Hood-to-cowl replacement seal HS 3110 78 provides a durable, OEM-style barrier between the hood and cowl to prevent water, dirt and road debris from entering the cowl area. Made from weather-resistant EPDM rubber for long-lasting compression and UV resistance, this seal restores proper sealing and helps reduce wind noise and moisture-related corrosion in the engine bay and firewall. Designed as a direct-fit restoration part, it improves reliability and maintains correct hood closure while offering an easy, press-in installation.
Features:
- Constructed from weather-resistant EPDM rubber for long service life.
- Seals the gap between hood and cowl to prevent water, dirt and debris intrusion.
- Reduces wind noise and helps prevent moisture-related corrosion to cowl/firewall areas.
- OEM-style profile for accurate fit and correct hood alignment.
- Easy to install — press-in application with optional adhesive for added hold.
- Ideal for restoration or replacement projects to regain original sealing performance.
Installation / Application:
- Difficulty: 2/5
- Estimated time: 20-45 minutes
Instructions:
- Open the hood and support it securely.
- Carefully remove the old seal: use a trim tool or flat screwdriver to pry it out of the channel, taking care not to damage the painted surfaces.
- Clean the mounting channel thoroughly with a rag and solvent to remove old adhesive, dirt, and oils. Allow to dry.
- Test-fit the new seal along the cowl to confirm orientation and length. Trim excess if necessary.
- If using adhesive, apply a thin bead of automotive-grade adhesive to the channel per the adhesive manufacturer's instructions.
- Starting at one end, press the seal into the channel, working along the length and ensuring the seal seats fully into the flange. Use a rubber mallet or the palm of your hand to evenly seat the seal if needed.
- Close the hood slowly to verify proper clearance and alignment. Re-open and make minor adjustments if any interference is observed.
- Allow adhesive to cure as recommended before exposing the vehicle to moisture (if adhesive was used).
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 |
Fitment Notes |
| Dodge |
Ramcharger |
1978 - 1980 |
Sport Utility |
| Plymouth |
Trailduster |
1978 - 1980 |
Sport Utility |
