The Precision Vent Post Weatherstrip Seal (Left hand VPL 1110 73) is a direct-replacement vent post seal designed to restore proper sealing at the vent/window post. It prevents water intrusion, reduces wind noise, and protects interior trim and body metal from moisture-related damage. Molded from high-quality EPDM rubber for long-lasting flexibility and weather resistance, this left-hand seal provides an OEM-style fit and straightforward installation — ideal for restoration, maintenance, or routine replacement. Verify vehicle fitment before purchase to ensure compatibility with your model.
Features:
- Left-hand vent post weatherstrip seal — verify fitment for your vehicle before ordering.
- Molded EPDM rubber construction for flexibility and long-term weather resistance.
- Seals vent/window post to prevent water leaks, wind noise, and interior damage.
- OEM-style profile for accurate fit and alignment during restoration or replacement.
- Easy to install with basic tools; can be used with adhesive for a permanent seal.
- Helps prevent rust and trim deterioration by keeping moisture out of the body cavity.
Installation / Application:
- Difficulty: 2/5
- Estimated time: 15-30 minutes
Instructions:
- Remove the old seal: gently pry out the existing vent post seal using a plastic trim tool or flat-head screwdriver, taking care not to damage the post or surrounding trim.
- Clean the mounting surface: wipe the vent post and surrounding area with a rag and isopropyl alcohol to remove dirt, adhesive residue, and oils; allow to dry completely.
- Test-fit the new seal: position the new left-hand seal on the vent post to confirm alignment and correct orientation before adhesive application.
- Apply adhesive (if required): apply a thin bead of weatherstrip adhesive to the mounting channel or as recommended by the adhesive manufacturer. Some seals press-fit without adhesive — follow the part-specific guidance.
- Install the seal: align the seal and press it firmly into the channel along the full length of the post, ensuring the inward-facing lip seats against the window frame.
- Trim excess: if needed, trim any excess material with scissors or a utility knife for a neat fit.
- Allow adhesive to cure: if adhesive was used, follow the adhesive cure time before operating the window or exposing the area to moisture.
- Inspect the seal: check for gaps or areas not fully seated and press or re-seat as necessary. Re-check after a short road test to confirm no wind noise or leaks.
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 |
| Chevrolet |
Blazer |
1973 - 1974 |
| Chevrolet |
C10 Pickup |
1973 - 1974 |
| Chevrolet |
C10 Suburban |
1973 - 1980 |
| Chevrolet |
C10 |
1975 - 1980 |
| Chevrolet |
C20 Pickup |
1973 - 1974 |
| Chevrolet |
C20 Suburban |
1973 - 1980 |
| Chevrolet |
C20 |
1975 - 1980 |
| Chevrolet |
C30 Pickup |
1973 - 1974 |
| Chevrolet |
C30 |
1975 - 1980 |
| Chevrolet |
C50 |
1973 - 1980 |
| Chevrolet |
K10 Pickup |
1973 - 1974 |
| Chevrolet |
K10 Suburban |
1973 - 1980 |
| Chevrolet |
K10 |
1975 - 1980 |
| Chevrolet |
K20 Pickup |
1973 - 1974 |
| Chevrolet |
K20 Suburban |
1973 - 1980 |
| Chevrolet |
K20 |
1975 - 1980 |
| Chevrolet |
K30 Pickup |
1973 - 1974 |
| Chevrolet |
K30 |
1977 - 1980 |
| Chevrolet |
K5 Blazer |
1975 - 1980 |
| GMC |
C15 Suburban |
1975 - 1978 |
| GMC |
C15/C1500 Pickup |
1973 - 1974 |
| GMC |
C15/C1500 Suburban |
1973 - 1974 |
| GMC |
C1500 Suburban |
1979 - 1980 |
| GMC |
C1500 |
1979 - 1980 |
| GMC |
C15 |
1975 - 1978 |
| GMC |
C25 Suburban |
1975 - 1978 |
| GMC |
C25/C2500 Pickup |
1973 - 1974 |
| GMC |
C25/C2500 Suburban |
1973 - 1974 |
| GMC |
C2500 Suburban |
1979 - 1980 |
| GMC |
C2500 |
1979 - 1980 |
| GMC |
C25 |
1975 - 1978 |
| GMC |
C35/C3500 Pickup |
1973 - 1974 |
| GMC |
C3500 |
1979 - 1980 |
| GMC |
C35 |
1975 - 1978 |
| GMC |
C5000 |
1979 - 1980 |
| GMC |
Jimmy |
1973 - 1980 |
| GMC |
K15 Suburban |
1975 - 1978 |
| GMC |
K15/K1500 Pickup |
1973 - 1974 |
| GMC |
K15/K1500 Suburban |
1973 - 1974 |
| GMC |
K1500 Suburban |
1979 - 1980 |
| GMC |
K1500 |
1979 - 1980 |
| GMC |
K15 |
1975 - 1978 |
| GMC |
K25 Suburban |
1975 - 1978 |
| GMC |
K25/K2500 Pickup |
1973 - 1974 |
| GMC |
K25/K2500 Suburban |
1973 - 1974 |
| GMC |
K2500 Suburban |
1979 - 1980 |
| GMC |
K2500 |
1979 - 1980 |
| GMC |
K25 |
1975 - 1978 |
| GMC |
K35/K3500 Pickup |
1973 - 1974 |
| GMC |
K3500 |
1979 - 1980 |
| GMC |
K35 |
1977 - 1978 |