Precision Door Glass 4438 T CLN is a tempered, clear replacement door window engineered to restore visibility, weather protection, and safety to a vehicle's door assembly. Designed as a left- or right-hand drop-in panel, the glass meets tempered safety standards for impact resistance and shatter performance. It provides reliable dimensional accuracy for smooth operation with existing regulators and channels, and offers long-lasting clarity to support restoration, maintenance, or repair projects.
Features:
- Tempered clear glass designed as a left- or right-hand door panel for easy replacement.
- Meets safety-tempered standards for improved impact resistance and shatter performance.
- Precision-cut dimensions for smooth operation with existing window regulators and channels.
- Clear finish preserves visibility and resists optical distortion.
- Durable glass resists scratches and environmental wear for long service life.
- Ideal for vehicle restoration, repair, or maintenance as a direct replacement component.
- Sold as a single panel; appropriate adhesives or clips may be required depending on vehicle.
Installation / Application:
- Difficulty: 3/5
- Estimated time: 30-60 minutes
Instructions:
- Park vehicle on level ground, disconnect the negative battery terminal if working near power windows.
- Remove door trim panel by prying out trim clips and removing screws; carefully set panel aside and disconnect any electrical connectors.
- Peel back the moisture barrier to expose the inner door cavity and window regulator assembly.
- If removing broken glass, carefully clear any fragments while wearing gloves and eye protection.
- Lower or position the window regulator to access mounting fasteners; support the old glass or new panel with suction cups or a helper.
- Loosen and remove the fasteners securing the old glass to the regulator, then carefully lift the glass out through the window opening.
- Clean the window channels and regulator contact points; remove debris and inspect seals or clips for damage and replace as needed.
- Insert the new tempered glass into the door opening at the same angle as removal, aligning it into the upper channel and then into the regulator mount.
- Secure the glass to the regulator with the original fasteners or provided hardware; tighten to vehicle specifications and verify smooth up/down movement.
- Reinstall the moisture barrier, reconnect any electrical connectors, and reinstall the door trim panel.
- Test window operation several times to ensure proper alignment, sealing, and smooth movement. Make final adjustments if necessary.
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 |
C10 Panel |
1964 - 1966 |
| Chevrolet |
C10 Pickup |
1964 - 1966 |
| Chevrolet |
C20 Pickup |
1964 - 1966 |
| Chevrolet |
C30 Pickup |
1964 - 1966 |
| Chevrolet |
C50 |
1964 - 1966 |
| Chevrolet |
K10 Pickup |
1964 - 1966 |
| Chevrolet |
K20 Pickup |
1964 - 1966 |
| Chevrolet |
Suburban |
1964 - 1966 |
| GMC |
1000 Series |
1964 - 1965 |
| GMC |
1000 |
1966 |
| GMC |
1500 Series |
1964 - 1965 |
| GMC |
1500 |
1966 |
| GMC |
2500 Series |
1964 - 1965 |
| GMC |
2500 |
1966 |
| GMC |
3000 |
1964 - 1966 |
| GMC |
3500 |
1964 - 1966 |
| GMC |
K1000 Pickup |
1966 |
| GMC |
K1000 |
1966 |
| GMC |
K15/K1500 Pickup |
1966 |
| GMC |
Suburban |
1964 - 1966 |
