04081-04512 0408104512 High Quality Engine Filters BR100JG-2 D40A-5

1. Quick Details of  seal 04081-04512 :

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5. FAQ

Q: What is the main function of this part?
A: Its primary role is to prevent critical bolts and fasteners from loosening due to engine and powertrain vibration. It acts as a mechanical lock, ensuring components like transmission covers and axle flanges stay securely fastened.

Q: How is this lock plate different from a traditional fluid-sealing gasket?
A: Unlike fiber gaskets that seal fluids, this is a mechanical locking gasket. It does not prevent leaks; instead, it physically locks fasteners in place to maintain the structural integrity of the assembly.

Q: Where is this lock plate installed?
A: It is installed under bolt heads in high-vibration powertrain components, such as transmission case covers, final drive housings, or axle flanges. The bolt passes through the plate’s hole, and the tab is bent over the bolt’s flat sides after tightening.

Q: What happens if this lock plate is not used or installed incorrectly?
A: Without the lock plate, bolts can vibrate loose over time, leading to component failure, oil leaks, or catastrophic damage to the powertrain. Improperly bent tabs will fail to lock, offering no protection against loosening.

Q: Can this lock plate be reused after disassembly?
A: No, reusing it is not recommended. Once the tab is bent, the metal loses its spring tension and cannot provide reliable locking again. It must be replaced with a new one during reassembly.

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