Product Overview

The LIPPERT COMPONENTS Ramp Door Spring - Medium Duty, part number 133633, is a replacement spring designed to support the opening and closing operation of compatible trailer ramp doors. It helps restore proper ramp-door balance and reduces the effort required to lift and lower the door during loading and unloading.

Built for medium-duty trailer applications, this component is a practical replacement solution for worn, damaged, or fatigued ramp door springs. Confirm the original spring specifications and trailer compatibility before ordering.

Key Features

• Manufacturer: LIPPERT COMPONENTS
• Part number: 133633
• Application: Trailer ramp door spring replacement
• Medium-duty design for compatible enclosed trailers and cargo trailers
• Supports smoother ramp door operation and improved load access
• Suitable for repair, maintenance, and replacement installations

Benefits

• Helps restore the intended lift assistance of a ramp door.
• Reduces operator effort when opening and closing the ramp.
• Supports safer, more controlled loading and unloading procedures.
• Can help minimize downtime by replacing a fatigued or failed spring.
• Provides a manufacturer-identified replacement option for compatible Lippert-equipped trailer systems.
• Useful for service departments, trailer dealers, fleet operators, and independent repair facilities.

Common Applications

• Enclosed cargo trailers with rear ramp doors
• Utility trailers equipped with spring-assisted loading ramps
• Trailer ramp door repair and refurbishment projects
• Routine fleet and rental-trailer maintenance
• Replacement of damaged, worn, or weakened medium-duty ramp door springs

Application and fitment can vary by trailer design, ramp-door size, spring configuration, and load rating. Compare the existing spring and verify the trailer manufacturers specifications before installation.

Product Dimensions

Specific packaged and installed dimensions for LIPPERT COMPONENTS part 133633 should be confirmed against the current manufacturer or supplier specification. Spring dimensions, mounting configuration, and operating capacity are critical to proper fit and safe performance.

• Part-specific dimensions: Verify before purchase
• Spring type and configuration: Confirm against the original component
• Load rating: Use only within the manufacturer-approved application

Product Contents

• One LIPPERT COMPONENTS medium-duty ramp door spring, part number 133633

Mounting hardware, brackets, cables, and installation tools are not assumed to be included unless specifically stated by the seller or manufacturer. Ramp door spring installation involves stored mechanical energy and should be performed by a qualified technician using appropriate safety procedures.