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Peterbilt All-Makes Glass-W/S Split | R44-6018-2
Brand:
Paccar All-Makes
SKU:
R44-6018-2
Price:
$276.99
Peterbilt All-Makes Window-Lower Sleeper Side | U44-1001
Brand:
Paccar All-Makes
SKU:
U44-1001
Price:
$465.42
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Truck Glass & Windshield Parts For Peterbilt Trucks
Cab glass on a Peterbilt truck takes a beating from road debris, temperature extremes, and the vibration of heavy-duty operation. A cracked or improperly sealed windshield is not only a visibility hazard — it can also compromise the structural integrity of the cab in a rollover and lead to a DOT out-of-service violation if the crack falls within the driver's critical viewing area. We carry replacement glass, windshield seals, and related components to keep your Peterbilt cab watertight and compliant.
Frequently asked questions about truck glass
When is a cracked windshield a DOT violation on a commercial truck?
Under FMCSA 49 CFR 393.60, a windshield crack is a violation if it is in the area swept by the driver's wiper blades and obstructs the driver's clear view of the road. Specifically, a crack, discoloration, or damaged area greater than 3/4" in diameter — or a crack intersecting another crack — within the driver's critical viewing area is considered a defect. During a roadside inspection, a windshield in violation can result in an out-of-service order. Chips and cracks should be evaluated and repaired or replaced before reaching this threshold.
What are the signs that a Peterbilt windshield seal needs replacement?
A failing windshield seal typically presents as water leaking into the cab during rain, wind noise at highway speeds that wasn't there previously, or visible deterioration and cracking of the rubber seal around the glass perimeter. Moisture intrusion from a failed windshield seal can damage dash components, promote mold growth in the headliner, and accelerate corrosion of the cab structure around the windshield opening. Resealing a windshield is significantly less expensive than repairing water-damaged interior components.
Can I replace a Peterbilt side window or door glass myself?
Side glass and vent window replacement on Peterbilt trucks is generally more straightforward than windshield replacement, and many experienced owner-operators handle it themselves. The key steps are removing the window regulator or frame hardware, carefully extracting the old glass and seal, cleaning the frame channel thoroughly, and installing the new glass with a correctly sized seal. Windshield replacement, by contrast, involves adhesive bonding and is generally better left to a professional glass shop to ensure a watertight, structurally sound installation.