XZ-MA4A Universal Mobile Mounting Kit
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Product Overview & Technical Description
The XZ-MA4A (also cross-referenced in some procurement systems as XT-MA4A) is the official
Universal XL-Mobile Mounting Kit manufactured by L3Harris Technologies. This professional-grade
installation hardware kit is engineered exclusively to secure L3Harris high-tier tactical mobile radios into
public safety vehicles, command vehicles, marine craft, or fixed desktop station environments. It provides
an exact, ruggedized fit for the XL-200M Multiband and XL-185M Single-band P25 converged land mobile
radios (LMR). As critical communication infrastructure, these radios require mounting hardware that
satisfies strict structural and safety standards. The XZ-MA4A kit ensures that the 5.0-pound radio chassis
remains rigidly locked in place under extreme field conditions.
Dual Installation Architecture
The defining characteristic of the XZ-MA4A universal mounting kit is its dual-configuration versatility. It
includes all necessary brackets, tracking slides, and heavy-duty hardware required to support both
front-mount and remote-mount vehicle configurations:
• Front-Mount Configuration: In a front-mount setup, the XL-CH control head unit is attached directly
to the front face of the XL-200M or XL-185M radio transceiver body. The integrated XZ-MA4A bracket
cradles the unified assembly, allowing it to be installed directly into center consoles, under-dash
brackets, or surface-mounted inside a vehicle cabin. This configuration is ideal for standard patrol
cars, SUVs, and utility vehicles where there is sufficient space within the vehicle's cockpit console.
• Remote-Mount Configuration: For vehicles with restricted console space, fire apparatus, or
specialized tactical command vehicles, a remote-mount layout is preferred. In this scenario, the heavy
transceiver body is mounted out of sight—typically in a trunk, electronic compartment, or behind a
seat—using the XZ-MA4A kit. The control head is separated and connected via an extended ethernet
cable, mounted closer to the operator using a separate control head bracket like the XZ-MA4C. The
universal kit accommodates this split arrangement by safely housing the main radio brick
independently.
Ruggedized Engineering & Environmental Compliance
Because the XL Onboard Series radios are deployed across demanding environments—including law
enforcement, fire service, military operations, and EMS—the XZ-MA4A kit is built to the same strict
environmental standards as the radios themselves. The assembly is constructed from heavy-gauge,
high-strength structural steel designed to absorb vibration and shock. It is treated with a
corrosion-resistant black powder coat finish to protect the assembly from moisture, humidity, and the
typical wear-and-tear of a vehicle interior.
When installed according to the L3Harris XL Series Mobile Radio Installation Manual, the mounting
hardware complies with MIL-STD-810G testing parameters. This ensures resistance to persistent vehicle
vibrations, shock from rough terrain, and rapid temperature shifts without warping or experiencing metal
fatigue.
Component Integration & Ecosystem
The XZ-MA4A kit serves as the structural anchor for a broader network of interconnected vehicle
accessories. A complete professional installation usually incorporates the universal kit alongside several
specific L3Harris part numbers:
• Control Interface: Integrates with the XZ-CP6A Control Unit (XL-CH), which provides the 3.3-inch
color LCD display and user keypad.
• Slide Rails: Often paired with the XZ-MA4D Mounting Rail Plate Kit to allow easier depth adjustment
and rapid radio slide-out servicing.
• Audio Upgrades: Connects with the XZ-LS6A External Mobile Speaker (15W audio output) to
ensure clear voice dispatch overrides vehicle sirens and ambient road noise.
• Console Integration: The pre-drilled bolt patterns on the bottom of the universal bracket align with
standard public safety console footprints, facilitating clean drop-in setups into third-party vehicle
equipment from manufacturers like Gamber-Johnson or Havis.
