Honda 100A/70A Main Fuse Block 38231-SDA-A01

Honda 100A/70A Main Fuse Block – 38231-SDA-A01

Protect your vehicle’s electrical system with the Honda 100A/70A Main Fuse Block (part number 38231-SDA-A01). This OEM main fuse block is responsible for safeguarding the highest-demand electrical circuits in your Honda or Acura, including the charging system, ignition components, and interior power distribution. Whether you're repairing electrical issues or refreshing an aging system, replacing the main fuse block helps ensure your vehicle operates safely and consistently.

A main fuse block acts as the primary protection point for major electrical pathways. If a high-amperage circuit overloads, the fuse block prevents severe electrical damage by interrupting the current before it reaches critical components. Over time, heat, corrosion, and vibration can weaken the fuse block, leading to symptoms such as intermittent electrical loss, dim lights, charging failure, or no-start conditions. Installing a new OEM 100A/70A main fuse block restores stable power delivery and prevents unpredictable electrical problems.

This main fuse block fits the 2004–2008 Acura TSX, 2003–2007 Honda Accord (K24 & V6), 2006–2011 Honda Civic Si, 2006–2011 Honda Civic Non-Si, and the 2007–2011 Honda CR-V. Made to precise Honda factory specifications, this fuse block ensures perfect fitment, dependable current protection, and long-lasting reliability. For electrical troubleshooting, maintenance, or OEM restoration, this is the correct main fuse block for your vehicle.

Key Features

• OEM Honda part number 38231-SDA-A01 for guaranteed fitment
• Provides 100A and 70A high-amperage circuit protection
• Safeguards alternator output, ignition circuits, and interior electrical systems
• Restores proper power distribution and electrical stability
• Constructed from factory-grade materials for durability and heat resistance
• Ideal replacement for damaged or corroded main fuse blocks
• Direct installation in the under-hood fuse and relay box

Common Signs of a Failing Main Fuse Block

• Intermittent or complete loss of electrical power
• Dimming or flickering headlights and interior lights
• Alternator or charging system issues
• Engine stalling or no-start conditions
• Visible corrosion, melted plastic, or heat damage

Compatible Vehicles

• 2004–2008 Acura TSX
• 2003–2007 Honda Accord (K24 & V6)
• 2006–2011 Honda Civic Si
• 2006–2011 Honda Civic Non-Si
• 2007–2011 Honda CR-V