Important Update on US Tariffs and Pricing [ DETAILS ]

855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE
Home / Weatherstrip / Body Weatherstrip / Door

Precision Beltline Molding and Glass Run Channel Kit, Left and Right Hand, 6 Piece Kit WFK 1121 73

Precision Beltline Molding and Glass Run Channel Kit, Left and Right Hand, 6 Piece Kit WFK 1121 73
Precision Beltline Molding and Glass Run Channel Kit, Left and Right Hand, 6 Piece Kit WFK 1121 73
$239.99 kt
NEWARRIVING SOONEstimated Ship Date 12/31/2025 (If Ordered Today)
Model: 3433628
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]
A complete left- and right-hand 6-piece beltline molding and glass run channel kit designed to restore proper window fit, sealing, and alignment on classic vehicles. This kit replaces worn or missing beltline trim and glass run channels to stop water intrusion, reduce wind noise, and ensure smooth window operation. Constructed from durable, weather-resistant materials with corrosion-resistant backing, the components provide long-term reliability and a factory-like appearance. Ideal for restoration or maintenance projects, the kit helps preserve vehicle value and simplifies installation for DIYers and professionals alike. Designed for select 1973 vehicles—confirm specific make and model fitment before purchase.
Features:
  • Fits select 1973 models — verify specific year, make, and model fitment prior to installation.
  • Complete 6-piece set includes left and right hand beltline moldings and glass run channels for both windows.
  • Made from weather-resistant rubber and corrosion-resistant backing for long-lasting seals and durability.
  • Restores proper window alignment, reduces wind noise, and prevents water leaks into the door cavity.
  • Direct-replacement design for restoration projects or to replace brittle, torn, or missing original pieces.
  • Straightforward installation with common hand tools — ideal for DIY restoration or professional fitting.
Installation / Application:
  • Difficulty: 2/5
  • Estimated time: 1–2 hours
Suggested Tools:
  • Trim removal tool or flat screwdriver (wrapped to protect finish)
  • Needle-nose pliers
  • Utility knife or razor blade
  • Isopropyl alcohol and clean rags
  • Weatherstrip adhesive (if required)
  • Rubber mallet or block of wood
Instructions:
  1. Lower the window glass (if applicable) and remove any interior door panels or trim necessary to access the beltline and channel area.
  2. Carefully remove the old beltline molding and glass run channel: use a trim tool or flat screwdriver to release clips, and a utility knife to cut away any bonded adhesive or deteriorated rubber.
  3. Clean the mounting surfaces thoroughly with isopropyl alcohol, removing old adhesive, dirt, and corrosion so the new parts seat flat.
  4. Dry-fit the new glass run channels and beltline moldings to confirm orientation (left/right) and trim length. Trim excess material if necessary with a utility knife.
  5. If instructed or required for your vehicle, apply a thin bead of weatherstrip adhesive to the mounting surface or channel edge.
  6. Insert the glass run channel into the beltline groove, aligning clips or mounting holes. Press firmly along the length and use a rubber mallet or block of wood to seat the molding evenly without deforming it.
  7. Reinstall any retained clips or fasteners, raise and lower the window to verify smooth operation and proper sealing, and make any minor adjustments.
  8. Reinstall door panels and trim, then test the window again for noise, alignment, and water infiltration (hose test recommended).
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 Pickup 1973 - 1974
Chevrolet C10 Suburban 1973 - 1986
Chevrolet C10 1975 - 1986
Chevrolet C20 Pickup 1973 - 1974
Chevrolet C20 Suburban 1974 - 1986
Chevrolet C20 1975 - 1986
Chevrolet C30 Pickup 1973 - 1974
Chevrolet C30 1975 - 1986
Chevrolet C50 1973 - 1990
Chevrolet K10 Pickup 1973 - 1974
Chevrolet K10 Suburban 1974 - 1986
Chevrolet K10 1975 - 1986
Chevrolet K20 Pickup 1973 - 1974
Chevrolet K20 Suburban 1973 - 1986
Chevrolet K20 1975 - 1986
Chevrolet K30 Pickup 1973 - 1974
Chevrolet K30 1977 - 1986
Chevrolet R10 Suburban 1987 - 1988
Chevrolet R10 1987
Chevrolet R1500 Suburban 1989 - 1991
Chevrolet R20 Suburban 1987 - 1988
Chevrolet R20 1987 - 1988
Chevrolet R2500 Suburban 1989 - 1991
Chevrolet R2500 1989
Chevrolet R30 1987 - 1988
Chevrolet R3500 1989 - 1991
Chevrolet V10 Suburban 1987 - 1988
Chevrolet V10 1987
Chevrolet V1500 Suburban 1989 - 1991
Chevrolet V20 Suburban 1987 - 1988
Chevrolet V20 1987
Chevrolet V2500 Suburban 1989 - 1991
Chevrolet V30 1987 - 1988
Chevrolet V3500 1989 - 1991
GMC C15 Suburban 1975 - 1978
GMC C15/C1500 Pickup 1973 - 1974
GMC C15/C1500 Suburban 1973 - 1974
GMC C1500 Suburban 1979 - 1986
GMC C1500 1979 - 1986
GMC C15 1975 - 1978
GMC C25 Suburban 1975 - 1978
GMC C25/C2500 Pickup 1973 - 1974
GMC C25/C2500 Suburban 1973 - 1974
GMC C2500 Suburban 1979 - 1986
GMC C2500 1979 - 1986
GMC C25 1975 - 1978
GMC C35/C3500 Pickup 1973 - 1974
GMC C3500 1979 - 1986
GMC C35 1975 - 1978
GMC C5000 1979 - 1990
GMC K15 Suburban 1975 - 1978
GMC K15/K1500 Pickup 1973 - 1974
GMC K15/K1500 Suburban 1973 - 1974
GMC K1500 Suburban 1979 - 1980
GMC K1500 1979 - 1986
GMC K15 1975 - 1978
GMC K25/K2500 Pickup 1973 - 1974
GMC K25/K2500 Suburban 1973 - 1974
GMC K2500 Suburban 1985 - 1986
GMC K2500 1979 - 1986
GMC K25 1975 - 1978
GMC K35/K3500 Pickup 1973 - 1974
GMC K35 1977 - 1978
GMC R2500 1987 - 1989
GMC R3500 1987 - 1991
GMC V3500 1987 - 1991

Specifications:

Part Type Door Window Belt Weatherstrip
Proposition 65 www.P65Warnings.ca.gov
Warranty Lifetime on Defects TX

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Precision Beltline Molding and Glass Run Channel Kit, Left and Right Hand, 6 Piece Kit WFK 1121 73:
Reason for Inquiry:

Related Products

Precision 2 Door Hardtop - Roof Rail Weatherstrip Seal, Left Hand RWL 1411 67
Precision 2 Door Hardtop - Roof Rail Weatherstrip Seal, Left Hand RWL 1411 67
Model: 3431712
Condition: NEW
$79.99 ea $51.72
35.3%
Chevy Weatherstrip, J-Shape, Upper Door Hinge, 1955-1957
Chevy Weatherstrip, J-Shape, Upper Door Hinge, 1955-1957
Model: 3432881
Condition: NEW
$63.99 pr
Precision 2 Door Hardtop - Roof Rail Weatherstrip Seal, Right Hand RWR 1411 67
Precision 2 Door Hardtop - Roof Rail Weatherstrip Seal, Right Hand RWR 1411 67
Model: 3431696
Condition: NEW
$80.99 ea $51.73
36.1%
Chevy Windshield Weatherstrip, For Cars With Stainless Moldings Around Windshield, 1955-1957
Chevy Windshield Weatherstrip, For Cars With Stainless Moldings Around Windshield, 1955-1957
Model: 3431020
Condition: NEW
$125.99 ea
Redline Restomotive® GM Door Frame Weatherstrip Clip Receiver, Plastic
Redline Restomotive® GM Door Frame Weatherstrip Clip Receiver, Plastic
Model: 3934109
Condition: NEW
$1.99 ea

Frequently bought together

Key Parts '73-'87 Door Mirror (Stainless Steel) 0850-557 U
Key Parts '73-'87 Door Mirror (Stainless Steel) 0850-557 U
Model: 3034677
Condition: NEW
$117.99 ea
Precision Door Weatherstrip Seal, Left or Right Hand DWB 1110 73
Precision Door Weatherstrip Seal, Left or Right Hand DWB 1110 73
Model: 3433127
Condition: NEW
$84.99 ea
Precision Hood To Cowl Seal CS 1110 73
Precision Hood To Cowl Seal CS 1110 73
Model: 3038108
Condition: NEW
$58.99 ea
Fairchild Industries Vent Window Seal, Left G4903
Fairchild Industries Vent Window Seal, Left G4903
Model: 3927969
Condition: NEW
$23.99 ea
Precision Beltline Molding Kit, Left and Right Hand, 4 Piece Kit WFK 1120 73
Precision Beltline Molding Kit, Left and Right Hand, 4 Piece Kit WFK 1120 73
Model: 3433631
Condition: NEW
$150.99 kt