Precision Glass Run Channel, Left Hand GRL 3120 02 is a left-side window run channel engineered to guide and seal the door glass for smooth operation. It prevents wind noise, water intrusion, and glass vibration while maintaining correct alignment. Constructed for long-term durability, this channel is ideal for restoring weather-tight performance and reliable window function on compatible vehicles. Easy to fit with common hand tools, it provides a direct replacement solution for worn or damaged channels during restoration or maintenance projects.
Features:
- Left-hand glass run channel for LH window applications.
- Durable rubber and metal composite construction for long-lasting performance.
- Guides and seals the door glass to reduce vibration and wind noise.
- Helps prevent water intrusion and trim damage.
- Direct replacement for restoration or repair of worn channels.
- Simple installation with common automotive tools.
- Improves window alignment and repeatable up/down operation.
Installation / Application:
- Difficulty: 3/5
- Estimated time: 45-90 minutes
Instructions:
- Park vehicle on a level surface, disconnect negative battery terminal if required for airbag-equipped doors.
- Carefully remove the interior door panel and any trim pieces to expose the inner door shell and window mechanism.
- Peel back the vapor barrier or moisture seal to access the glass run channel mounting area.
- Lower or raise the window as needed to free the glass from the old channel; support the glass with tape if necessary.
- Remove fasteners, clips, or adhesive securing the old run channel and pull the old channel out of the track.
- Clean the channel mounting area, removing old adhesive, debris, and rust with a rag and appropriate cleaner.
- Apply a light coating of silicone spray or rubber lubricant inside the new channel to ease installation and reduce initial friction.
- Insert the new left-hand glass run channel into the door, aligning top and bottom ends and securing any clips or fasteners provided; trim excess if required.
- Test window operation slowly to confirm smooth travel and proper sealing, then reinstall the vapor barrier, door panel, and trim. Verify final fit and check for wind noise or water 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 |
| Dodge |
Ram 1500 |
2002 - 2008 |
| Dodge |
Ram 2500 |
2003 - 2008 |
| Dodge |
Ram 3500 |
2003 - 2008 |
