BYD Destroyer 05 Rear Bumper Beam Assembly (Rear Crash Beam)

Product Specification

This product is professionally designed for BYD’s popular Ocean Series model—the BYD Destroyer 05, serving as a core structural component in the passive safety system that absorbs and disperses rear-end collision energy.

As a professional manufacturing factory specializing in automotive body structural parts and chassis components, our rear bumper beam assembly strictly follows OE specifications, dedicated to providing the global aftermarket with high-strength, high-precision replacement solutions.

The rear bumper beam assembly is the first line of defense in rear-end collision protection—mounted inside the rear bumper—responsible for transferring rear-end collision energy to the vehicle longitudinal beams, effectively protecting the passenger cabin structure and critical rear components (such as the charger). Its strength and structural design directly relate to vehicle rear-end collision safety performance.

Compatible with all BYD Destroyer 05 models (including 2022-2025, 55KM/120KM range versions, Champion Edition, and Glory Edition). According to actual vehicle teardown data, the Destroyer 05 rear bumper beam features a single-layer stamped steel structure, with a thickness of 0.99mm, width of approximately 109cm, covering approximately 60.89% of the vehicle rear width .

• The rear bumper beam features a single-layer stamped steel structure with a thickness of 0.99mm, width of 109cm, and rear coverage rate of 60.89% .

• No independent crash box design**—the beam is directly connected to the rear panel without buffer measures . Therefore, in low-speed collisions, beam deformation may directly transfer to the rear panel.

• Due to the lack of a crash box structure, the rear bumper beam is mounted relatively inward—the trunk lid protrudes outward, which is less favorable for collision protection .

  Installation Instructions

  Important Safety Note:
  The rear bumper beam assembly is a passive safety component—replacement involves disassembly/reassembly of the rear bumper and body structural parts. After replacement, all bolts must be tightened to OEM standard torque; otherwise, the reliability of energy transfer during collision may be affected. Professional body repair technician operation recommended.

  Tools Required:

  • Lift or jack with safety stands

  • Socket wrench / Impact wrench

  • Torque wrench

  •  Plastic clip removal tool

  Installation Steps (General Reference):

  1. Remove Rear Bumper: Remove rear bumper cover assembly to expose the bumper beam mounting location

  2. Disconnect Sensor Harness: If required, disconnect rear radar or sensor harness connectors

  3. Remove Old Beam: Remove mounting bolts at the beam-to-rear-panel connection

  4. Remove Old Assembly: Remove the old rear bumper beam assembly

  5. Compare & Confirm: Verify new part matches old in length, mounting hole locations, and structure

  6. Install New Assembly: Position new bumper beam assembly, pre-tighten bolts

  7. Torque to Specification: Use torque wrench to tighten all mounting bolts to OEM standard torque

  8. Reinstall Rear Bumper: Reinstall rear bumper cover assembly, reconnect sensor harness

  【Professional Tips】:

  • Because the Destroyer 05 rear bumper beam has no independent crash box, mounting bolts connect directly to the rear panel —torque must strictly follow OEM standards to avoid over-tightening damage to the panel.

  • Recommended to check trunk lid-to-body gaps for consistency after replacement to ensure no rear body structure misalignment.

  • If the vehicle is equipped with parking sensors or a rearview camera, confirm proper sensor function after installation.