures windshield edge to prevent leaks, rattles, and wind noise.
- Easy to trim and seat for faster installation during restorations or replacements.
- OEM-style cross-section for authentic fit and appearance on classic and replacement glass.
- Ideal for restoration projects and direct replacement where a trim groove is not used.
Installation / Application:
- Difficulty: 3/5
- Estimated time: 30–90 minutes (excluding windshield removal/installation time)
Instructions:
- If windshield is installed, remove glass according to vehicle procedures (use suction cups and proper support).
- Remove the old weatherstrip and any adhesive residue from the windshield flange using isopropyl alcohol and a plastic scraper; ensure flange is clean and dry.
- Compare the new WBL 330 seal to the old part for length and profile; trim excess length if necessary with a utility knife.
- Dry-fit the seal over the flange and around the windshield opening to confirm orientation and fit before applying any adhesive.
- If your application uses butyl tape or adhesive, apply a continuous bead to the flange per adhesive manufacturer instructions.
- Lightly lubricate the inner bead of the weatherstrip with soapy water or silicone spray to ease seating.
- Starting at the top center of the windshield opening, press the seal onto the flange and work outward toward each corner, using a plastic trim tool or your thumbs to fully seat the profile.
- Use a rubber mallet gently against a block or the plastic trim tool to ensure the seal is uniformly seated without deformation.
- Trim any excess seal material at the end, then wipe away any excess lubricant and inspect the seal line for gaps or kinks.
- Reinstall the windshield (or retainers) per vehicle specifications and allow any adhesive to cure fully before driving; perform a water test to confirm leak-free installation.
About Precision Replacement Parts
Since 1986 Precision Replacement Parts has been a trusted name in the Automotive Glass Industry.
Our knowledge and experience in manufacturing millions of extruded and molded EPDM Rubber, PVC and HDPE based plastics, and various stamped and extruded metal products for the classic and late model industries has allowed Precision to expand our services into multiple product markets.
Along with our own USA based production facility, Precision also partners with 25 different manufactures worldwide with a reputation as a global leader supplying OEM and replacement products to a number of different industries. Our partnerships along with our own in-house manufacturing and fabrication capability gives Precision a unique position in helping to meet the expanding needs of customers everywhere, providing them with a sustained competitive advantage.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
| Ford |
F-100 |
1953 - 1955 |
| Ford |
F-250 |
1953 - 1955 |
| Ford |
F-350 |
1953 - 1955 |
