A direct-fit rear window weatherstrip engineered to restore a factory-quality seal for applications that use the Lockstrip WCR 1129 system. The profile features an integrated trim groove to accept the corresponding lockstrip, providing a secure mechanical hold while sealing out water, dust, and wind noise. Constructed from durable, ozone- and UV-resistant elastomer, this weatherstrip maintains flexibility in extreme temperatures for long-term reliability. Ideal for restoration or replacement, it helps prevent interior water damage, reduces vibration and wind noise, and re-establishes proper glass alignment for a neat, finished appearance.
Features:
- Designed for rear window applications that use the Lockstrip WCR 1129 profile.
- Integrated trim groove accepts the lockstrip for a secure, mechanical hold.
- Made from UV- and ozone-resistant elastomer for long life and flexibility.
- Seals against water, dust, and wind noise to protect interior components.
- Helps restore OEM fit and alignment for clean appearance and reduced vibration.
- Compression-resistant design resists hardening and shrinkage over time.
- Simple trim-and-seat installation—no complex fabrication required.
Installation / Application:
- Difficulty: 2/5
- Estimated time: 30-60 minutes
Instructions:
- Carefully remove the interior trim panels and any retaining hardware to access the rear window flange and old weatherstrip.
- Remove the old weatherstrip and lockstrip. Use a trim tool and screwdriver to pry out the seal and cut away any stuck sections with a utility knife.
- Thoroughly clean the window flange, channel, and glass edge with rubbing alcohol or an appropriate solvent to remove adhesive, dirt, and old sealant.
- Dry the area completely and inspect the channel for rust or damage; repair any rough spots before installing the new seal.
- Test-fit the new weatherstrip into the channel to confirm orientation. The trim groove should align where the lockstrip will seat.
- Apply a thin film of soapy water or window lubricant to the weatherstrip bead and channel to ease installation.
- Seat the weatherstrip into the channel starting at one corner; work progressively around the window, pressing the seal fully into the flange bead. Use a plastic trim tool to avoid damage.
- Insert the lockstrip into the trim groove to mechanically secure the seal. Tap gently with a rubber mallet or block of wood as needed until fully seated.
- Trim any excess material at the ends with a utility knife for a neat finish. If required, apply a small amount of adhesive or seam sealer at the butt joint for added protection against leaks.
- Reinstall interior trim panels and hardware. Clean the glass and test for proper fit by checking for even compression and running a water test to confirm no 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 |
D100 |
1975 - 1989 |
| Dodge |
D150 |
1977 - 1993 |
| Dodge |
D200 |
1975 - 1980 |
| Dodge |
D250 |
1981 - 1993 |
| Dodge |
D300 |
1975 - 1980 |
| Dodge |
D350 |
1981 - 1993 |
| Dodge |
D400 |
1978 - 1981 |
| Dodge |
D450 |
1978 - 1981 |
| Dodge |
W100 |
1975 - 1989 |
| Dodge |
W150 |
1977 - 1993 |
| Dodge |
W200 |
1975 - 1980 |
| Dodge |
W250 |
1981 - 1993 |
| Dodge |
W300 |
1975 - 1980 |
| Dodge |
W350 |
1981 - 1993 |
