Will this power a fuel pump

It should, it is rated at 12vdc plus and at 20 amps. I assume you are talking an automotive fuel pump.

Stud size for the ring terminals? #10?

No, not #10. More like 1/4-28. Not 1/4-20 or M6-1.0. Don't have a thread gage or 1/4-28 nut handy to confirm.

Will this work for a cb radio from President electronics?

Hi, please check the specs of your radio. This unit can handle Power Output: 13.8V DC and the Power Input: 115V AC, 60Hz (270 Watt). You may check other details of the unit by visiting our website pyleaudio.com. Type the model number on the search box PS14KX for more details. Thank you.

What is the benefit of the 14kx over the 9kx as far as bench testing a car stereo that requires 12v dc

The 14kx has 7Amp more power than the 9kx. If just testing car radios or equipment with low power (current) draw one device at a time then the 9kx should suffice. In my case I use the 14kx due to running several 12v items each drawing up to a total of 3 Amps each for a total 10 amps at any given time and why I chose the 12 Amp supply.

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Universal Compact Bench Power Supply - 12 Amp Linear Regulated Home Lab Benchtop AC-to-DC 12V Converter w/ 13.8 Volt DC 115V AC 270 Watt Power Input, Screw Type Terminals,Cooling Fan- Pyramid PS14KX.5

Product ID: 623857096

Details

Brand
Pyramid
Colour
Black
Input voltage
115 Volts (AC)
Output voltage
13.8 Volts
Plug type
Type A

⚡12A constant current output

❄️Built-in cooling fan

🛠️Universal screw-type terminals

Description

⚡ Power your projects with precision and confidence!

COOL UNDER PRESSURE - Integrated heatsink and fan keep your power supply running smooth and safe
SAFETY FIRST DESIGN - Built-in short circuit and overload protection with auto-reset fuse for worry-free use
PLUG AND PLAY SIMPLICITY - Instant power conversion with switch-activated control—no extra batteries needed
RELIABLE 12 A LINEAR POWER - Consistent 12V DC output for flawless device operation
UNIVERSAL SCREW TERMINALS - Effortless compatibility with diverse electronics and test gear

The Pyramid PS14KX.5 is a 12 Amp linear regulated benchtop power supply converting 115V AC to a stable 12V DC output with 270W input capacity. Featuring universal screw-type terminals, built-in cooling fan, and comprehensive safety protections, it’s ideal for powering and testing radios, scanners, and other electronics in any home lab or professional workspace.

Specifications

ASIN	B07QV9PJ65
Brand Name	Pyramid
Colour	Black
Customer Reviews	4.5 4.5 out of 5 stars (496)
Global Trade Identification Number	00842893118444
Input Voltage	115 Volts (AC)
Item Type Name	Component
Manufacturer	Pyramid
Manufacturer Part Number	PS14KX.5
Model Number	PS14KX.5
Number of Items	5
Number of Outlets	1
Output Voltage	13.8 Volts (DC)
Plug Type	Type A
UPC	842893118444

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