Our team designs and produces specialized fabricated door and window assemblies for heavy trucks

Built specifically for the heavy doors and windows of a semi-truck, our specialized fabricated door and window assemblies include window regulators, electrical components, window glass, hardware, and manual cranks.

Our flagship products are window regulators for Class 6, 7, and 8 trucks. They are the product we first began producing in 1946. Since then we have expanded our abilities to be capable of design, production, assembly, and delivery for inner door modules of all kinds. In addition, we offer in-house performance-testing on every component, module, and assembly we manufacture.

Muncy Corporation is known for the work we do and has been chosen by more than 200 global customers.

Cable Drive Regulators

Slimmer and less bulky than it’s predecessor, it’s our top-of-the-line OEM component

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Door Assemblies & Modules

Incorporating both manual and robotic assembly, our team will put together door assemblies and modules to complete your project

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Electrical Components

Our OEM line-up includes electrical components inside door modules

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Sector Gear Regulators

Our sector gear regulators are part of our traditional OEM operation

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Window Cranks

We also offer replacement window cranks for a variety of applications

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Window Glass Hardware

Complete your door module with our window glass hardware

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