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JL Audio

JL Audio Maxi Fuse Distribution Block, 4-way (XD-FDBU-4) - 010-13484-00 (90462)

JL Audio Maxi Fuse Distribution Block, 4-way (XD-FDBU-4) - 010-13484-00 (90462)

Regular price $69.99 USD
Regular price Sale price $69.99 USD
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JL Audio XD-MFBW-MAXI-F Water-Resistant Master MAXI™ Fuse Block is a compact, marine-grade master fuse block designed to protect the main power cable feeding an amplifier or power distribution system. This version includes a MAXI™ blade fuse pre-installed, enabling immediate integration into automotive, marine, or powersports systems.

The block features JL’s OmniSert™ captured-wire receptacles that accept 8 AWG to 4 AWG power wire without additional sleeves. Forged and machined brass construction with marine-grade plating provides excellent current transfer and corrosion resistance. A high-temperature polycarbonate base and hinged cover add durability and water resistance for demanding outdoor environments.

Key Features

  • Master MAXI™ fuse block with pre-installed MAXI™ blade fuse
  • Designed for main power protection of high-current amplifier systems
  • Water-resistant hinged cover for marine & powersports environments
  • OmniSert™ wire receptacles accept 8–4 AWG power wire
  • Forged & machined brass construction with marine-grade plating
  • High-temp polycarbonate base and cover

Technical Specifications

Model XD-MFBW-MAXI-F
Garmin PN 010-13484-00
JL Legacy PN 90468
UPC 699440904629
Wire Compatibility 8 AWG – 4 AWG
Fuse Type MAXI™ blade (included)
Construction Forged & machined brass
Cover/Base High-temp polycarbonate, water-resistant
Approx. Shipping Weight ~1.0 lb

Ideal Applications

  • Main power protection for a single high-current amplifier
  • Marine and powersports installs needing water-resistant power components
  • Battery-side fuse protection for compact custom systems

What’s Included

  • JL Audio XD-MFBW-MAXI-F water-resistant master MAXI™ fuse block
  • Pre-installed MAXI™ blade fuse
  • Protective hinged cover
  • Hardware (as supplied by JL Audio)

Why Buy From MCOR Automotive

  • Authorized JL Audio dealer with extensive power & marine install experience
  • Guidance on fuse sizing, wiring, and layout for multi-amp systems
  • Post-sale support for basic installation and troubleshooting

Fitment & Installation Help

Need help confirming fitment or installation parts? Use our Fit Guide or contact us through the chat button before ordering.

Authorized Retailer & Warranty

MCOR Automotive is an authorized JL Audio / Garmin retailer. Products purchased from MCOR include applicable manufacturer warranty coverage when installed and used according to manufacturer guidelines.

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