The Precision Door Weatherstrip Seal DWB 3121 02 is a left- or right-side door seal designed to restore proper sealing at the door perimeter. It prevents water intrusion, reduces wind noise and dust ingress, and helps minimize vibration and rattles for a tighter, quieter cabin. Constructed from durable, weather-resistant EPDM rubber with an integrated retention channel, this seal is built for long-term performance and is ideal for restoration or replacement of worn factory weatherstripping. Confirm fit using the part number DWB 3121 02 for your vehicle before purchase.
Features:
- Durable EPDM rubber construction resists UV, ozone and temperature extremes.
- Provides water, dust and wind-noise protection while reducing door vibration.
- Fits left or right side door applications (confirm vehicle fitment by part number DWB 3121 02).
- Integrated retention channel for secure, factory-like fit and easy seating.
- Easy replacement for worn or damaged OEM weatherstripping—restoration-ready.
- Trim-to-fit design allows installation on a variety of door styles.
Installation / Application:
- Difficulty: 2/5
- Estimated time: 20-45 minutes
Instructions:
- Open the door and carefully remove the old weatherstrip by pulling it from the door channel; use a plastic trim tool or wrapped flat-blade screwdriver to help pry out any retained sections.
- Thoroughly clean the channel and mating surface using rubbing alcohol or automotive cleaner to remove old adhesive, dirt, and debris; allow to dry completely.
- Dry-fit the new seal along the door perimeter to confirm length and orientation (left or right). Trim excess length with scissors or a utility knife if necessary, leaving a small overlap at the ends if recommended by your vehicle.
- If the original seal was adhesive-mounted, apply a thin bead of weatherstrip adhesive to the channel or back of the new seal per adhesive instructions. Many seals are push-fit and do not require adhesive—use adhesive only if needed for your application.
- Starting at the top hinge area, align the seal’s retention channel with the door flange and press firmly into place, working around the door. Use short, even strokes to fully seat the seal in the retention groove.
- Use masking tape to hold the seal in position if adhesive was used and allow the recommended cure time before closing the door.
- Close the door and check for even compression along the seal; make any small adjustments to alignment or trim as needed. Re-check door operation and weather tightness after 24 hours.
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 |
| Dodge |
Ram 1500 |
2002 - 2008 |
| Dodge |
Ram 2500 |
2003 - 2009 |
| Dodge |
Ram 3500 |
2003 - 2010 |
