Description
Standard 10ft 14 AWG Mobile DC Power Cable
15 Amp DC power cable with in-line fuse protection for connecting 25-Watt Motorola mobile two-way radios directly to 12V vehicle batteries.
The Motorola HKN4137B (also cataloged as HKN4137) is an original equipment manufacturer (OEM) 10-foot mobile power adapter cable engineered to deliver steady 12V DC power from a vehicle's battery directly to Motorola 25-Watt mobile transceivers. Constructed with heavy-duty 14 AWG copper wire and rated for 15 Amps, this standard power cable ensures reliable current transfer while protecting sensitive radio circuitry from power surges and electrical spikes via an integrated in-line fuse assembly.
Designed for professional vehicular installations in commercial fleets, utility vehicles, and public safety units, the Motorola HKN4137B connects cleanly to the vehicle power supply and features a molded radio connector for a tight, vibration-resistant fit. Compatible with popular mid-power mobile transceivers including the Motorola CM200d, CM300d, XPR 2500, XPR 5350e, XPR 5550e, and TLK 150, this cable prevents voltage drop and alternator noise interference across DMR Association digital networks governed under FCC Licensing standards.
Key Features & Benefits
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10-Foot Cable Reach: Provides ample length for clean, organized cable routing from under-dash radio mounts to the engine battery compartment.
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14 AWG Copper Wire: Durable 14-gauge conductor delivers consistent 12V DC voltage for 25-Watt mobile transceivers.
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In-Line Surge Protection: Includes a heavy-duty inline fuse holder and fuse to safeguard radio microprocessors from vehicle electrical transients.
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Direct Battery Wiring: Connects directly to vehicle battery terminals to bypass noisy dashboard wiring and reduce electrical noise hum.
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Precision Molded Plug: Factory-molded radio power connector snaps firmly into mobile transceivers to prevent accidental power loss on rough terrain.
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Commercial Vehicle Grade: Rugged wire jacketing stands up to engine heat, oil exposure, abrasion, and cabin vibrations.
Specifications
| Attribute |
Details |
| Brand |
Motorola Solutions |
| Model/SKU |
HKN4137B / HKN4137 |
| Product Type |
Mobile Radio DC Power Adapter Cable |
| Cable Length |
10 Feet (3.05 Meters) |
| Wire Gauge |
14 AWG |
| Current Rating |
15 Amps |
| Voltage Rating |
12V DC |
| Power Compatibility |
25-Watt Mobile Transceivers |
| Protection |
Integrated In-Line Fuse Assembly |
Compatibility
Compatible Motorola MOTOTRBO, Commercial & WAVE Radios
Recommended Accessories
Compatible Mobile Mounting & Antenna Hardware
More Resources
Frequently Asked Questions
What is the maximum radio wattage supported by the Motorola HKN4137B power cable?
The Motorola HKN4137B is rated for 15 Amps on 14 AWG wire and is optimized for low and mid-power mobile two-way radios operating at 25 Watts or lower.
Does the Motorola HKN4137B include an in-line fuse?
Yes, the cable assembly comes equipped with an integrated in-line fuse holder to protect the radio against electrical surges and vehicle wiring shorts.
Can the HKN4137B be used with high-power 45W or 50W radios?
No. For high-power mobile transceivers (such as 45W or 50W models), you should use a heavy-duty 20 Amp power cable like the Motorola HKN4192C (10 AWG).
Why is direct battery connection recommended over a cigarette lighter plug?
Direct battery wiring provides a stable, unswitched 12V DC voltage source that minimizes electrical noise interference, alternator whine, and voltage drops during radio transmission.
Is the Motorola HKN4137B an authentic Motorola OEM part?
Yes, the Motorola HKN4137B is an authentic original equipment manufacturer power cable produced directly by Motorola Solutions.
Warranty
1-year manufacturer’s warranty.
