04312PSA305 HONDA STARTER BRUSH HOLDER

What is this part?

The Honda starter brush holder 04312PSA305 is a genuine OEM starter motor component designed to hold and position the carbon brushes against the commutator.

What does it do?

This OEM starter brush holder keeps the brushes correctly aligned and applies consistent spring pressure, ensuring reliable electrical contact between the brushes and the armature commutator. Proper contact is essential for efficient current transfer, starter torque, and consistent engine starting. A genuine Honda starter brush holder is manufactured to factory specifications for precise fit, insulation, heat resistance, and long-term durability.

When to replace

The Honda starter brush holder 04312PSA305 should be replaced if it is cracked, melted, warped, has worn or broken brush guides, weakened springs, or causes intermittent starter operation. A damaged brush holder can lead to slow cranking, starting failures, arcing, or uneven brush wear. Installing a genuine OEM brush holder restores stable electrical contact and starter performance.

Compatibility

The genuine Honda starter brush holder 04312PSA305 is compatible with selected Honda starter motors. Compatibility depends on starter model, voltage, brush configuration, and model year. Always verify the part number 04312PSA305 before purchase to ensure correct fitment.

Installation: DIY or service?

Installation of the genuine OEM Honda starter brush holder 04312PSA305 requires disassembly of the starter motor and correct brush installation. While experienced DIY users may perform the repair, professional installation is recommended to ensure proper assembly, electrical integrity, and reliable starting performance.